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ISRO Electronics Exam 2017: Weekly Toppers Quiz 2

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Question 1

The 16-bit 2’s complement representation of an integer is 1111 1111 1111 0101; its decimal representation is _________.

Question 2

what is the Minimum number of 2

1 multiplexers required to realize the following function

Assume that inputs are available only in true and Boolean constants 1 and 0 are available.

Question 3

Figure shows a 4 to 1 MUX to be used to implements the sum S os a 1-bit full adder with input bits P and Q and the carry input C_in. Which of the following combinations of inputs to I₀,I₁,I₂ and I₃ of the MUX will realize the sum S?

Question 4

A probability density function on the interval [a, 1] is given by

and outside this interval the value of the function is zero. The value of a is_________.

Question 5

What is the value of the following limit.

Question 6

Consider the following applications in respect of a square corner reflector:
1) Radio astronomy
2) Point-to-point communication
3) TV broadcast
Which of the above application is/are correct?

Question 7

A micro-strip line consists of a single ground plane and thin strip conductor on a

Question 8

Which one of the following is a transferred electron device?

Question 9

For derivative control action, the actuating signal consists of proportional error signal with addition of

Question 10

Consider the following statements regarding optocouplers:
1) Optocouplers are LEDs driving photodiodes in a single package to provide electrical isolation between input and output
2) Optocoupler is LED driving a phototransistor in a single package that replaces pulse transformers working at input zero crossing
3) Optocouplers are used as temporary non-fixed joints between optical fibre terminations Which of the above statements are correct?

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ESE & GATE EC General

Apr 15ESE & GATE EC