Digital Computer Electronics Quiz Questions - Set 14 - ObjectiveBooks

Digital Computer Electronics Quiz Questions - Set 14

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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