Resistance and Power MCQs

Question 1

Which type of test equipment is used to measure resistors?

Accepted Answer

ohmmeter

Answer

ammeter

Answer

voltmeter

Answer

watt meter

Question 2

Resistance is:

Accepted Answer

the opposition to current flow accompanied by the dissipation of heat

Answer

symbolized by R, measured in ohms, and directly proportional to conductance

Answer

directly proportional to current and voltage

Answer

represented by the flow of fluid in the fluid circuit

Question 3

Electrical equipment is protected against excessive current by a(n):

Accepted Answer

fusible wire link

Answer

insulated glass container

Answer

metal ended coil

Answer

circuit opener

Question 4

If resistance decreases, then current will:

Accepted Answer

increase

Answer

decrease

Answer

remain the same

Answer

double

Question 5

A wire with a smaller cross-sectional area will produce:

Accepted Answer

more heat

Answer

less heat

Answer

more conductance

Answer

less resistance

Question 6

A 22-gauge wire will have a diameter in mils of:

Accepted Answer

22.35

Answer

10.03

Answer

45.26

Answer

71.96

Question 7

The word work means that:

Accepted Answer

energy has been transferred

Answer

it is inversely related to energy

Answer

no energy has been transferred

Answer

work and energy are not related

Question 8

A good fuse will have:

Accepted Answer

zero ohms resistance

Answer

a medium resistance

Answer

a high resistance

Answer

an infinite resistance

Question 9

What property does an incandescent lamp possess?

Accepted Answer

both cold and hot resistance

Answer

cold resistance

Answer

hot resistance

Answer

ballast resistance