Saturday, October 31, 2009
TOEFL Paper-and-Pencil with 3 audio CDs: Kaplan
Description: Kaplan's TOEFL® Paper-and-Pencil with 3 Audio CDs, Third Edition, is a complete review of all the material on the paper-based and computer-based TOEFL® exam. You get 3 realistic practice tests; Kaplan's powerful test-taking strategies; and easy-to-understand grammar, reading, listening, and writing reviews. TOEFL® Paper-and-Pencil will help you to score higher on the TOEFL® exam and get into the North American university or profession you want.
SUCCEED
on every section of the TOEFL® exam with a full review of Structure, Writing, Reading Comprehension, and Listening Comprehension.
PREPARE
with detailed information on the test, plus hundreds of practice questions to build your skills.
PRACTICE
with 3 full-length practice tests with complete score analysis as well as 3 audio CDs for listening comprehension and vocabulary review.
SCORE HIGHER
with effective strategies for managing time, understanding directions, handling stress, and more.
Book link Audio CD1 Audio CD2 Audio CD3
TOEFL Writing (TWE) Topics and Model Essays
Description: Topics in the following list may appear in your actual test. You should become familiar with this list before you take the computer-based TOEFL test. Remember that when you take the test you will not have a choice of topics. You must write only on the topic that is assigned to you.
Link 1 Or Link 2 Or Link 3
TOEFL Exam Essentials by Learning Express
Description: This essential guide to the TOEFL (Test of English as a Foreign Language) exam is perfect for studying on the go and tackling the exact kinds of questions tested on your upcoming official exam.
Information is presented in an easy-to-follow, straightforward manner so you can find what you need, learn the information, and move on. Each chapter covers the essential facts and practice you need to get prepared for your exam, as well as tips on where to go to for more detailed practice and further information. Whether you need to review all parts of the TOEFL exam or just skip ahead to the sections where you need extra practice and review, TOEFL Exam Essentials has just what you need for focused, targeted practice.
Link 1 Or Link 2
Writing Skills for the GRE & GMAT
Mastering the SAT Critical Reading Test
Description: Is the dreaded SAT Critical Reading Test weighing heavily on your mind? Get in shape to tackle it with this in-depth critical reading workout. You'll build up your skills and get the information and practice you need to improve your score—fast!
Introduction
* Overview and proven test-taking strategies
* A practical approach to the Critical Reading Test
* Specifics and strategies for the SAT vocabulary
Part I: Sentence Completion
* Strategies for the sentence completion section
* Practice questions with answers and detailed explanations
Part II: Reading Comprehension
* Strategies for short and long reading comprehension sections
* Practice questions for both short and long passages with answers and detailed explanations
Part III: 2 Practice Tests
* Structured like the actual test so you know what to expect
* Complete with answers and explanations
Link 1 Or Link 2 Or Link 3
IES question papers: Civil Engineering
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Obj-Civil Engineering-2000 Paper-I
Obj-Civi lEngineering-2000 Paper-II
Obj-Civil Engineering-2001 Paper-I
Obj-Civil Engineering-2001 Paper-II
Obj-Civil Engineering-2002 Paper-I
Obj-Civil Engineering-2002 Paper-II
Obj-Civil Engineering-2003 Paper-I
Obj-Civil Engineering-2003 Paper-II
Obj-Civil Engineering-2004 Paper-I
Obj-Civil Engineering-2004 Paper-II
Obj-Civil Engineering-2005 Paper-I
Obj-Civil Engineering-2005 Paper-II
Obj-Civil Engineering-2006 Paper-I
Obj-Civil Engineering-2007 Paper-I
Obj-Civil Engineering-2007 Paper-II
Obj-Civil Engineering-2008 Paper-I
Obj-Civil Engineering-2008 Paper-II
Obj-General Ability-2008 Paper-I
Download all in one(zip) [Mirror]
IES question papers: Electrical Engineering
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Obj-Electrical-1997 Paper-I
Obj-Electrical-1997 Paper-II
Obj-Electrical-1998 Paper-I
Obj-Electrical-1998 Paper-II
Obj-Electrical-1999 Paper-I
Obj-Electrical-1999 Paper-II
Obj-Electrical-2000 Paper-I
Obj-Electrical-2000 Paper-II
Obj-Electrical-2001 Paper-I
Obj-Electrical-2001 Paper-II
Obj-Electrical-2002 Paper-I
Obj-Electrical-2002 Paper-I
Obj-Electrical-2003 Paper-I
Obj-Electrical-2003 Paper-II
Obj-Electrical-2004 Paper-I
Obj-Electrical-2004 Paper-II
Obj-Electrical-2005 Paper-I
Obj-Electrical-2005 Paper-II
Obj-Electrical-2006 Paper-I
Obj-Electrical-2006 Paper-II
Obj-Electrical-2008 Paper-I
Obj-Electrical-2008 Paper-II
Obj-General Ability-2008 Paper-I
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IES ECE question papers
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N.B.: If there is a bandwidth error while downloading please try sometime later as the host may be busy due to heavy traffic.Use mirror link at the bottom in this case
Obj-1997 Paper-I
Obj-1997 Paper-II
Obj-1998 Paper-I
Obj-1998 Paper-II
Obj-1999 Paper-I
Obj-1999 Paper-II
Obj-2000 Paper-I
Obj-2000 Paper-II
Obj-2001 Paper-I
Obj-2001 Paper-II
Obj-2002 Paper-I
Obj-2002 Paper-II
Obj-2003 Paper-I
Obj-2003 Paper-II
Obj-2004 Paper-I
Obj-2004 Paper-II
Obj-2005 Paper-I
Obj-2005 Paper-II
Obj-2006 Paper-I
Obj-2006 Paper-II
Obj-2007 Paper-I
Obj-2007 Paper-II
Obj-2008 Paper-I
Obj-2008 Paper-II
Obj-General Ability-2008 Paper-I
Download all in one(zip) [Mirror].
DRDO SET Test tips
Official website: http://rac.in
Test tips:(Courtesy: Orkut.com, experience of sucessful candidate Sreeramamurthy)
Practice lot.................for getting good marks
because small difference you may get or not
but don't disappoint with this exam..............
you need practice only
i am also qualified in second time
First you need good command in the subjects is mandatory
but practice very important
last time i done this mistake
My main suggestion and Experience to prepare
1. books you follow standard books from that your B.Tech course
2. plan perfectly and at same time strictly follow the your plan
(Lot of peoples mistaken here even i was done last time)
and
3. Keep Two/Three tracks in your daily preparation
My self I done and strongly recommend like this
First two track( i prepared lly 1. and 2.)
1. Signals and Systems -->Control Systems --> Comm.System (Principles)
2. Digital Circuits (Boolean Algebra --> Gates --> Combinational Ckts --> Sequential Ckts--> Microprocessor)
Second track (lly 3. and 4. after First two tracks)
3. Networks-->Electronics Devices-->Analog Ckts--> Comm.Systems (Receiver Ckts)
4.EMT (Elecro Statics ---> Maxwell Eqn--> Transmission Lines --> Basic dipole antenna)
Note:
A. Take lot of time to prepare signals and system in 1.Track (You should be very strong in this)
B. Enjoy the Digital Ckt any where even in Railway station but Microprocessor prepare very
less at this movement but just before exam prepare lot because you need to memorize
C. Read good literature about Electronics Devices
D. You need basic in Elecro Statics,and practice in Maxwell eqn and Transmission lines
BARC (OCES/DGFS) Interview tips and info
In BARC interview, conceptual aptitude is examined rather than just the mere knowledge of the subject....that means u need to know the subject in great detail with complete understanding....just cramming a formula or cramming a definition will not work...u need to understand the basics behind any formula or definition....
Generally, interview panel has 6-8 members headed by a Chairman of the Committee. Each member asks questions....u r asked about ur favourite topics(generally three) and questions are focussed on that topics...they examine whether you have understood the subject or have just read it...they may start with a question and can go into the minute detail of that....it may happen that you may not answer a question completely but u know the basic fundamental. The knowledge of basic fundas pleases the committee very much.
One thing I wud like to mention here that the people here are very cordial and co-operative and they want every candidate to clear the interview...they provide ample hints and help you wherever you get stuck..the interview becomes more like a discussion session and a candidate feels great after coming out of the interview.
If your interview lasts for abt an hour or more then u have bright chances for a success.For Science people interview may become a bit lengthy and committee may also ask questions from other fields apart from the field u mentioned as your choice.
So, the crux is, identify your strong areas, study in great depth, develop thorough understanding and be positive and confident. A lot of time is left, u can sharpen ur skills during this time.
The time which u spent in the interview room will give u an indication of ur success...if ur interview is getting stretched and u r giving satisfactory replies then u may sense ur success...generally 1.5 hrs to 2 hrs is the time which a successful candidate spends in the interview room...u will know the result the moment ur interview gets over...if u r selected for BARC Training School you will be given a slip indicating a referral for Medical examination...if u get that slip u may congratulate urself for qualifying what is considered as the most trying technical interview in the country...
however if ur interview lasts for more than an hour and u r not being referred for medical test, u may still remain positive as you may be selected for other Training Schools of DAE like NPC Training School, NFC Training School etc....final results are however declared in the third week of july say around 18-25th July...
Joining date is always 1 September of every year.
For computer science candidates:
(Excerpt's from candidate experience)
Hii guys i cleared the interview on 17th june 2008 my interview lasted 1.5 hrs
Do all u r bascis of OS C C++ Data structures and AOA very well
Do pointers in C and all C++ basics very well
They try to confuse u a lot but be firm on u r answers
also they give enough hints to answer !!
Do all basic fundas thats the trick !
(Excerpt from Naveen's experience, successful candidate)
Im from computer science.....my interview was completed 24th june..The interview is memorable experience to me...just they are asking questions from our favorite subjects..I said only three subjects...they immediately said tell 2 more subj.... interview panes is very cool no need to tense......i said my fav subjects Data structures and C,C++,Computation,Algorithms, operating system....
they started from Data structures and c
questions from DS:
1.give 4 applications of each data structure??
from stack to graphs
2.write code for insert a element in middle in the linked list?
3.wat is the diff b/w arry and linked list?
4.wat diff b/w macro and function?
5.which searching tech more useful 4 linked list?
6.write code 4 binary search tree?
7.when the stack is full n empty similal type questions from queue,circular queue...
8.tell diff b/w macro and function?
9.way is inline funtion?(from c++)
from algorithms
if i wrote any program code immediately they said measure time complexity of ur program??
and many more from basics in c and ds
From OS:
How O/s manages data??
draw process state diagram?
wat is system call?
memory is very cheap in these days why these many memory techniques needed??
they are asking more questions from memory management..they are not asking much inner concepts.. some times they are asking silly questions..at that time testing our patience.....be patient at that time....my interview duration 1hour 15min...
even though im not selected i tought my experiece will useful to someone......
For accommodation lot of problem in my day be ready with alternative sources
For electronics candidates
(Excerpt's from candidate experience)
The interview starts with a normal talk like where u from etc etc, then they ask the subject u studied.... i said three n stopped... then they asked tell us some more subjects.. so after i told a list of subjects they settled for 5 subjects. (digital, semiconductor, micro controller, VLSI, Linear Integrated circuits) first they will ask u about ur BE project so be very clear in it don't get stuck up in project anywhere... bring your project report along with you. the questions will not be like the one which we r asked in our college vivas... they will be specific n application oriented. they will not ask u the properties the make up n all... all they want is u to use the info u have to design n get the solution of the problem they will give you. (for me they didn't ask any characteristics n all that does not mean they will not ask at all. come prepared) they used to give me inputs n outputs which was desired by them n asked me design using op amps or design using logic gates....... the overall interview is fun filled interaction with the panel there r jokes cracked be relaxed n laugh out along with the panel if u get stuck somewhere while designing or telling the answer u will be pushed a lot... they throw u ample of hints such that u can pick up from where u got stuck. they will pull u to the solution
(Excerpts from another successful ECE candidate)
i was interviewed for 1.40 hr it was really a good experience all (6)committee members were very very helpful(every interview they starts with mentality 2 select u but rest is in ur hand ) .they asked some formal questions to make u feel comfortable after that they asked my favorite subjects i said ..Electronics devices(including opamps) ,digital ckt & systems ,network theory& analysis n stopped then 1 member said name some more ...then i added analog ckt and tv&radars(thanx to recently ended 8th sem) ..friends i think its better to name at least 4 subjects in decreasing order of ur interest or preparation coz panel will follow d same sequence of subjects 4 questioning so ur 1st fav. subj. will help u to get 1st impression (whole performance will b considered but at least by this u cn gain confidence)........one more thing while explaining any thing on paper try to cover each n every minute detail(including graphs& characteristic curves) & never give any ans. in hurry no matters how well u know abt that for eg :while explaining ohms law never 4get 2 add "keeping all physical condition constant"(of course they r nt askin ohms law
For electrical candidates:
(Excerpt's from candidate experience)
interview started with formal questions like
have u placed in any company if yes then why did u come for barc.
what is ur final year project.(so that u can feel relaxed). of 6 memebers in commitee one have of them started about favourite subjects.i said conrlsys,power sys,machines.
they asked me to about which subject to start first .(control sys).but started with very simple networks . i have answered there question one of the mamdam gone through marks memo and found that i have pulse and digital ckts so she asked about output of skt with rc ckt and diodes (not tough but requires careful observation)and wave form for o/p with pulse i/p.and what happens when resister value is changed with wave forms and transient analyssis of charged inductor (it too requires careful observation).they also concentrated on filters design through control system root locus and significance of poles with respective to filters. then one fo then sir asked me to choose topic in machines. i said induction motor(3 phase).( now tough times started )
asked principle of im (very easy). and asked to draw characteristics drawn now on that graph all question based like stable operational point in graph variation of i/p parameters
and there effects on the system( i felt very tough at beginning but they directed (hinted) with small questions which very easy and very useful to answer final conclusion( big ques)).i.e they are trying to help u to answer complicated ques with simple basic principle u know.(this is the best part of interview because i thought i can never there ques but at end they made me to answer it through simple fundamental i know. i felt like scientist there it self :)) they always help u if u r strong at fundas and able to correlate hints given by them to form final anser.
then they started asking me about ( said not explain but asked to give me short answers) skin effect,ferrentier effect,fault current,hvdc uses
For Instrumentation and Control Candidates:
(Excerpt's from candidate experience)
The panel consisted of 8 … the chairman was very friendly… they made me comfortable… and then asked my favourite subjects for the interview..
I had prepared Industrial instru, process control, sensor & transducer , transmitter and telemetry…
They asked me which subject to start with and I said any one…
They start with RTD.. first asked me to write the chr. Equation, then to find out sensitivity from it.. then drift,span, gain from it.. then to do linear approximation of it….
In between they were also asking about some definitions of accuracy, sensitivity etc..
Difference between gain and transfer function..
Actually where the bookish knowledge ends … there question starts … then they went to wheat stone bridge and grilled me about null deflection etc… why it is not used these days.
[Courtesy: Orkut.com]
DRDO SET ECE question paper 2008
(N.B: Based on memory so some errors might have crept in, some images might not be available)
1.The current I in the given network.
a) 1A b) 3A c) 5A d) 7A
2.For the Delta- Wye transformation in given figure, the value of the resistance R is.
a) 1/3 ohms b) 2/3 ohms c) 3/2 ohms d) 3 ohms
3.In the given network, the Thevenin’s equivalent as seen by the load resistance Rl is
a) V=10 V, R= 2ohms b) V=10V, R=3 ohms c) V=15V, R= 2ohms d) V=15V, R=3 ohms
4.The current I in a series R-L circuit with R=10 ohms and L=20mH is given by i=2sin500t A. If v is the voltage across the R-L combination then i
a) lags v by 45 degree b) is in-phase with v c) leads v by 45 d) lags v by 90
5.In thr given network, the mesh current I and the input impedance seen by the 50 V source, respectively, are
a) 125/13 A and 11/8 ohms b) 150/13 A and 13/8 ohms c) 150/13 A and 11/8 ohms d) 125/13 A and 13/8 ohms
6.A voltage source having a source impedance Z = R + jX can deliver maximum Average power to a load impedance Z, when
a) Z = R + jX b) Z = R c) Z = jX d) Z = R –jX
7.In the given circuit, the switch S is closed at t=0. Assuming that there is no initial Charge in the capacitor, the current i(t) for t>0 is
a) V/R e^ (-2t/RC) b) V/R e^ (-t/RC) c) V/2R e^ (-2t/RC) d) V/2R e^ (-t/RC)
8.For the circuit in given figure, if e(t) is a ramp signal, the steady state value of the Output voltage v(t) is
a) 0 b) LC c) R/L d) RC
9.For the series RLC circuit in given figure, if w=1000 rad/sec, then the current I (in Amperes) is
a) 2 ∟-15 b) 2 ∟15 c) √2∟-15 d) √2∟15
10.The Y-parameter matrix (mA/V) of the two-port given network is
a) [2 -1 -1 2] b) [2 1 -1 2] c) [1 -2 -1 2] d) [2 1 1 2]
11.The maximum number of trees of the given graph is
a) 16 b) 25 c) 100 d) 125
12.Given figure shows a graph and one of its trees. Corresponding to the tree, the group of branches that CAN NOT constitute a fundamental cut set is
a) 1,2,3 b) 1,4,6,8,3 c) 5,6,8,3 d) 4,6,7,3
13.The Y-parameter matrix of a network is given by Y=[1 1 -1 1] A/V. The Z11 parameter of the same network is
a) ½ ohms b) 1/√2 ohms c) 1 ohms d) 2 ohms
14.For the given circuit, the switch was kept closed for a long time before opening it at t=0. The voltage v(0+) is
a) -10 V b) -1 V c) 0V d) 10 V
15.The input impedance of a series RLC circuit operating at frequency W=√2w, w being the resonant frequency, is
a) R-j(wL/√2) ohms b) R+j(wL/√2) ohms c) R-j√2wL ohms d) R-j√2wL ohms
16.The threshold voltage V is negative for
a) an n-channel enhancement MOSFET b) an n-channel depletion MOSFET c) an p-channel depletion MOSFET d) an p-channel JFET
17.At a given temperature, a semiconductor with intrinsic carrier concentration ni= 10 ^ 16 / m^3 is doped with a donor dopant of concentration Nd = 10 ^ 26 /m^3.
Temperature remaining the same, the hole concentration in the doped semiconductor is
a) 10 ^ 26 /m^3 b) 10 ^ 16 /m^3 c) 10 ^ 14 /m^3 d) 10 ^ 6 /m^3}
18.At room temperature, the diffusion and drift constants for holes in a P-type semiconductor were measured to be Dp = 10 cm^2/s and µp = 1200 cm^2/V-s, respectively. If the diffusion constant of electrons in an N-type semiconductor at the same temperature is Dn = 20 cm^2/s, the drift constant for electrons in it is
a) µn = 2400 cm^2/V-s b) µn = 1200 cm^2/V-s c) µn = 1000 cm^2/V-s d) µn = 600 cm^2/V-s
19.A common LED is made up of
a) intrinsic semiconductor b) direct semiconductor c) degenerate semiconductor d) indirect semiconductor
20.When operating as a voltage regulator, the breakdown in a Zener diode occurs due to the
a) tunneling effect b) avalanche breakdown c) impact ionization d) excess heating of the junction.
21.If the common base DC current gain of a BJT is 0.98, its common emitter DC current gain is
a) 51 b) 49 c) 1 d) 0.02
22.Negative resistance characteristics is exhibited by a
a) Zener diode b) Schottky diode c) photo diode d) Tunnel diode
23.Let En and Ep, respectively, represent the effective Fermi levels for electrons and holes during current conduction in a semiconductor. For lasing to occur in a P-N junction of band-gap energy 1.2 eV, (En - Ep) should be
a) greater than 1.2eV b) less than 1.2eV c) equal to 1.1eV d) equal to 0.7eV
24.In a P-well fabrication process, the substrate is
a) N-type semiconductor and is used to build P-channel MOSFET
b) P-type semiconductor and is used to build P-channel MOSFET
c) N-type semiconductor and is used to build N-channel MOSFET
d) P-type semiconductor and is used to build N-channel MOSFET
25.In a MOS capacitor with n-type silicon substrate, the Fermi potential ¢ = -0.41 V and the flat-band voltage Vfb = 0V. The value of the threshold voltage Vt is
a) -0.82 V b) -0.41 V c) 0.41 V d) 0.82
Refer given figure for question 26 and 27. Assume D1 and D2 to be ideal diodes.
26.Which one of the following statements is true?
a) Both D1 and D2 are ON.
b) Both D1 and D2 are OFF.
c) D1 is ON and D2 is OFF.
d) D2 is ON and D1 is OFF.
27.Values of Vo and I, respectively, are
a) 2V and 1.1 mA b) 0V and 0 mA c) -2V and 0.7 mA d) 4V and 1.3 mA
28.In a BJT CASCODE pair, a
a) common emitter follows a common base
b) common base follows a common collector
c) common collector follows a common base
d) common base follows a common emitter
29.Inside a 741 op-amp, the last functional block is a
a) differential amplifier b) level shifter c) class-A power amplifier d) class-AB power amplifier
30.For the MOSFET in the given circuit, the threshold voltage Vt = 0.5V, the process parameter KP = 150 µA/V^2 and W/L = 10. The values of Vd and Id, respectively, are
a) Vd = 4.5 V and Id = 1 mA
b) Vd = 4.5 V and Id = 0.5 mA
c) Vd = 4.8 V and Id = 0.4 mA
d) Vd = 6 V and Id = 0 mA
31.A negative feedback is applied to an amplifier with the feedback voltage proportional to the output current. This feedback increases the
a) input impedance of the amplifier b) output impedance of the amplifier c) distortion in the amplifier d) gain of the amplifier
32.The early effect in a BJT is modeled by the small signal parameter
a) r0 b) r∏ c) gm d) β
33.For a given filter order, which one of the following type of filters has the least amount of ripple both in pass-band and stop-band?
a) Chebyshev type I b) Bessel c) Chebyshev type II d) Elliptic
34.For a practical feedback circuit to have sustained oscillation, the most appropriate value of the loop gain T is
a) 1 b) -1 c) -1.02 d) 1.02
35.Assume the op-amps in given figure to be ideal. If the input signal vi is a sinusoid of 2V peak-to-peak and with zero DC component, the output signal vo is a
a) sine wave b) square wave c) pulse train d) triangular wave
36.In a common source amplifier, the mid-band voltage gain is 40 dB and the upper cutoff frequency is 150kHz. Assuming single pole approximation for the amplifier the unity gain frequency fT is
a) 6 MHz b) 15 MHz c) 150 MHz d) 1.5 GHz
37.An op-amp is ideal except for finite gain and CMRR. Given the open loop differential gain Ad=2000, CMRR = 1000, the input to the noninverting terminal is 5.002 V and the input to the inverting terminal is 4.999 V, the output voltage of the op-amp is
a) 14 V b) 24 V c) -6 V c) -8 V
38.The op-amp in the circuit in given figure has a non-zero DC offset. The steady state value of the output voltage Vo is
a) –RC dvs(t)/ dt b) – (1/RC)|vs(t)dt c) –V d) +V
39.For the circuit in given figure, if the value of the capacitor C is doubled, the duty-cycle of the output waveform Vo
a) increases by a factor of 2 b) increases by a factor of 1.44 c) remains constant d) decreases by a factor of 1.44
40.Assume the op-amp in the given circuit to be ideal. The value of the output voltage Vo is
a) 3.2 Vi b) 4 Vi c) 9 Vi d) 10 Vi
41.The complement of the Boolean expression F = (X + Y¯ + Z)(X¯ + Z¯)(X + Y) is
a) XYZ+XZ¯+Y¯Z b) X¯YZ¯+XZ+X¯Y¯ c) X¯YZ¯+XZ+YZ d) XYZ+X¯Y¯
42.The Boolean function F(A,B,C,D) = ∑(0,6,8,13,14) with don’t care conditions d(A,B,C,D) = ∑(2,4,10) can be simplified to
a) F = B¯D¯+CD¯+ABC¯ b) F = B¯D¯+CD¯+ABC¯D c) F = AB¯D¯+CD¯+ABC¯ d) F = B¯D¯+CD¯+ABCD
43.The Boolean function F = A¯D¯+B¯D can be realized by one of the following figures
44. For the multiplexer in given figure, the Boolean expression for the output Y is
a) A¯B¯+B¯C¯+AC b) AB¯+B¯C¯+AC¯ c) AB¯+B¯C+AC d) A¯B¯+B¯C+A¯C
45. Which one of the following is TRUE?
a) Both latch and flip-flop are edge triggered.
b) A latch is level triggered and a flip-flop is edge triggered.
c) A latch is edge triggered and a flip-flop is level triggered.
d) Both latch and flip-flop are level triggered.
46. In a schottky TTL gate, the Schottky diode
e) increases the propagation delay
f) increases the power consumption
g) prevents saturation of the output transistor
h) keeps the transistor in cutoff region
47. For which one of the following ultraviolet light is used to erase the stored contents
a) PROM b) EPROM c) EEPROM d) PLA
48. Which one of the following is NOT a synchronous counter
a) Johnson counter b) Ring counter c) Ripple counter d) Up-down counter
49. In 8085 microprocessor, the accumulator is a
a) 4 bit register b) 8 bit register c) 16 bit register d) 32 bit register
50. In the register indirect addressing mode of 8085 microprocessor, data is stored
a) at the address contained in the register pair
b) in the register pair
c) in the accumulator
d) in a fixed location of the memory
51. The output w[n] of the system shown in given figure is
a) x[n] b) x[n-1] c) x[n] – x[n-1] d) 0.5(x[n-1] + x[n])
52. Which one of the following is a periodic signal
a) x(t) = 2 e^j(t+(π/4)) b) x[n] = u[n] + u[-n] c) x[n] = ∑{∂[n-4k]-∂[n-1-4k]} where k = -∞to ∞ d) x(t) = e^ (-1+j)t
53. If the input-output relation of a system is y(t) = ∫x(t) dt where t = -∞ to 2t
a) linear, time-invariant and unstable
b) linear, non-causal and unstable
c) linear, causal and time invariant
d) non-causal, time invariant and unstable
54. Which one of the can be the magnitude of the transfer function | H(jw) | of a causal system
55. Consider the function H(jw) = H1(w) + jH2(w), where H1(w) is an odd function and H2(w) is an even function. The inverse Fourier transform of H(jw) is
a) a real and odd function
b) a complex function
c) a purely imaginary function
d) a purely imaginary and odd function
56. The laplace transform of given signal is
a) –A((1-e^cs)/s) b) A((1-e^cs)/s) c) A((1-e^-cs)/s) d) –A((1-e^-cs)/s)
57. If X(z) is the z-transform of x[n] = (1/2)^ |n|, the ROC of X(z) is
a) |z| > 2 b) |z| < 2 c) 0.5<|z|<2 d) the entire z-plane
58. In a linear phase system, τg the group delay and τp the phase delay are
a) constant and equal to each other b) τg is a constant and τp is proportional to w c) a constant and τg is proportional to w d) τg is proportional to w and τp is proportional to w
59. A signal m(t), band-limited to a maximum frequency of 20 kHz is sampled at a frequency fs kHz to generate s(t). An ideal low pass filter having cut-off frequency 37 kHz is used to reconstruct m(t) from s(t). The maximum value of fs required to reconstruct m(t) without distortion is
a) 20 kHz b) 40kHz c) 57 kHz d) 77 kHz
60. If the signal x(t) shown in given figure is fed to an LTI system having impulse response h(t) as shown in given figure, the value of the DC component present in the output y(t) is
a) 1 b) 2 c) 3 d) 4
61. The characteristic equation of an LTI system is given as s^3 + Ks^2 + 5s + 10. When the system is marginally stable, the value of K and the sustained oscillation frequency w, respectively, are
a) 2 and 5 b) 0.5 and √5 c) 0.5 and 5 d) 2 and √5
62. The time required for the response of a linear time-variant system to reach half the final value for the first time is
a) delay time b) peak time c) rise time d) decay time
63. The signal flow graph of the given network is
64. Let c(t) be the unit step response of a system with transfer function K(s+a)/(s+K). If c(0+)=2 and c(∞)=10, then the values of a and K, respectively, are
a) 2 and 10 b) -2 and 10 c) 10 and 2 d) 2 and -10
65. The loop transfer function of an LTI system is G(s)H(s)= K(s+1)(s+5) / s(s+2)(s+3). For K>0, the point on the real axis that DOES NOT belong to the root locus of the system is
a) -0.5 b) -2.5 c) -3.5 d) -5.5
66. The state space equation of the circuit shown in given figure for x1=v0, x2=I is
67. The open loop gain of a unity feedback system is G(s)=wn^2 / s(s+2wn). The unit step response c(t) of the system is
68. If A = [2 0 0 2], then e^At is given by
a) [e^2t 0 0 e^2t] b) [e^-2t 0 0 e^-2t] c) [e^t/2 0 0 e^t/2] d) [e^-t/2 0 0 e^-t/2]
69. The angles of the asymptotes of the root loci of the equation s^3 + 5s^2 + (K+2)s + K = 0, for 0<=K<∞, are
a) 0 and 270 b) 0 and 180 c) 90 and 270 d) 90 and 180
70. The bode plot corresponding to a proportional derivative controller is the one shown in given figure
71. In frequency modulation, the instantaneous
a) amplitude of the carrier signal is varied with the instantaneous amplitude of the message signal
b) amplitude of the carrier signal is varied with the instantaneous frequency of the message signal
c) frequency of the carrier signal is varied with the instantaneous amplitude of the message signal
d) frequency of the carrier signal is varied with the instantaneous frequency of the message signal
72. If X is a zero mean Gaussian random variable, then P{X<=0} is
a) 0 b) 0.25 c) 0.5 d) 1
73. If a single-tone amplitude modulated signal at a modulation depth of 100% transmits a total power of 15W, the power in the carrier component is
a) 5W b) 10W c) 12W d) 15W
74. In a superheterodyne receiver, rejection of the image signal can be achieved by using a
a) higher local oscillatorn frequency b) crystal oscillator c) narrow band IF filter d) narrow band filter at RF stage
75. The number of bbits per sample of a PCM system depends upon the
a) sampler type b) quantizer type c) number of levels of the quantizer d) sampling rate
76. Which one of the following is used for the detection of AM-DSB-SC signal
a) Ratio detector b) Foster-Seeley discriminator c) Product demodulator d) Balanced-slpoe detector
77. Which one of the following signal pairs can represent a BPSK signal
a) A cos2πfct, A sinπfct
b) A cos2πfct, - A sinπfct
c) - A cos2πfct, A sinπfct
d) A sin2πfct, A cosπfct
78. Which one of the following can be used for the detection of the noncoherent BPSK signal
a) matched filter b) phase-locked loop c) envelope detector
d) product demodulator
79. Bits of duration Tb are to be transmitted using a BPSK modulation with a carrier of frequency Fc Hz. The power spectral density of the transmitted signal has the first null at the normalized frequency
a) |F – Fc|Tb = 0 b) |F – Fc|Tb = 1 c) |F – Fc|Tb = 2 d) |F – Fc|Tb = 4
80. The probability of bit error of a BPSK modulation scheme, with transmitted signal energy per bit Eb, in an additive white Gaussian noise channel having one-sided power spectral density N0, is
a) (1/2) erfc(Eb/2N0) b) (1/2) erfc√(Eb/2N0) c) (1/2) erfc(Eb/N0) d) (1/2) erfc√ (Eb/N0)
81. For a given transmitted pulse p(t), 0<=t<=T, the impulse response of a filter matched to the received signal is
a) –p(t-T), 0<=t<=T b) –p(T-t), 0<=t<=T c) p(t-T), 0<=t<=T d) p(T-t), 0<=t<=T
82. The multiple access communication scheme in which each user is allocated the full available channel spectrum for a specified duration of time is known as
a) CDMA b) FDMA c) TDMA d) MC-CDMA
83. GSM system uses TDMA with
a) 32 users per channel b) 16 users per channel c) 8 users per channel d) 4 users per channel
84. If Rx(τ) is the auto-correlation function of a zero-mean wide-sense stationary random process X, then which one of the following is NOT true?
a) Rx(τ) = Rx(-τ) b) Rx(τ) = -Rx(-τ) c) σx^2 = Rx(0) d) |Rx(τ)| <=Rx(0)
85. If E denotes the expectation operator, then E[X-EX]^3 of a random variable X is
a) EX^3 – E^3X b) EX^3 + 2E^3X – 3EX Ex^2 c) 3EX^3 – E^3X d) 2EX^3 + E^3X – 3EX EX^2
86. A discrete memoryless source produces symbols m1,m2,m3 and m4 with probabilities 1/2, 1/4 , 1/8 and 1/8, respectively. The entropy of the source is
a) ¼ b) 1 c) 7/4 d) 2
87. A channel has a signal-to-noise ratio of 63 and bandwidth of 1200 Hz. The maximum data rate that can be sent through the channel with arbitrary low probability of error is
a) 600 bps b) 1200 bps c) 4800 bps d) 7200 bps
88. For the vectors A = X ax + Y ay and B = Z az, del . (A X B) is
a) 0 b) 1 c) XZ d) YZ
89. Which one of the following relations represents Strokes’ theorem (symbols have their usual meaning)?
a) ∫s del X A.ds = 0 b) ∫L A.dl = ∫s del X A.ds c) ∫s A X dS = -∫v (del X A)dv d) ∫v del.Adv = ∫s A.ds
90. Which one of the following relations is not correct (symbols have their usual meaning)?
a) del X E = - ∂B/∂t b) del X H = J + ∂E/∂t c) del.D = ρv d) del.B = 0
91. The electric field component of a uniform plane wave propagating in a lossless magnetic dielectric medium is given by E(t,z)=ax 5cos(10^9 t – 20/3 z)V/m. If η0 represents the intrinsic impedance of the free space, the corresponding magnetic field component is given by
a) H(t,z)= ay 5/2 η0 cos(10^9t – 20/3 z)A/m
b) H(t,z)= ay 10/ η0 cos(10^9t – 20/3 z)A/m
c) H(t,z)= az 5/2 η0 cos(10^9t – 20/3 z)A/m
d) H(t,z)= az 10/ η0 cos(10^9t – 20/3 z)A/m
92. The skin depth of a non-magnetic conducting material at 100 MHz is 0.15 mm. The distance which a plane wave of frequency 10 GHz travels in this material before its amplitude reduces by a factor of e^-1 is
a) 0.0015 mm b) 0.015 mm c) 0.15 mm d) 1.5 mm
93. A lossless transmission line has a characteristic impedance of 100 ohms and an inductance per unit length of 1 μH/m. If the line is operated at 1 GHz, the propagation constant β is
a) 2π rad/m b) 20π/3 rad/m c) 20π rad/m d) 2π *10^5 rad/m
94. When a load resistance Rl is connected to a lossless transmission line of characteristic impedance 75 ohms, it results in a VSWR of 2. The load resistance is
a) 100 ohms b) 75√2 ohms c) 120 ohms d) 150 ohms
95. A two-port network characterized by the S-parameter matrix, [S] = [0.3 L0 0.9 L90
0.9 L90 0.2 L0]
Is
a) both reciprocal and lossless b) reciprocal, but not lossless c) lossless, but not reciprocal d) neither reciprocal nor lossless
96. A lossless air filled rectangular waveguide has internal dimensions of a cm * b cm. If a=2b and the cutoff frequency of the TE02 mode is 12 GHz, the cutoff frequency of the dominant mode is
a) 1 GHz b) 3 GHz c) 6 GHz d) 9 GHz
97. A Hertzian dipole antenna is placed at the origin of a coordinate system and it is oriented along z-axis. In which one of the following planes the radiation pattern of the antenna has a circular shape?
a) x=0 b) y=0 c) z=0 d) ø=45
98. Which one of the following statements is not true?
a) Antenna losses are taken into account in calculating its power gain
b) For an antenna which does not dissipate any power, the directive gain and the power gain are equal
c) Directivity of an antenna is the maximum value of its directive gain
d) The directive gain of a Hertzian dipole is same in all direction
99. The directivity of a half dipole antenna is
a) 1.0 b) 1.5 c) 1.64 d) 2
100. Which one of the following is not true for a step index optical fibre?
a) It can support multiple modes
b) HE11 mode is its lowest order mode
c) The refractive index of the cladding is higher than that of the core
d) At a given wavelength, single mode operation is possible by proper choice of core diameter, core and cladding refractive indices.
DRDO SET General Abilty Question paper 2008
(Section B)
101. Sarnath is situated in the state of
a) MP b) Bihar c) Punjab d) UP
102. Green house effect is due to the increase of atmospheric
a) CO2 level b) SO2 level c) CO level d) N2 level
103. In the month of July, it is winter in
a) New York b) Beijing c) Sydney d) London
104. The chairman of the Planning commission of India is
a) The prime minister b) The vice-president c) The union finance minister d) The union commerce minister
105. The satellite launch vehicle that placed a number of satellites ito orbit in May 2008 is
a) PSLV-C7 b) PSLV-C8 c) PSLV-C9 d) PSLV-C10
106.DRDO was formed in
a) 1947 b) 1950 c) 1954 d) 1958
107. SAMYUKTA is developed for the use of
a) Navy b) Army c) Air force d) RAC
108. DARL 202 is a variety of
a) pea b) garlic c) capsicum d) tomato
109. TRISHUL is
a) a surface to surface battlefield missile
b) a quick reaction surface to air missile
c) an intermediate range ballistic missile
d) a supersonic cruise missile
110. HUMSA is a
a) sonar b) tank c) mine d) night vision device
111. The value of 1+2i / 3-4i + 2-I / 5i , where i^2 is -1, is
a) -5/2 b) 5/2 c) 2/5 d) -2/5
112. The particular solution of the differential equation d^2y/dx^2 + 2 dy/dx + 5y = 0 satisfying the conditions y(0)=0 and y’(0)=1 is
a) y=1/2 e^-x cos2x b) y=1/2 e^-x sin4x c) y=1/2 e^-x sin2x d) y=1/2 e^-x cos4x
113. For the vectors A=3i-2j+k and B=2i-k, the value of (A*B).A is
a) 0 b) 1 c) 2 d) 3
114. The orthogonal trajectory of the family of curves x^2-y^2 = a (where a is a constant) and passing through the point (1,1) is
a) y=-1/x b) y=1/x c) y=-x d) y=x
115. The value of the line integral ∫ y^2 dx + 2xydy over the curve x=accost, y=asint is
a) 0 b) 1 c) 2 d) 4
116. The n-th partial sum of the infinite series 1/1*2 + 1/2*3 + 1/3*4+……1/n*(n+1)……..
a) 1/n+1 b) n+2/n+1 c) n/n+1 d) n-1/n+1
117. The complex-valued function f(z)=e^z is analytic for
a) no z b) all z c) real z only d) imaginary z only
118. The inverse of the matrix [ cos A sin A
-sin A cos A] is
a) [ -cos A Sin A b) [cos A sin A} c) [cos A -sin A d) [cos A -sin A
sin A cos A] sin A -cos A] -sin A cos A] sin A cos A]
119. Consider the function f(x) defined as
F(x) = 3x-1, x<0
0, x=0
2x+5, x>0
In the following table, List I shows 4 expressions for limits of f(x) and List II indicates the values of the limits
List I List II
P.Lim x->2 f(x) 1. -1
Q.Lim x->0+ f(x) 2. 9
R.Lim x->0- f(x) 3. -10
S.Lim x->-3 f(x) 4. 5
The correct matches are
a) P-2,Q-4,R-1,S-3 B) P-2,Q-4,R-3,S-1 C) P-4,Q-2,R-1,S-3 D) P-4,Q-2,R-3,S-1
120. Two events A and B with probability 0.5 and 0.7, respectively, have joint probability of 0.4. The probability that neither A nor B happens is
a) 0.2 b) 0.4 c) 0.6 d) 0.8
121. Consider the differential equation
X^2 d^2/dx^2 + x dy/dx + (x^2 - 4)y = 0. The statement which is not true for it is
a) It is a linear second order ordinary differential equation
b) It can not be reduced to a differential equation with constant coefficients
c) X=0 is a regular singular point
d) It is a non-homogeneous second order ordinary differential equation
122. The sum of two numbers is 16 and the sum of their squares is a minimum. The two numbers are
a) 10,6 b) 9,7 c) 8,8 d) 5,11
123. The value of the definite integral 0∫(π/2)^(1/3) x^2 sin(x^3)dx is
a) -1/3 b) 0 c) 1 d) 1/3
124. A circle C2 is concentric with the circle C1 : x^2 + y^2 -4x +6y -12 =0 and has a radius twice that of C1. The equation of the circle C2 is
a) x^2 + y^2 -4x +6y -13 =0 b) x^2 + y^2 -4x +6y -87 =0 c) x^2 + y^2 -4x +6y -100 =0 d) x^2 + y^2 -4x +6y -88 =0
125. Consider the quadratic equation x^2 + px + q =0. If p and q are roots of the equation, the values of p and q are
a) p=0, q=0 only b) p=1, q=-2 only c) p=0, q=0 and p=1, q=-2 d) p=0, q=0 and p=-2, q=1
126. Consider the list of words: etiquette, accommodate, forty, exaggerate, continous, independent, receipt. The number of misspelt words are
a) 1 b) 2 c) 3 d) 4
127. Consider the following sentences
1. A few friends he has are all very rich.
2. Do not insult the weak.
3. The later of the two persons was more interesting.
4. All the informations were correct.
Out of these sentences, the grammatically correct sentence is
a) 1 b) 2 c) 3 d) 4
128. The appropriate auxiliary verb to fill in the blank of the sentence “Gandhi knew that he __ soon be jailed.”is
a) would b) will c) shall d) may
129. The number of missing punctuation marks in the sentence “Rajesh along with Amit went to the market.”is
a) 0 b) 1 c) 2 d) 3
130. The meaning of the word PLAGIARISM is
a) theft of public money b) theft of ideas c) belief in one god d) belief in many gods
132. ACROPHOBIA is the abnormal fear of
a) open spaces b) height c) fire d) water
133. The appropriate pair of prepositions to fill in the blank in the sentence “He was angry __ me, because my remarks were aimed __ him.”is
a) at,to b) with, at c) with, to d) at, for
134. The appropriate word(s) to fill up the blank in the sentence “ I remember __ voices in the middle of the night.”is (are)
a) hear b) to hear c) hearing d) heard
135. The passive voice form of the sentence “I have known him for a long time.”is
a) He is known to me for a long time.
b) He is known by me for a long time.
c) He has been known to me for a long time.
d) He has been known by me for a long time.
136. If kennel is to a dog, then __ is to a hen.
a) nest b) coop c) hole d) stable
137. If NATION is to 5236765, then NOTION is to
a) 573675 b) 563765 c) 576375 d) 557365
138. The next two numbers of the series 3,5,11,21 are
a) 34 and 52 b) 34 and 53 c) 35 and 52 d) 35 and 53
139. A, B and C are three places in India with longitudes 80E, 85 E and 90 E respectively. Which one of the following statements about the local times of the places is true?
a) Local time of C is ahead of that of B.
b) Local time of B is ahead of that of C.
c) Local time of A is ahead of that of C.
d) A, B and C all have the same local time.
140. In this question, notations +, / and * are used as follows
A + B means A is the husband of B.
A / B means A is the sister of B.
A * B means A is the son of B.
With these relations, the relationship
denoted by P / Q * R is
a) P is son of R
b) P is daughter of R
c) P is uncle of R
d) P is father of R
141. If DELHI is written as EDHIL, then PARIS is written as
a) APRIS b) SARIP c) SAPIR d) APISR
142. The number of prime numbers between 10 and 50 is
a) 10 b) 11 c) 12 d) 13
143. The odd one in the list : LAN, TCP/IP, HACKER and KILLER is
a) LAN b) TCP/IP c) KILLER d) HACKER
144. SAW is to carpenter as SCALPEL is to
a) surgeon b) mason c) plumber d) tailor
Download scanned copy of DRDO SET 2008 General ability paper
Alternative download link
[Submitted by: prem, Courtesy: Orkut community DRDO SET 2009 Sc'B]
Due to a large no. of requests, I am putting down the solution keys for the General Ability Paper strictly according to the question order as given in the scanned PDF:
101)C, 102)C, 103)A, 104)C, 105) B, 106)C, 107)B, 108)B ,109)C, 110)A, 111)B, 112)A, 113)D, 114)D, 115)B, 116)D, 117)B, 118)C, 119)A, 120)D, 121)C, 122)D, 123)C, 124)B, 125)C, 126)D, 127)C, 128)A, 129)NA , 130)NA , 131)NA , 132)NA , 133)D , 134)A , 135)A, 136)A, 137)C, 138)D, 139)B, 140)C, 141)D, 142)A, 143)C , 144)A, 145)C, 146)D, 147)B, 148)C, 149)B, 150)A
Some of the answer keys are not available, reader's are requested to discuss them.I thank the reader's for their appreciation & feedback.
IAS General Studies papers
Preliminary paper :
Preliminary General Studies 1993
Mains papers (Paper I + Paper II):
General Studies 1987
General Studies 1991
General Studies 1992
General Studies 1993
General Studies 1999
General Studies 2001
General Studies 2005
General Studies 2008
DRDO SET Computer Science (CS) 2008 paper
No. of questions: 100
Download: Link 1 Or Link 2 Or Link 3
(Thanks to Ajay for the paper & Orkut DRDO SET 2009 community.)
AIEEE question papers and solutions
AIEEE-2002-Question-Paper
AIEEE-2002-Solution
AIEEE-2007-Question-Paper
AIEEE-2007-Solutions
AIEEE-2008-Question
Aieee-2008--Solution
Aieee-2009-Paper
Aieee-2009-Answers
DRDO SET Electrical paper 2008
No. of questions: 100 in
Download: Link 1 Or Link 2
(Courtesy: Orkut DRDO SET 2009 Sc'B community)
Friday, October 30, 2009
Sams Teach Yourself C#
Description: This book will take you, step by step, through learning C#, the computer industry's newest and most productive language. This complete guide covers topics from basic program construction to intermediate level application engineering.
Following "21 days" formula, this book is a three week intensive course for the beginning programmer who wishes to get started with this exiting new coding standard. The comprehensive lesson plan will enable the reader to understand, design and build applications that are compatible with the new Microsoft .net framework.
Link
Examples in Structural Analysis
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Geotechnical Engineering:Principles and Practices of Soil Mechanics and Foundation Engineering By V N S Murthy
Description: A must have reference for any advanced student or engineer involved with foundations, piers, and retaining walls, this remarkably comprehensive resource illustrates soil characteristic concepts with examples that detail a wealth of practical considerations, It covers the latest designs for drilled pier foundations and mechanically stabilized retaining walls and explores a pioneering approach for predicting the nonlinear behavior of laterally loaded long vertical and batter piles. While it’s an excellent teaching, text, the quick reference it affords to a huge range of tests and the appendices filled with critical data, makes it an essential addition to every civil engineering library.
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Modern Control Engineering (Ogata 3rd Edition)
Description: This comprehensive treatment of the analysis and design of continuous-time control systems provides a gradual development of control theory—and shows how to solve all computational problems with MATLAB. It avoids highly mathematical arguments, and features an abundance of examples and worked problems throughout the book. Chapter topics include the Laplace transform; mathematical modeling of mechanical systems, electrical systems, fluid systems, and thermal systems; transient and steady-state-response analyses, root-locus analysis and control systems design by the root-locus method; frequency-response analysis and control systems design by the frequency-response; two-degrees-of-freedom control; state space analysis of control systems and design of control systems in state space.
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Or
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Strength of Materials: Timoshenko (Part I & II)
Strength of Materials - Part. 2: Advanced Theory and Problems contains the later developments that are of practical importance in the fields of strength of materials, and theory of elasticity. Complete derivations of problems of practical interest are given in most cases.
The books are illustrated with a number of problems to which solutions are presented. In many cases, the problems are chosen so as to widen the field covered by the text and to illustrate the application of the theory in the solution of design problem
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Heat Transfer by Holman
Description: Building on its tradition of clarity and numerous examples and problem sets, this new edition of "Heat Transfer" also recognizes the trend toward design and includes the use of computers to assist students in problem solving.
Holman's book is very good. Despite the minimal errors, his approach is very technical and well constructed. There is extensive coverage of mathematical derivations which make it very versatile for the comprehensive engineering analysis. Recommended for beginning Heat Transfer students or as a handy reference.
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Materials Science and Engineering: An Introduction 7e
Description:
Author: William D. Callister Jr.
Building on the extraordinary success of six best-selling editions, Bill Callister's new Seventh Edition of MATERIALS SCIENCE AND ENGINEERING: AN INTRODUCTION continues to promote student understanding of the three primary types of materials (metals, ceramics, and polymers) and composites, as well as the relationships that exist between the structural elements of materials and their properties.
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Solution Manual
Automatic Control Systems: Benjamin C. Kuo
Description: Publisher: Wiley | Pages: 378 | PDF | Size: 8 MB | Edition: 8th
Automatic Control Systems provides engineers with a fresh new controls book that places special emphasis on mechatronics. It follows a revolutionary approach by actually including a physical lab. In addition, readers will find authoritative coverage of modern design tools and examples. Current mechatronics applications build motivation to learn the material. Extensive use of virtual lab software is also integrated throughout the chapters. Engineers will gain a strong understand of control systems with the help of modern examples and exercises.
Link 1 Or Link 2 Or Link 3 Or Link 4
Fundamentals of Heat and Mass Transfer
The 6th Edition introduces coauthors Ted Bergman and Adrienne Lavine, who bring their record of success in teaching and research in heat and mass transfer to the text.
New Features:
Expanded coverage of areas of recent interest in heat transfer, including fuel cells and alternative energy devices, electronics cooling, micro-scale heat transfer, and biological as well as bioheat transfer. New examples and homework problems are included for each area.
Introduction to the concepts of nano-scale transport and unified treatment of transient conduction.
New material on two-phase heat transfer and enhanced internal forced convection.
New and revised presentation of mass transfer including applications in materials science and biological engineering.
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Building Heat Transfer
Description: Authors: Morris Grenfell Davies | Wiley | PDF | 524 pages
A third or more of the energy consumption of industrialized countries is expended on creating acceptable thermal and lighting conditions in buildings. As a result, building heat transfer is keenly important to the design of buildings, and the resulting analytical theory forms the basis of most design procedures. Analytical Theory of Building Heat Transfer is the first comprehensive reference of its kind, a one-volume compilation of current findings on heat transfer relating to the thermal behavior of buildings, forming a logical basis for current design procedures.
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Computer-Aided Design, Engineering, and Manufacturing: Systems Techniques and Applications (Seven Volume Set)
Vol. 1: Systems Techniques and Computional Methods
ISBN: 084930993X | CRC Press, 2001 | pdf | 368 pgs
Vol._1.rar (17.01 Mb)
Vol. 2: Computer Integrated Manufacturing
ISBN: 0849309948 | CRC Press, 2001 | pdf | 320 pgs
Vol._2.rar (9.81 Mb)
Vol. 3: Operational Methods in Computer-Aided Design
ISBN: 0849309956 | CRC Press, 2001 | pdf | 360 pgs
Vol._3.rar (10.06 Mb)
Vol. 4: Optimization Methods for Manufacturing
ISBN: 0849309964 | CRC Press, 2001 | pdf | 312 pgs
Vol._4.rar (11.10 Mb)
Vol. 5: Design of Manufacturing Systems
ISBN:0849309972 | CRC Press, 2001 | pdf | 312 pgs
Vol._5.rar (7.02 Mb)
Vol. 6: Manufacturing Systems Processes
ISBN: 0849309980 | CRC Press, 2001 | pdf | 272 pgs
Vol._6.rar (10.26 Mb)
Vol. 7: Artificial Intelligence and Robotics in Manufacturing
ISBN: 0849309999 | CRC Press, 2001 | pdf | 304 pgs
Vol._7.rar (11.99 Mb)
SCHAUM's Theory and Problems of Electric Circuits 4th Ed.
Description:
Author: Mahmood Nahvi, Joseph A. Edminister
This new edition of Schaum's Outline Series of Theory and Problems of Electric Circuits give readers a thorough foundation in the theory and operation of electric circuits. This best selling outline combines brief descriptions of theory with illustrative examples, solved problems, and supplement problems to provide a direct and effective tool and methodology for learning.
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Electric Machinery: Fitzgerald
Several new chapters have been added, including a chapter on power electronics, as well as one on speed and torque control of dc and ac motors. This edition has also been expanded with additional examples and practice problems. The use of MATLAB has been introduced to the new edition, both in examples within the text as well as in the chapter problems.
Link 1 or Link 2 Or Link 3 Or Link 4
Solution manual : Link 1 Or Link 2
Electronic Materials Science
1.8 Electronic Properties and Devices.
1.9 Electronic Materials Science.
2 Structure of Solids.
2.1 Introduction.
2.2 Order.
2.3 The Lattice.
2.4 Crystal Structure.
2.5 Notation.
2.6 Lattice Geometry.
2.7 The Wigner-Seitz Cell.
2.8 Crystal Structures.
Related Reading.
Exercises.
3 Diffraction.
3.1 Introduction.
3.2 Phase Difference and Bragg’s Law.
3.3 The Scattering Problem.
3.4 Reciprocal Space, RESP.
3.5 Diffraction Techniques.
3.6 Wave Vector Representation.
Related Reading.
Exercises.
4 Defects in Solids.
4.1 Introduction.
4.2 Why Do Defects Form?
4.3 Point Defects.
4.4 The Statistics of Point Defects.
4.5 Line Defects—Dislocations.
4.6 Planar Defects.
4.7 Three-Dimensional Defects.
Related Reading.
Exercises.
5 Diffusion in Solids.
5.1 Introduction to Diffusion Equations.
5.2 Atomistic Theory of Diffusion: Fick’s Laws and a Theory for the Diffusion Construct D.
5.3 Random Walk Problem.
5.4 Other Mass Transport Mechanisms.
5.5 Mathematics of Diffusion.
Related Reading.
Exercises.
6 Phase Equilibria.
6.1 Introduction.
6.2 The Gibbs Phase Rule.
6.3 Nucleation and Growth of Phases.
Related Reading.
Exercises.
7 Mechanical Properties of Solids—Elasticity.
7.1 Introduction.
7.2 Elasticity Relationships.
7.3 An Analysis of Stress by the Equation of Motion.
7.4 Hooke’s Law for Pure Dilatation and Pure Shear.
7.5 Poisson’s Ratio.
7.6 Relationships Among E, e, and v.
7.7 Relationships Among E, G, and n.
7.8 Resolving the Normal Forces.
Related Reading.
Exercises.
8 Mechanical Properties of Solids—Plasticity.
8.1 Introduction.
8.2 Plasticity Observations.
8.3 Role of Dislocations.
8.4 Deformation of Noncrystalline Materials.
Related Reading.
Exercises.
9 Electronic Structure of Solids.
9.1 Introduction.
9.2 Waves, Electrons, and the Wave Function.
9.3 Quantum Mechanics.
9.4 Electron Energy Band Representations.
9.5 Real Energy Band Structures.
9.6 Other Aspects of Electron Energy Band Structure.
Related Reading.
Exercises.
10 Electronic Properties of Materials.
10.1 Introduction.
10.2 Occupation of Electronic States.
10.3 Position of the Fermi Energy.
10.4 Electronic Properties of Metals: Conduction and Superconductivity.
10.5 Semiconductors.
10.6 Electrical Behavior of Organic Materials.
Related Reading.
Exercises.
11 Junctions and Devices and the Nanoscale.
11.1 Introduction.
11.2 Junctions.
11.3 Selected Devices.
11.4 Nanostructures and Nanodevices.
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JavaScript Bible, Gold Edition
Description: The JavaScript Bible, Gold Edition covers the new powerful functionality JavaScript gains with the release of the new fifth generation revisions of Internet Explorer and Netscape Communicator. The book includes all the great content included in the JavaScript Bible, 4th Edition, an international bestseller, plus over 400 pages of new material. The Gold Bible features essential new JavaScript information, additional ready -to-use JavaScript applications and scores of additional JavaScript and Web page routines. This book will bring programmers and non-technical professionals, including casual programmers and scripters, painlessly up to speed on all aspects of mastering JavaScript. Key topics include programming fundamentals, JavaScript language elements and how to use them effectively, and how to easily and efficiently add powerful new functionality to HTML documents and Java applets.
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Beginning JavaScript, 3rd Edition (Wrox)
Description: JavaScript is a scripting language that enables you to enhance static web applications by providing dynamic, personalized, and interactive content. This improves the experience of visitors to your site and makes it more likely that they will visit again. You must have seen the flashy drop-down menus, moving text, and changing content that are now widespread on web sites—they are enabled through JavaScript. Supported by all the major browsers, JavaScript is the language of choice on the Web. It can even be used outside web applications—to automate administrative tasks, for example.
This book aims to teach you all you need to know to start experimenting with JavaScript: what it is, how it works, and what you can do with it. Starting from the basic syntax, you'll move on to learn how to create powerful web applications. Don't worry if you've never programmed before—this book will teach you all you need to know, step by step. You'll find that JavaScript can be a great introduction to the world of programming: with the knowledge and understanding that you'll gain from this book, you'll be able to move on to learn newer and more advanced technologies in the world of computing.
In order to get the most out of this book, you'll need to have an understanding of HTML and how to create a static web page. You don't need to have any programming experience.
This book will also suit you if you have some programming experience already, and would like to turn your hand to web programming. You will know a fair amount about computing concepts, but maybe not as much about web technologies.
Alternatively, you may have a design background and know relatively little about the Web and computing concepts. For you, JavaScript will be a cheap and relatively easy introduction to the world of programming and web application development.
Whoever you are, we hope that this book lives up to your expectations.
You'll begin by looking at exactly what JavaScript is, and taking your first steps with the underlying language and syntax. You'll learn all the fundamental programming concepts, including data and data types, and structuring your code to make decisions in your programs or to loop over the same piece of code many times.
Once you're comfortable with the basics, you'll move on to one of the key ideas in JavaScript—the object. You'll learn how to take advantage of the objects that are native to the JavaScript language, such as dates and strings, and find out how these objects enable you to manage complex data and simplify your programs. Next, you'll see how you can use JavaScript to manipulate objects made available to you in the browser, such as forms, windows, and other controls. Using this knowledge, you can start to create truly professional-looking applications that enable you to interact with the user.
Long pieces of code are very hard to get right every time—even for the experienced programmer—and JavaScript code is no exception. You look at common syntax and logical errors, how you can spot them, and how to use the Microsoft Script Debugger to aid you with this task. Also, you need to examine how to handle the errors that slip through the net, and ensure that these do not detract from the experience of the end user of your application.
From here, you'll move on to more advanced topics, such as using cookies and jazzing up your web pages with dynamic HTML and XML. Finally, you'll be looking at a relatively new and exciting technology, remote scripting. This allows your JavaScript in a HTML page to communicate directly with a server, and useful for, say, looking up information on a database sitting on your server. If you have the Google toolbar you'll have seen something like this in action already. When you type a search word in the Google toolbar, it comes up with suggestions, which it gets via the Google search database.
All the new concepts introduced in this book will be illustrated with practical examples, which enable you to experiment with JavaScript and build on the theory that you have just learned. The appendix provides solutions to the exercises included at the end of most chapters throughout the book.
During the first half of the book, you'll also be building up a more complex sample application—an online trivia quiz—which will show you how JavaScript is used in action in a real-world situation.
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jQuery in Action
Description:
Author: Bear Bibeault , Yehuda Katz John Resig
A good web development framework anticipates what you need to do and makes those tasks easier and more efficient; jQuery practically reads your mind. Developers of every stripe-hobbyists and professionals alike-fall in love with jQuery the minute they've reduced 20 lines of clunky JavaScript into three lines of elegant, readable code. This new, concise JavaScript library radically simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages.
jQuery in Action, like jQuery itself, is a concise tool designed to make you a more efficient and effective web developer. In a short 300 pages, this book introduces you to the jQuery programming model and guides you through the major features and techniques you'll need to be productive immediately. The book anchors each new concept in the tasks you'll tackle in day-to-day web development and offers unique lab pages where you immediately put your jQuery knowledge to work.
There are dozens of JavaScript libraries available now, with major companies like Google, Yahoo and AOL open-sourcing their in-house tools. This book shows you how jQuery stacks up against other libraries and helps you navigate interaction with other tools and frameworks.
jQuery in Action offers a rich investigation of the up-and-coming jQuery library for client-side JavaScript. This book covers all major features and capabilities in a manner focused on getting the reader up and running with jQuery from the very first sections. Web Developers reading this book will gain a deep understanding of how to use jQuery to simplify their pages and lives, as well as learn the philosophy behind writing jQuery-enhanced pages.
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