Digital Electronics - Code Converters and Multiplexers

Exercise :: Code Converters and Multiplexers - General Questions

6. 

What is the function of an enable input on a multiplexer chip?

A. to apply Vcc
B. to connect ground
C. to active the entire chip
D. to active one half of the chip

Answer: Option C

Explanation:

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7. 

The expansion inputs to a comparator are used for expansion to a(n):

A. 4-bit system
B. 8-bit system
C. BCD system
D. counter system

Answer: Option B

Explanation:

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8. 

What do the mathematical symbols A < b and A > B mean?

A. A < B means A is greater than B. A > B means A is less than B.
B. A > B means A is less than B. A < B means A is greater than B.
C. A < B means A is less than B. A > B means A is greater than B.

Answer: Option C

Explanation:

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9. 

A basic multiplexer principle can be demonstrated through the use of a:

A. single-pole relay
B. DPDT switch
C. rotary switch
D. linear stepper

Answer: Option C

Explanation:

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10. 

How many inputs will a decimal-to-BCD encoder have?

A. 4
B. 8
C. 10
D. 16

Answer: Option C

Explanation:

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