Electronics and Communication Engineering - Digital Electronics

46. 

A digital clock uses __________ chip

A. SSI
B. LSI
C. VLSI
D. MSI

Answer: Option B

Explanation:

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47. 

The contents of stack location 2109 H after the call operation will be

A. 00001111
B. 01010101
C. 00100000
D. 00100010

Answer: Option C

Explanation:

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48. 

Which of the following conversion is incorrect?

A. 1111101112 = 7678
B. 110110103 = 6658
C. 1011.11112 = 13.748
D. 10101.112 = 26.58

Answer: Option B

Explanation:

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49. 

In a flip-flop with RS latch a high S and a low R set the output to __________ and a low S and a high R set the output __________ .

A. low, low
B. high, high
C. low, high
D. high, low

Answer: Option C

Explanation:

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50. 

For the logic circuit shown in figure, the simplified Boolean expression for the output Y is

A. A + B + C
B. AB
C. B
D. C

Answer: Option B

Explanation:

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