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

(#M40031883) IES EC QUESTION computer engg (2006 paper-2 obj) Keep an EYE

Q. Which one of the following registers of 8085 microprocessor is not a part of programming model?
a. Instruction register
b. Memory address register
c. Status register
d. Temporary data register

Asked In IES EC Chandni Maurya (11 years ago)

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(#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 (12 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 (11 years ago)

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(#M40019773) IES EC QUESTION EDC(2008 paper-1 obj) Keep an EYE

Q. In n-channel enhancement MOSFET, at a fixed drain voltage

Option
a) the drain current is maximum at zero gate voltage and it decreases with applied negative gate voltage
b) the drain current has a finite value at zero gate voltage and it increases or decreases with the applied voltage of proper polarity
c) the drain current is zero at zero gate voltage and it increases with the positive applied gate voltage
d) the drain current is zero for negative bias voltage to gate and it increases as negativegate bias is decreased in magnitude

Asked In IES EC Chandni Maurya (12 years ago)

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(#M40019771) IES EC QUESTION Network Theory(2008 paper-1 obj) Keep an EYE

Q. A coil is turned to resonance of 500 kHz with a resonating capacitor of 36 pF. At 250 kHz, the resonance is obtained with resonating capacitors of 160 pF. What is the self capacitance of the coil?

Option
a) 2.66 pF
b) 5.33 pF
c) 8 pF
d) 10.6 pF

Asked In IES EC Chandni Maurya (12 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 (11 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 (12 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 (11 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 (12 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 (12 years ago)

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