Name: 
 

Chapter 4



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

A circuit with little or no resistance in it is called ____.
a.
an open circuit
c.
voltage drop
b.
a short circuit
d.
none of the above
 

2. 

A principal function of resistors is to produce a ____, which is used to create the different ranges in multirange voltmeters.
a.
voltage multiplier
c.
voltage divider
b.
short circuit
d.
current divider
 

3. 

____ resistors are made from a compound of carbon graphite and a resin bonding material.
a.
Graphite
c.
Resin
b.
Fixed
d.
None of the above
 

4. 

The value of 5 M-ohms is ____ ohms.
a.
500
c.
500,000
b.
5,000
d.
5,000,000
 

5. 

Carbon resistors will change their value because of ____.
a.
age
c.
overheating
b.
low voltage
d.
either a or c
 

6. 

Resistors that have a tolerance of plus/minus 20% have ____ color bands.
a.
3
c.
5
b.
4
d.
6
 

7. 

When working with electrical equipment that requires sensitive adjustments, ____ resistors are usually used.
a.
carbon film
c.
multiturn variable
b.
metal film
d.
carbon composition
 

8. 

A rheostat is a variable resistor with ____ terminals.
a.
2
c.
4
b.
3
d.
5
 

9. 

A potentiometer is a variable resistor with ____ terminals.
a.
2
c.
4
b.
3
d.
5
 

10. 

A potentiometer is a variable resistor used to provide a variable ____.
a.
amperage
c.
power rating
b.
voltage
d.
resistor rating
 



 
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