Electronics and Communication Engineering - Digital Electronics

1. 

In a T flip-flop the output frequency is

A. same as input frequency
B. half of I/p frequency
C. double the input frequency
D. none

Answer: Option B

Explanation:

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2. 

The access time of ROM using bipolar transistors is about

A. 1 sec
B. 1 mili sec
C. 1 μ sec
D. 1 n sec

Answer: Option C

Explanation:

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3. 

In LIFO

A. only the top of the stack is immediately accessible
B. only the top of the stack is never accessible
C. only the first-in is accessible
D. only the first-in is not accessible

Answer: Option A

Explanation:

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4. 

10 in BCD code represent

A. 10100
B. 1100
C. 010111
D. None of the above

Answer: Option D

Explanation:

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5. 

In RAM, all the information can be obtained at the output with

A. minimum time delay
B. unequal time delay
C. nearly identical time delay
D. maximum time delay

Answer: Option C

Explanation:

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