Practice Test: Question Set - 07
1. Binary-Coded-decimal (BCD) numbers express each digit as a _______
- (A) Byte
- (B) Nibble
- (C) Bit
- (D) None of the
above
2. A shift register moves the _______ left or right. Serial loading means storing a word in a shift register by entering _______ bit per clock pulse. With parallel or broadside loading, it takes only one _______ pulse to load the input word.
- (A) Light,
eight, clock
- (B) Right,
eight, clock
- (C) Bits, one,
register
- (D) Bits, one,
clock
3. Conversion of an octal number 74328 to a binary number is
- (A) 11110001101112
- (B) 1111000110102
- (C) 1100110101112
- (D) 1111111110002
4. Conversion of an octal number 1068 to binary number is
- (A) 11100102
- (B) 10001102
- (C) 11001102
- (D) 100001102
5. What logic function is produced by adding an inverter to the output of an AND gate?
- (A) NAND
- (B) NOR
- (C) XOR
- (D) OR
6. Names, numbers, and other information needed to solve a problem are called _________
- (A) Program
- (B) Instruction
- (C) Data
- (D) Controls
7. Multiplication of 1112 by 1012 is
- (A) 1100112
- (B) 1000112
- (C) 1111002
- (D) 0001012
8. How many full and half-adders are required to add 16-bit numbers?
- (A) 8
half-adders, 8 full-adders
- (B) 1
half-adders, 15 full-adders
- (C) 16
half-adders, no full-adders
- (D) 4
half-adders, 12 full-adders
9. Semiconductor memory is:
- (A) Somewhat
slower than magnetic core memory
- (B) A volatile
memory
- (C) Somewhat
larger than the magnetic core memory
- (D) None of the
above
10. Conversion of decimal number 4210 to it's octal number equivalent is
- (A) 578
- (B) 428
- (C) 478
- (D) 528
11. How many memory locations can 14 address bits access?
- (A) 16,384
- (B) 8,192
- (C) 4,096
- (D) 14
12. Conversion of binary number 11000012 to hexadecimal is
- (A) 5716
- (B) 6116
- (C) 5116
- (D) 4316
13. The dynamic race hazard problem occurs in
- (A) Combinational
circuits only
- (B) Sequential
circuits only
- (C) Both
combinational and sequential circuits
- (D) None of the
combinational and sequential circuits
14. Conversion of binary number 10010102 to to its decimal number is
- (A) 7410
- (B) 9710
- (C) 7210
- (D) 6310
15. Conversion of binary number 10100002 to an octal number is
- (A) 1198
- (B) 1018
- (C) 1118
- (D) 1208
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