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.

31.
In successive-approximation A/D converter, offset voltage equal to 1/2 LSB is added to the D/A converter’s output. This is done to

Improve the speed of operation.

Reduce the maximum quantization error.

Increase the number of bits at the output.

Increase the range of input voltage that can be converted.

33.
Which TTL logic gate is used for wired ANDing

Open collector output

Totem Pole

Tri state output

ECL gates

34.
The MSI chip 7474 is

Dual edge triggered JK flip-flop (TTL)

Dual edge triggered D flip-flop (CMOS)

Dual edge triggered D flip-flop (TTL)

Dual edge triggered JK flip-flop (CMOS)

35.
When the set of input data to an even parity generator is 0111, the output will be

1

0

Unpredictable

Depends on the previous input

42.
ABCD – seven segment decoder / driver in connected to an LED display. Which segments are illuminated for the input code DCBA = 0001.

B, c

C, b

A, b, c

A, b, c, d

45.
If the clock input applied to a cascaded Mod-6 & Mod-4 counter is 48KHz. Than the output of the cascaded arrangement shall be of

4.8 KHz

12 KHz

2 KHz

8 KHz

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