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Frequently Asked IES EC Exam Pattern, IES EC Questions with Answers

(#M40019781) IES EC QUESTION Computer(2008 paper-2 obj) Keep an EYE

Q. If 8085 adds 87 H 79 H, then

Option
a) both CARRY and ZERO flags will be set to 0
b) CARRY flag will set to 0, Zero flag to 1
c) CARRY flag will be set to 1, ZERO flag to 0
d) Both CARRY and ZERO flags will be set to 1

Asked In IES EC Chandni Maurya (10 years ago)

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(#M40019787) IES EC QUESTION Digital(2008 paper-2 obj) Keep an EYE

Q. How many bits will a D/A converter use so that its full-scale output voltage is 5 V mid is resolution is at the most 10 mV?

Option
a) 5
b) 7
c) 9
d) 11

Asked In IES EC Chandni Maurya (10 years ago)

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(#M40019789) IES EC QUESTION Microwave(2008 paper-2 obj) Keep an EYE

Q. TEM wave cannot propagate in which one of the following?

Option
a. Two wire transmission line
b. Coaxial cable
c. Rectangular wave guide
d. Micro-strip line

Asked In IES EC Chandni Maurya (10 years ago)

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(#M40031880) IES EC QUESTION computer engg(2006 paper-2 obj) Keep an EYE

Q. Which of the following instructions of an 8086 microprocessor uses the contents of a CX register as a counter?
1. LOCK
2. LOOP
3. ROTATE
Select the correct answer using the codes given below:
a. Only 1 and 2
b. Only 1 and 3
c. Only 2 and 3
d. 1, 2 and 3

Asked In IES EC Chandni Maurya (9 years ago)

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(#M40031878) IES EC QUESTION computer engg(2006 paper-2 obj) Keep an EYE

Q. What is the Gray code word for the binary number 101011?
a. 101011
b. 110101
c. 011111
d. 111110

Asked In IES EC Chandni Maurya (9 years ago)

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(#M40031869) IES EC QUESTION Instrument (2006 paper-1 obj) Keep an EYE

Q. The sine wave output of a function generator is fed to both the horizontal (X)and vertical (Y) inputs of a CR0. What will be the pattern on the cathode ray screen?
a. A circle
b. An ellipse
c. A straight line with 45° slope
d. Sinusoidal

Asked In IES EC Chandni Maurya (9 years ago)

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(#M40031881) IES EC QUESTION computer engg(2006 paper-2 obj) Keep an EYE

Q. Which block replacement algorithm is not generally used in cache operation?
a. LIFO
b. FIFO
c. LRU
d. Random

Asked In IES EC Chandni Maurya (9 years ago)

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(#M40019782) IES EC QUESTION Analog Ckt(2008 paper-2 obj) Keep an EYE

Q. For a BJT, early voltage VA is 100 V. In common emitter configuration , eqiescent VCE is 10 V. what percentage change in quiescent IC would occur, if early voltage VA is made infinite?

Option
a. 10%
b. 20%
c. 5%
d. 0%

Asked In IES EC Chandni Maurya (10 years ago)

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(#M40019775) IES EC QUESTION Network T (2008 paper-1 obj) Keep an EYE

Match List I and List II and select the correct answer using the code given below the lists:
List-I
(Theorem/Law)
A. Norton's theorem
B. Superposition theorem
C. Thevenin's theorem
D. Kirchhoff's current law
List II
(Property)
1. Effect of independent sources in a linear circuit are additive
2. Law of non-accumulation of change holds good at nodes
3. Current source with shunt resistor
4. Voltage source with series resistor
Code:
A B C D
a. 2 4 1 3
b. 3 1 4 2
c. 2 1 4 3
d. 3 4 1 2

Asked In IES EC Chandni Maurya (10 years ago)

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(#M40031870) IES EC QUESTION Signal & system (2006 paper-1 obj) Keep an EYE

Q. The impulse response of a system h(n) = a^n u(n). What is the condition for the system to be BIBO stable?

a. a is real and positive
b. a is real and negative
c. | a | > 1
d. | a | < I

Asked In IES EC Chandni Maurya (9 years ago)

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