Counters – Exercise – 2

96. Synchronous construction reduces the delay time of a counter to the delay of:

(a) all flip-flops and gates
(b) all flip-flops and gates after a 3 count
(c) a single gate
(d) a single flip-flop and a gate

Answer
Answer : (d)
Explanation
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97. What is meant by parallel load of a counter?

(a) Each FF is loaded with data on a separate clock.
(b) The counter is cleared.
(c)
(d)

Answer
Answer : (c)
Explanation
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98. Why can a synchronous counter operate at a higher frequency than a ripple counter?

(a) The flip-flops change one after the other.
(b) The flip-flops change at the same time.
(c) A synchronous counter cannot operate at higher frequencies.
(d) A ripple counter is faster.

Answer
Answer : (b)
Explanation
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99. ________ counters are often used whenever pulses are to be counted and the results displayed in decimal.

(a) Synchronous
(b) Bean
(c) Decade
(d) BCD

Answer
Answer : (d)
Explanation
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100. Shift-register counters use ________, which means that the output of the last FF in the register is connected back to the first FF in some way.

(a) MOD
(b) feedback
(c) strobing
(d) switchbacks

Answer
Answer : (b)
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