Electronics and Communication Engineering - Digital Electronics

11. 

A clock signal coordinates the working of different flip flops.

A. True
B. False

Answer: Option A

Explanation:

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12. 

In 8085, usually the vector location and the next two memory location contain a JMP instruction. This allows the programs to branch to

A. a longer subroutine
B. a shorter subroutine
C. a subroutine free path
D. none of the above

Answer: Option A

Explanation:

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13. 

In which of these does thermionic emission occur?

A. LED
B. LCD
C. VF display
D. None

Answer: Option C

Explanation:

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14. 

In a positive-edge-triggered JK flip-flop, a low J and a low K produce __________ state. A high __________ on the rising edge of the clock.

A. inactive, reset
B. active, reset
C. active, toggle
D. inactive, toggle

Answer: Option D

Explanation:

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15. 

The rate of change of digital signals between High and Low level is

A. very fast
B. fast
C. slow
D. very slow

Answer: Option A

Explanation:

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