Digital Arithmetic Operations and Circuits - General Questions (4)

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Digital Arithmetic Operations and Circuits - General Questions

25.

The selector inputs to an arithmetic/logic unit (ALU) determine the:

A.	selection of the IC
B.	arithmetic or logic function
C.	data word selection
D.	clock frequency to be used

Answer: Option B

Explanation:

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26.

How many BCD adders would be required to add the numbers 973₁₀ + 39₁₀?

A.	3
B.	4
C.	5
D.	6

Answer: Option A

Explanation:

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27.

When multiplying 13 × 11 in binary, what is the third partial product?

A.	1011
B.	00000000
C.	100000
D.	100001

Answer: Option B

Explanation:

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28.

Convert the decimal numbers 275 and 965 to binary-coded decimal (BCD) and add. Select the BCD code groups that reflect the final answer.

A.	1101 1110 1010
B.	1110 1010 1110
C.	0001 0010 0100 0000
D.	0010 0011 0100 0000

Answer: Option C

Explanation:

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29.

Divide the following binary numbers.

mcq7_1008_2

A.	0000 0010 0000 0010 1000 1111
B.	0000 0010 0001 0010 0000 0100
C.	0000 0011 0000 0010 0000 0100
D.	0000 0010 0000 0010 0000 0100

Answer: Option D

Explanation:

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30.

Solve this binary problem: 01000110 ÷ 00001010 =

A.	0111
B.	10011
C.	1001
D.	0011

Answer: Option A

Explanation:

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31.

What is one disadvantage of the ripple-carry adder?

A.	The interconnections are more complex.
B.	More stages are required to a full adder.
C.	It is slow due to propagation time.
D.	All of the above.

Answer: Option C

Explanation:

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32.

Convert each of the signed decimal numbers to an 8-bit signed binary number (two's-complement).
+7 –3 –12

A.	0000 0111 1111 1101 1111 0100
B.	1000 0111 0111 1101 0111 0100
C.	0000 0111 0000 0011 0000 1100
D.	0000 0111 1000 0011 1000 1100

Answer: Option A

Explanation:

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Digital Arithmetic Operations and Circuits - General Questions (4)

Digital Arithmetic Operations and Circuits - General Questions

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