ECIL Graduate Trainee Exam Previous year Question Papers

Please provide me question paper for ECIL Electronics Corporation of India Ltd Graduate Trainee examination ?

Here I am giving you question paper for ECIL Electronics Corporation of India Ltd Graduate Trainee examination..

1. The length of transmitting antenna should be comparable with ……..
of the signal to be transmitted.
(a) λ
(b) λ/2
(c) 2 λ
(d) λ/4

2. Unregulated dc power supply is not in need of
a) Diode
b) Transformer,
c) Zener diode
d) filter

3. The eigen values of a skew-symmetric matrix are
(A) always zero
(B) always pure imaginary
(C) either zero or pure imaginary
(D) always real

4. For the two-port network shown below,
the short-circuit admittance parameter matrix is
Ans :: A

5. At room temperature, a possible value for the mobility of electrons in the
inversion layer of a silicon n-channel MOSFET is
(A) 450 cm2/V-s
(B) 1350 cm2/V-s
(C) 1800 cm2/V-s
(D) 3600 cm2/V-s

6. For parallel RLC circuit, which one of the following statements is NOT correct?
(A) The bandwidth of the circuit deceases if R is increased
(B) The bandwidth of the circuit remains same if L is increased
(C) At resonance, input impedance is a real quantity
(D) At resonance, the magnitude of input impedance attains its minimum value.

7. For the output F to be 1 in the logic circuit shown, the input combination should be

(A) A = 1, B= 1. C = 0
(B) A = 1, B= 0,C = 0
(C) A = 0, B= 1. C = 0
(D) A = 0, B= 0, C = 1

8. The impurity commonly used for realizing the base region of a silicon n-p-n
transistor is
(a) Gallium
(b) Indium
(c) Boron
(d) Phosphorus

9. An ideal op-amp is an ideal
(a) voltage controlled current source
(b) voltage controlled voltage source
(c) current controlled current source
(d) current controlled voltage source

10. Voltage series feedback (also called series shunt feedback) results in
(a) increase in both input and output impedance
(b) decrease in both input and output impedance
(c) increase in input impedance and decrease in output impedance
(d) decrease in input impedance and increase in output impedance

11. The Fourier transform of a conjugate symmetric function is always
(a) imaginary
(b) conjugate anti-symmetric
(c) real
(d) conjugate symmetric

12. An AM signal and a narrow-band FM signal with identical carriers, modulating
signals and modulation indices of 0.1 are added together. The resultant signal
can be closely approximated by
(a) broadband FM
(b) SSB with carrier
(c) DSB-SC
(d) SSB without carrier

13. Consider a lossless antenna with a directive gain of +6db. If 1mW of power is fed
to it the total power radiated by the antenna will be
(a) 4mW
(b) 1mW
(c) 7mW
(d) 1/4mW

14. The minimum number of flip-flops required to construct a mod-75 counter is
(A) 5 (B) 6 (C) 7 (D) 8

15. A ‘literal’ in Boolean Algebra means
(A) a variable inn its uncomplemented form only
(B) a variable ORed with its complement
(C) a variable in its complemented form only
(D) a variable in its complemented or uncomplemented form

16. The number of control lines for a 8 – to – 1 multiplexer is
(A) 2 (B) 3 (C) 4 (D) 5

17. The 8085 assembly language instruction that stores the content of H and L registers into the memory locations 2050H and 2051H, respectively, is
A) SPHL 2050H
B) SPHL2051H
C) SHLD 2050H
D) STAX 2050H

18. The insulation strength of an EHV transmission line is mainly governed by
A) load power factor B) switching over-voltages C) harmonics D) corona

19. For the equation, s3 – 4s2+ s + 6 = 0 the number of roots in the left half of s-plane will be
A) 0 B) 1 C) 2 D) 3

20. In a DMA write operation the data is transferred
(A) from I/O to memory.
(B) from memory to I/O.
(C) from memory to memory.
(D) from I/O to I/O.

21. Pseudo instructions are basically
(A) false instructions.
(B) instructions that are ignored by the microprocessor.
(C) assembler directives.
(D) instructions that are treated like comments.

22. What will be the contents of register AL after the following has been executed
MOV BL, 8C
MOV AL, 7E
ADD AL, BL
(A) 0A and carry flag is set
(B) 0A and carry flag is reset
(C) 6A and carry flag is set
(D) 6A and carry flag is reset

23. The most commonly used amplifier in sample & hold circuits is
a) A unity gain non-inverting amplifier
b) A unity gain inverting amplifier
c) An inverting amplifier with a gain of 10
d) An inverting amplifiers with a gain of 100

24. If the Laplace transform of f (t ) is (w/(s2+w2),) then the value of Lim f (t ),where t tends to infinity
(A) cannot be determined.
(B) is zero.
(C) is unity.
(D) is infinity

25. The auto-correlation function of a rectangular pulse of duration T is
(A) a rectangular pulse of duration T.
(B) a rectangular pulse of duration 2T.
(C) a triangular pulse of duration T.
(D) a triangular pulse of duration 2T.

Which turbine used for low head (kaplan, pelton etc.)

* Two x-mer a & b have 50hz and 400hz frequency. Which is big a or b

* What is the use of ready signal in 8085 up

* Two lamp connected in series than total power drawn?

* What is unit of flux density?

* What is the ratio of magnetic field intensity to flux density?

* One question from synchronous motor

* Calculate Rth of given ckt?

* Two questions from thevnin theorem

* What is use of MOV?

* Calculate the frequency of parallel Resonance ckt?

* One question from OPAM (calculate o/p voltage)?

* Calculate load current of Bridge rectifier?

* One program on C?

* Which diode made by metal& semiconductor?

* Which sensor not used for measurement of wight? (capacitor, strain gauge, piezoelectric)

* Which GATE used as a Comparator( OR, AND, EX-OR, None of these)

* One question from Lagging-leading?

* Calculate the Laplace of te^-at?

* Given a characteristics equation of stable system find value of a?

* When we used a negative feed back in Oscillator?

* Which is used for amplification purpose (Ans. Transistor)

* In CE configuration why Capacitor used parallel with resistor of emitter?

* If sin i/p is given in vertical plate of CRO and nothing on horizontal what will happen?

* Calculate the Time constant of RC ckt

* If sinusoidal ip is given to schimit trigger what will be output?

* Calculate the RMS value of given voltage?

* Filter roll off characteristics on the basis of active/passive, order, type of components?

(1 )"Bit Stuffing" is used for?
a. Code transparency
b. Synchronization between sender and receiver
c. Data Compression
d. Data Encryption

(2) If inorder traversal of a binary tree is EACKFDBG, what will be its preorder travesal?


(3)Consider the program


main()
{
int x=3, y=7;
modify(x,x,y);
print x;
print y;
}


modify( int x, int y, int z)
{
y= y*2;
z=x+y+z;
}
What will be the output of the program if the arguments are passed to modify through call by reference?



(4) Calculate the Hamming Distance between 010 and 001:
a. 0
b. 1
c. 2
d. 3


(5)Which of the following is the correct syntax of destructor?
a. x()~
b.x~()
c. x(~)
d.~x()


(6) How many times the "for" loop in given code fragment will be executed?


main()
{
int i=5;
for( ; scanf("%s", &i ; printf( "%d", i ));
}


a. for loop never will be executed.
b. for loop will be executed only once.
c. for loop will be executed 5 times
d. for loop will be executed infinite times.




(7)Which among the following can input / delete data from both ends , not from the middle?
a. stack
b. linked list
c. queue
d. dequeue




(8)Which among the following involved full code?
a. Black box Test
b. White box Test
c. Integration Test
d. Performance Test


(9)What is aliasing?
a. Giving same name to different type of variables.
b. Giving same name for same type of variables.
c. Giving different names for same type of variables
d. Giving different names for same memory location.


(10)float x=4.204 , y=2.103
We can calculate x mod y as:


a. x%y
b. modf(x,y);
c. fmod (x,y);
d. we cannot calculate modulus of two float values in C


(11)The type of class accessing primitive datatypes as objects is called?
a. storage
b. friend
c. virtual
d. wrapper


(12)Which pin is used in 8086 to achieve Mutual exclusion in critical section ?
a. HOLD
b. WAIT
c. RQ/GT
d. LOCK


(13)Which the following operator is used to turn off a particular bit in a byte?
a. ~
b. &&
c. &
d. !


(14) Which among the following correctly explains behavior of a stack?
a. Last element is removed first.
b. Access middle element first
c. Variables can be inserted in any order.
d. variables can be deleted in any order.


(15)Which of the following protocol is used for secure data transfer?
a. HTTP
b. SNMP
c. HTTPS
d. TCP


(16) Which of the folowing is NOT related with inter process communication?
a. pipe
b. semaphore
c. stack
d. mailbox


(17)What is the size of "long double"?


(18)What will be the value of FFFF it is a signed integer and is represented by sign magnitude format ?
a. 655536
b. -1
c. -32267
d. 32267


(19) What is the meaning of int (*ptr)[10]
a. pointer to an array of 10 integers.
b. pointer to 10 integer variables
c. array of 10 integer pointers.
d. Array of 10 integers.


(20) In Go - Back Error control mechanism , after sending N frames, at most how many acknowledgements can be send by the receiver?
a. 0
b. 1
c. N
d. N-1


(21)In a balanced binary tree of N nodes , the difference between left subtree and right subtree will be at most:


a.0
b. 1
c. 2
d. N




(22) Predict the output


main()
{
enum example={ "first", " bin", "akt"};
enum example s1, s2 ,s3;
s1= example.first;
s2= example. akt;
s3= example.bin;
printf("%d %d%d", s1, s2 ,s3);
}


a. 012
b.210
c.021
d.120




(23)Which of the following is NOt true about RS 485?


(24)Which of the following represented by the term Base FX?
a. Thin wire Ethernet
b. Thick wire Ethernet
c. Twisted pair Ethernet
d. Optical Fiber


(25)Which of the following is NOT related with Transport Layer?
a. error control
b. flow control
c. routing


(26)If in a given cache system, 99.99% is the hit ratio ,and the processing time for hit and miss events are 1 microseconds amd 1 milliseconds respectively, the calculate the average processing time?




(27)If 192.97.28.91 and 192.97.28.131 are connected in same network, then which of the following cannot be used for subnet masking?


a. 255.255.255.0
b. 255.255.255.192
c. 255.255.255.126
d. 255.255.255. 224


(28) Which of the following is the property of bipartite graphs of N nodes?
a. There will be N edges
b. There will be only one odd cycle.
c. There will be No odd cycle
d. There will be N^2 Edges.


(29)Which among the following is the statement for dynamic allocation of characters?
Ans: char *p= (char *) malloc[20];


(30) Float to integer conversion is perfectly done in which statement?
float x;
Ans : int i=(int)(x+0.5)






(31)Which is true about "isotopes"?
a. Number of protons is equal
b. Number of neutrons is equal
c. Number of protons is different
d. Number of both protons and neutrons are equal.

(32)Which operator is used to declare member functions outside the class body?
Ans ::


(33)The member elements can be accessed by the pointer variable of a structure using the operator?
Ans: ->


(34)In UML notation which diagram is used to depict the interaction between software and hardware?
Ans: Deployment Diagram


(35)In 8085, ALE signal is used. but it is not is 6086. Why?
a. In 8085 multiplexing is used for communication but not in 6086
b. In 8085 only IO mapped IO is used whereas in 6086 only memory mapped IO is used.




(36)If the given sampling frequency is 10 MHz , then for successful transmission bandwidth should be?
a. 5 MHz
b. 10 MHz
c. 20 MHz
d. 100 M Hz


(37)What is the use of "segmentation" in a computer system?

(38) In CSMA/ CD, vulnerable time may be:
a. Round trip time.
b. Time to transmit one complete frame
c. Time to transmit two complete frames
d.Time to reach at the destination.




(39)Which among the following is Non - Linear?
a. Low pass filter
b. Rectifier.
c. High pass filter
d. All the above




(40)What is the purpose of Rectifier?
a. To convert DC to AC
b. To convert AC to DC
c. To eliminate Noise.
d. To eliminate DC component.

(41)Associative memory mapping is free from
a. conflict collision
b. capacity collision


(42) Address length of IPV4 and IPV6?
Ans: 4 bytes, 16 bytes




(43) In selection sort, after 42 successful iteration of main loop , at least how many elements will be sorted?


a. 41
b. 42
c. 21
d. 43


(44).Which one of the following is a hashing algorithm?
a)SHA
b)AES
c)DES


(45). Aggregate function to count number of rows?

(46). Diagrams to represent Relational database?


(47) what is crc in error control mechanism?


a) dividend
b) remainder
c) divisor
d) quotient

1. (B) Bit stuffing is the addition of a small number of binary digits to a transmission unit in order to fill it up to a standard size.The receiver knows how to detect and neglect the stuffed bits. Thus, it is used to provide synchronization.


3. Since pass by reference is used, After executing,y= y*2; actual values will be x=3, y=14
After this step z=x+y+z; x=3 and y=31
so 3 31 will be printed.

4 (c) The Hamming Distance is a number used to denote the difference between two binary strings. In the given question difference can be found in 2 positions only. Hence 2 is the hamming distance.

5. (d) ~x() the correct syntax of destructor

6. (d) for loop will be executed infinite times.

7. (d). dequeue

9 (d). Giving different names for same memory location.

10 (c) fmod (x,y);


11 (d) Wrapper classes are classes that are used to make primitive variables into objects

12 (d) LOCK


13 (c) & is used. eg: 170 (10101010b) & 207 (11001111b) you will get 138 (10001010)



14 (a) Last element is removed first.



15 (c). HTTPS or HTTP over SSL is a way to encrypt data sent and received over the Web so that sensitive transactions are secure.



16 (c) Stack



18 (c) -32767it's mentioned signed magnitude...ie d first bit (1) is the sign and remaining bits are for magnitude....as first bit is one,it represents negative no...and its value is 2^15-1 (since first bit is denoting sign,remaining 15 bits are denoting magnitude)..and there is nothing mentioned about overflow....the value is -1 iff the no is represented in 2's complement arithmetic...which is not d case...it's clearly mentioned signed magnitude representation....so the ans is -(2^15-1)= -32767

19 (c) array of 10 integer pointers.


20 (b) The form of error control based on sliding window flow control that is most commonly used is called Go-Back-N ARQ. In this scheme, a station may send a series of frames sequentially numbered modulo some maximum value( eg. 7 means 0 to 6 ) determined by the window size. While no errors occur, the destination will acknowledge ( RR, receive ready ) incoming frames as usual. If the destination station detects an error in the frame, it sends a negative acknowldgement ( REJ = reject ) for that frame. The destination station will discard that frame and all future incoming frames until the frame in error is correctly received. Thus the source station, when it receives an REJ must retransmit the frame in error plus all succeeding frames that were transmitted in the interim.


21 (b) balanced binary tree is a binary tree in which the depth of the two subtrees of every node never differ by more than 1.


22 (c) 021

23 --

24(d). Optical Fiber

25 (c). routing

26. 1.099 microsec

27.(b.) 255.255.255.192

28 (c) a bipartite graph is a graph whose vertices can be divided into two disjoint sets U and V such that every edge connects a vertex in U to one in V; that is, U and V are independent sets. Equivalently, a bipartite graph is a graph that does not contain any odd-length cycles.



29 char *p= (char *) malloc[20];



30 Ans : int i=(int)(x+0.5)



31 (a) Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.



32 Ans: :



33 Ans: ->



34 Ans: Deployment Diagram


35 (a) In 8085 multiplexing is used for communication but not in 6086



36 (a)The Nyquist–Shannon sampling theorem states that perfect reconstruction of a signal is possible when the sampling frequency is greater than twice the maximum frequency of the signal being sampled.

Bandwidth = sampling frequency /2= 10/2= 5 MHz



37. Segmentation is used to support Virtual memory system.



38--
39(d) A non linear circuit does not have a linear relationship between current and voltage

40 (b). To convert AC to DC



41 (a) conflict collision

42 Ans: 4 bytes, 16 bytes



43 (b) 42



44 (a)SHA



45. COUNT



46 ER Diagram

47 . b

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Answered By StudyChaCha Member

I am doing preparation of the ECIL Graduate Trainee Exam and looking for the sample and previous year paper of this exam for doing preparation. Will you please provide me the same and also tell me what eligibility required to apply for this exam?

As per your request here I am providing you the ECIL GT exam papers:

ECIL Graduate Trainee Exam Previous year Sample Question Papers








Please find below attachment to download the paper:

Educational Details:

Candidates should be qualify First Class Engineering Degree with minimum 65% marks in aggregate (Second Class with 55% for SC/STs) from AICTE approved Colleges / Recognized Indian Universities in the relevant discipline.

Age Limit:

Applicants age limit must be 35 years for UR, 38 years for OBC & 40 years for SC/ST candidates as on 30th September 2014.

Stipend:

The Selected candidates will be get Rs.33020/- Stipend per month.

Books for doing exam prep:

Guide To NTPC Civil Engineering By Mittal
NTPC/NHPC/IOC/HP- Civil Engg. Guide By RPH Editorial Board
Guide To NTPC Mechanical Engg. By GK Publishers
Guide To NTPC Electrical Engg. By GK Publishers

Attached Files Available for Download

	ECIL GT paper.zip (34.0 KB, 18 views)
	ECIL Graduate Trainee Exam Previous year Sample Question Papers.pdf (13.6 KB, 19 views)

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Answered By StudyChaCha Member