Digital Arithmetic Operations and Circuits - General Questions (5)

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Digital Arithmetic Operations and Circuits - General Questions

33.

Which of the following is correct for full adders?

A.	Full adders have the capability of directly adding decimal numbers.
B.	Full adders are used to make half adders.
C.	Full adders are limited to two inputs since there are only two binary digits.
D.	In a parallel full adder, the first stage may be a half adder.

Answer: Option D

Explanation:

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34.

Perform the following hex subtraction: ACE₁₆ – 999₁₆ =

A.	23516
B.	13516
C.	03516
D.	33516

Answer: Option B

Explanation:

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35.

Half-adders can be combined to form a full-adder with no additional gates.

A.	True
B.	False

Answer: Option B

Explanation:

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36.

Solve this binary problem:

mcq6_1024_1

A.	1001
B.	0110
C.	0111
D.	0101

Answer: Option C

Explanation:

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37.

What distinguishes the look-ahead-carry adder?

A.	It is slower than the ripple-carry adder.
B.	It is easier to implement logically than a full adder.
C.	It is faster than a ripple-carry adder. It requires advance knowledge of the final answer.
D.	It requires advance knowledge of the final answer.

Answer: Option C

Explanation:

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38.

Solve this binary problem: 01110010 – 01001000 =

A.	00011010
B.	00101010
C.	01110010
D.	00111100

Answer: Option B

Explanation:

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39.

Determine the two's-complement of each binary number.
00110 00011 11101

A.	11001 11100 00010
B.	00111 00010 00010
C.	00110 00011 11101
D.	11010 11101 00011

Answer: Option D

Explanation:

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40.

mcq6_1007_1

A.	10011110
B.	01211110
C.	000100000100
D.	001000001000

Answer: Option C

Explanation:

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Digital Arithmetic Operations and Circuits - General Questions (5)

Digital Arithmetic Operations and Circuits - General Questions

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