Digital Components Mcqs

Our Collection of Digital Components multiple choice questions and answers focuses on all areas of Digital Components covering a collection of most authoritative and best reference books on Digital Components. One should spend 1 hour daily for 2-3 months to learn and assimilate Digital Components comprehensively.

16.
The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

X + Y + Z

XY + YZ

X + YZ

XZ + Y

17.
A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as

Encoder

Decoder

Multiplexer

Demultiplexer

20.
Data can be changed from special code to temporal code by using

Shift registers

Counters

Combinational circuits

A/D converters

21.
A ring counter consisting of five Flip-Flops will have

5 states

10 states

32 states

Infinite states

22.
The speed of conversion is maximum in

Successive-approximation A/D converter

Parallel-comparative A/D converter

Counter ramp A/D converter

Dual-slope A/D converter

23.
The gates required to build a half adder are

EX-OR gate and NOR gate

EX-OR gate and OR gate

EX-OR gate and AND gate

Four NAND gates

24.
If the input to T-flipflop is 100 Hz signal, the final output of the three T-flipflops in cascade is

1000 Hz

500 Hz

333 Hz

12.5 Hz

25.
The device which changes from serial data to parallel data is

COUNTER

MULTIPLEXER

DEMULTIPLEXER

FLIP-FLOP

28.
The A/D converter whose conversion time is independent of the number of bits is

Dual slope

Counter type

Parallel conversion

Successive approximation

29.
A 4-bit synchronous counter uses flip-flops with propagation delay times of 15 ns each. The maximum possible time required for change of state will be

15 ns

30 ns

45 ns

60 ns

30.
Words having 8-bits are to be stored into computer memory. The number of lines required for writing into memory are

1

2

4

8

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