Digital Arithmetic Operations and Circuits - General Questions (9)

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Digital Arithmetic Operations and Circuits - General Questions

65. 

What are constants in VHDL code?
A. Fixed numbers represented by a name
B. Fixed variables used in functions
C. Fixed number types
D. Constants do not exist in VHDL code.

Answer: Option A

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66. 

Solve this BCD problem: 0100 + 0110 =
A. 00010000BCD
B. 00010111BCD
C. 00001011BCD
D. 00010011BCD

Answer: Option A

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67. 

Add the following hexadecimal numbers.

3C   14   3B
+25   +28   +DC
A. 60 3C 116
B. 62 3C 118
C. 61 3C 117
D. 61 3D 117

Answer: Option C

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68. 

Add the following BCD numbers.

0110   0111   1001
0101   1000   1000
A. 0000 1011 0000 1111 0001 0001
B. 0001 0001 0001 0101 0001 0001
C. 0000 1011 0000 1111 0001 0111
D. 0001 0001 0001 0101 0001 0111

Answer: Option D

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69. 

Multiply the following binary numbers.

1010   1011   1001
×0011   ×0111   ×1010
A. 0001 1110 0100 1101 0101 1011
B. 0001 1110 0100 1100 0101 1010
C. 0001 1110 0100 1101 0101 1010
D. 0001 1101 0100 1101 0101 1010

Answer: Option C

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70. 

Solving –11 + (–2) will yield which two's-complement answer?
A. 1110 1101
B. 1111 1001
C. 1111 0011
D. 1110 1001

Answer: Option C

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71. 

Perform subtraction on each of the following binary numbers by taking the two's-complement of the number being subtracted and then adding it to the first number.

01001        01100
00011        00111
A. 01100 10011
B. 00110 00101
C. 10110 10101
D. 00111 00100

Answer: Option B

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72. 

What is the first thing you will need if you are going to use a macrofunction?
A. A complicated design project
B. An experienced design engineer
C. Good documentation
D. Experience in HDL

Answer: Option C

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