Practice Test: Question Set - 08
1. A typical microcomputer may have up to 65,536 registers in its memory. Each of these registers, usually called a ________
- (A) Address
- (B) Memory
location
- (C) Registers
- (D) Chip
2. Which TTL sub-family has maximum speed?
- (A) Standard TTL
- (B) Schottky-clamped
TTL
- (C) High speed
TTL
- (D) Low power
TTL
3. The logic 1 in positive logic system is represented by:
- (A) Zero voltage
- (B) Lower
voltage level
- (C) Higher
voltage level
- (D) Negative
voltage
4. A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _______ to get a low output
- (A) Low
- (B) High
- (C) Some low
some high
- (D) 0's
5. A flip-flop can store:
- (A) 1 bits of
data
- (B) 2 bits of
data
- (C) 3 bits of data
- (D) 4 bits of
data
6. What is the decimal equivalent of 210?
- (A) 4096
- (B) 1024
- (C) 1000
- (D) 16
7. What is the hexadecimal equivalent of a binary number 10101111
- (A) AF
- (B) 9E
- (C) 8C
- (D) None of the
above
8. A half-adder is also known as:
- (A) AND circuit
- (B) NAND circuit
- (C) NOR circuit
- (D) EX-OR
circuit
9. The number of two-input NAND gates required to produce the two-input OR function is
- (A) 4
- (B) 3
- (C) 2
- (D) 1
10. Conversion of binary number 1100012 to its decimal number is
- (A) 2710
- (B) 4910
- (C) 3910
- (D) 50105010
11. The digits used in a binary number system are _______ and _______
- (A) 9 and 0
- (B) 0 and 1
- (C) 1 and 2
- (D) 3 and 4
12. What advantages do ICs have over discrete-device circuits due to their greater complexity (i.e. more circuitry in less area)
- (A) Smaller size
- (B) Higher
reliability
- (C) Lower cost
- (D) All of the
above
13. Conversion of an octal number 738 to binary number is
- (A) 1101112
- (B) 1111002
- (C) 1100102
- (D) 1110112
14. In Boolean algebra, the times sign stands for the _______ operation
- (A) AND
- (B) OR
- (C) NAND
- (D) NOR
15. Conversion of binary number 1100002 to hexadecimal is
- (A) 3016
- (B) 4016
- (C) 4316
- (D) 2716
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