Digital Electronics - Digital Concepts

Exercise :: Digital Concepts - General Questions

41. 

How many binary bits are necessary to represent 748 different numbers?

A. 9
B. 7
C. 10
D. 8

Answer: Option C

Explanation:

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42. 

A periodic digital waveform has a pulse width (tw) of 6 ms and a period (T) of 18 ms. The duty cycle is ________.

A. 3.3%
B. 33.3%
C. 6%
D. 18%

Answer: Option B

Explanation:

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43. 

Any number with an exponent of one is equal to:

A. zero.
B. one.
C. two.
D. that number.

Answer: Option D

Explanation:

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44. 

Serial format means digital signals are:

A. sent over many conductors simultaneously.
B. sent over one conductor sequentially.
C. sent in groups of eight signals.
D. sent in binary coded decimal.

Answer: Option B

Explanation:

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45. 

What is the decimal value of 2–1 ?

A. 0.5
B. 0.25
C. 0.05
D. 0.1

Answer: Option A

Explanation:

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