Practice Test: Question Set - 14
1. The functional difference between SR flip-flop and JK flip-flop is that
- (A) JK flip-flop
is faster than SR flip-flop
- (B) JK flip-flop
has a feedback path
- (C) JK flip-flop
accepts both inputs 1
- (D) JK flip-flop
does not require external clock
2. FETs are used in linear ICs to:
- (A) Increase
input resistance
- (B) Provide
large resistances
- (C) Increase
device complexity
- (D) Both (a) and
(b) above
3. When a transistor is cut off or saturated, transistor _______ have almost no effect
- (A) Wave
- (B) Variations
- (C) Stage
- (D) Circuits
4. A preliminary guide for comparing the simplicity of logic circuits is to count the number of input _______ leads.
- (A) Wire
- (B) Bus
- (C) Gate
- (D) All of the
above
5. How many inputs signals can a gate have?
- (A) One
- (B) More than
one
- (C) Two only
- (D) Both (a) and
(b)
6. Conversion of 10110112 to it's decimal equivalent is
- (A) 8110
- (B) 9110
- (C) 10010
- (D) 20010
7. With a NAND latch a low R and a low S produce a _______ condition.
- (A) Race
- (B) Set
- (C) Reset
- (D) No change
8. ________ is the fastest logic family; it's used in high-speed applications.
- (A) DTL
- (B) TTL
- (C) ECL
- (D) MOS
9. The inverter OR gate and AND gate are called decision-making elements because they can recognize some input _______ while disregarding others. A gate recognizes a word when its output is _______
- (A) Words, high
- (B) Bytes, low
- (C) Bytes, high
- (D) Character,
low
10. When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is
- (A) JK flip-flop
- (B) D flip-flop
- (C) T flip-flop
- (D) Master slave
JK flip-flop
11. The hexadecimal digits are 0 to 9 and A to _______
- (A) D
- (B) E
- (C) F
- (D) G
12. In Boolean algebra, the over bar stands for the NOT operation, the plus sign stands for the _______ operation.
- (A) AND
- (B) OR
- (C) NAND
- (D) NOR
13. What logic function is obtained by adding an inverter to the inputs of an AND gate?
- (A) OR
- (B) NAND
- (C) XOR
- (D) NOR
14. The octal equivalent of decimal 324.987 is
- (A) 504.771
- (B) 640.781
- (C) 815.234
- (D) 90.987
15. The ALU carries out arithmetic and logic operations. It processes ________ numbers rather than decimal numbers.
- (A) Decimal
- (B) Hexadecimal
- (C) Binary
- (D) None of the
above
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