Electronics and Communication Engineering - Digital Electronics

31. 

The digit F in hexadecimal system is equivalent to number __________ in decimal system.

A. 16
B. 15
C. 17
D. 8

Answer: Option B

Explanation:

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32. 

In level clocking the output can change

A. on rising edge of clock cycle
B. on falling edge of clock cycle
C. during entire half cycle of the clock
D. none of the above

Answer: Option C

Explanation:

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33. 

Which family of logic circuits uses field effect transistors?

A. TTL
B. CMOS
C. Both LED and well as LCD
D. None of the above

Answer: Option B

Explanation:

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34. 

An encoder converts decimal numbers to binary and other codes.

A. True
B. False

Answer: Option A

Explanation:

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35. 

Examine the following truth table. The product of sum from this truth table is

A. (X + Y) (X + Y)
B. (X + Y) (X + Y)
C. (X + Y) (X + Y)
D. (X + Y) (X + Y)

Answer: Option D

Explanation:

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