Signals and Switches MCQs

Question 1

What is the advantage of using serial data transmission over parallel data transmission?

Accepted Answer

Only one pair of wires is required.

Answer

It is slower.

Answer

More people use it.

Answer

It is faster.

Question 2

A TTL totem-pole circuit is designed so that the output transistors:

Accepted Answer

are never on together

Answer

are always on together

Answer

provide phase splitting

Answer

provide voltage regulation

Question 3

What is the advantage of using CMOS logic over TTL?

Accepted Answer

It uses less power.

Answer

It switches faster.

Answer

It is larger.

Answer

cost

Question 4

What is used to graphically show the time relationship between two or more digital waveforms?

Accepted Answer

timing diagram

Answer

reference diagram

Answer

voltage curve

Answer

load line

Question 5

What is a disadvantage of CMOS in place of TTL?

Accepted Answer

It switches slower.

Answer

It uses less power.

Answer

It is smaller.

Answer

cost

Question 6

The units for the HIGH time for a periodic wave are ________.

Accepted Answer

seconds

Answer

hertz

Answer

cycles

Answer

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