ISRO Scientist or Engineer Electronics 2006

Instructions

For the following questions answer them individually

Question 21

The resolution of a DIA converteris approximately 0.4% ofits full-scale range. It is

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Question 22

In a microprocessor, the resister which holds the address of the next instruction to be fetched is

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Question 23

In microcomputer, WAIT States are used to

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Question 24

Which of the following statements are correct
1. A flip-flop is used to Store 1 bit of information
2. Race-around condition occurs in a J-K flip-flop when both the inputs are 1
3. Master-slave configuration is used in flip-flops to store 2 bits of information
4. A transparent latch consists of a D-type flip-flop

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Question 25

How many 1 ‘s are present in the binary representation of
$$3 \times 512 + 7 \times 64 + 5 \times 8 + 3$$?

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Question 26

For emitter-coupled logic, the Switching speedis very high because

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Question 27

The out put of the circuit shown below is

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Question 28

Gray code for number 7 is

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Question 29

10 bit A/D converters, the quantization error is given by (in percent)

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Question 30

For the switch circuit, taking open as 0 and closed as 1, the expression for the circuit Y.

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