Electronics and Communication Engineering - Digital Electronics

26. 

In 8085 microprocessor, what is the length of Data Buffer Register?

A. 6 bits
B. 8 bits
C. 12 bits
D. 16 bits

Answer: Option B

Explanation:

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27. 

In JK flip flop toggle state exists if

A. J = 0, K = 1
B. J = 1, K = 0
C. J = 0, K = 0
D. J = 1, K = 1

Answer: Option D

Explanation:

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28. 

The binary number 101100.110 in octal number will be

A. 152.6
B. 154.6
C. 145.6
D. 174.6

Answer: Option B

Explanation:

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29. 

Thu advantage of using a dual stop ADC in a digital voltmeter is that

A. its conversion time is small
B. its accuracy high
C. output is in BCD format
D. it does not require a comparator

Answer: Option B

Explanation:

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30. 

Which converters uses integrating op-amp?

A. Parallel A/D converter
B. Single slope A/D converter
C. Dual slope A/D converter
D. Both (b) and (c)

Answer: Option C

Explanation:

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