MCQs Digital Logic Design

By Prof. Fazal Rehman Shamil
Last modified on November 5th, 2020

MCQs Digital Logic Design

1. When we input two values 0 and 1 which of the following gates would output 1?

A. OR gate
B. NAND gate
C. AND gate
D. both a and c

Answer - Click Here:
D

2. one nibble= ________ bits
A. 16
B. 8
C. 4
D. 2

Answer - Click Here:
C

3. flip-flops that are unlocked are called

A. Transition tables
B. register
C. Latches
D. None

Answer - Click Here:
C

4. Which is not equal to x?

A. X NAND 1
B. X NOR X
C. X NAND X
D. X NOR 1

Answer - Click Here:
D

5.What value Excess-8 code assigns to “-8”?

A. 0000
B. 1100
C. 1110
D. 1000

Answer - Click Here:
A

 

6. How many rows are needed in the primitive flow table for the gated latch?

A. 1 row
B. 3 rows
C. 5 rows
D. 7 rows

Answer - Click Here:
A

7. Which gate is added to the inputs to convert OR gate into NAND gate?
A. XOR
B. AND
C. OR
D. NOT

Answer - Click Here:
D

8. LUT What is the acronym for LUT?

A. Local User Terminal
B. Least Upper Time Period
C. Look Up Table
D. None of given options

Answer - Click Here:
C

9. Final stable state in all cases is ____________.

A. undefined
B. same
C. changed
D. inverted

Answer - Click Here:
B

10. Which gate is equal to the EXCLUSIVE NOR gate if we put the inverter on it?

A. NAND
B. AND
C. XOR
D. OR

Answer - Click Here:
C

11. The three basic gates are

A. NOT, NOR, XOR
B. OR, AND, NAND
C. AND, NAND, XOR
D. NOT, OR, AND

Answer - Click Here:
D

12.In timing problem of _______________ complexity of asynchronous circuit is involved.

A. inputs
B. feedback path
C. clock pulses
D. outputs

Answer - Click Here:
B

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