Digital Arithmetic Operations and Circuits - General Questions (8)

Directions to Solve

Digital Arithmetic Operations and Circuits - General Questions

57.

Convert each of the decimal numbers to 8-bit two's-complement form and then perform subtraction by taking the two's-complement and adding.

mcq07_01800

A.	0001 0011
B.	0000 1110
C.	1110 0000
D.	1110 0000

Answer: Option B

Explanation:

1110 0000

58.

The binary subtraction 0 – 0 =

A.	difference = 0 borrow = 0
B.	difference = 1 borrow = 0
C.	difference = 1 borrow = 1
D.	difference = 0 borrow = 1

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

59.

Add the following hex numbers: 0110₁₆ + 10010₁₆

A.	1012016
B.	1002016
C.	1112016
D.	0012016

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

60.

Fast-look-ahead carry circuits found in most 4-bit full-adder circuits:

A.	determine sign and magnitude
B.	reduce propagation delay
C.	add a 1 to complemented inputs
D.	increase ripple delay

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

61.

The decimal value for E₁₆ is:

A.	1210
B.	1310
C.	1410
D.	1510

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

62.

What is the major difference between half-adders and full-adders?

A.	Nothing basically; full-adders are made up of two half-adders.
B.	Full adders can handle double-digit numbers.
C.	Full adders have a carry input capability.
D.	Half adders can handle only single-digit numbers.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

63.

The most commonly used system for representing signed binary numbers is the:

A.	2's-complement system.
B.	1's-complement system.
C.	10's-complement system.
D.	sign-magnitude system.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

64.

The 2's-complement system is to be used to add the signed binary numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.

A.	–113 and –114, –227
B.	–14 and –13, –27
C.	–11 and –16, –27
D.	–27 and –13, –40

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

1
2
3
..
6
..
8
9
10