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12-8

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

 1. 

Which of the following statements about a series circuit is true?
a.
It has only one path for current flow.
b.
It can have only one load connected at a time.
c.
It offers several paths for current flow.
d.
It will keep conducting even if interrupted.
 

 2. 

Which basic element of electricity is also described as “electrical pressure?”
a.
Current.
c.
Resistance.
b.
Capacitance.
d.
Voltage.
 

 3. 

In a(n) ____, the vehicle's frame or body serves as an electrical conductor.
a.
parallel circuit
c.
series-parallel circuit
b.
one-wire circuit
d.
series circuit
 

 4. 

Technician A says that an electrical short circuit causes excess current flow. Technician B says a short causes excess resistance to develop. Who is right?
a.
A only.
c.
Both A and B.
b.
B only.
d.
Neither A nor B.
 

 5. 

To protect an electrical circuit from damage by a “short,” a device called a(n) ____ is installed.
a.
diode
c.
fuse
b.
capacitor
d.
relay
 

True/False
Indicate whether the statement is true or false.
 

 6. 

Printed circuits are most often used in instrument panels of vehicles.
 

 7. 

“Secondary wire” refers to all vehicle circuits that are not part of the ignition system.
 

 8. 

An ammeter is a device for directly measuring the resistance of a circuit.
 

 9. 

When electrical current passes through a wire, a magnetic field is generated.
 

 10. 

According to Ohm’s Law, current flows from positive to negative.
 

Matching
 
 
Match the following terms and identifying phrases.
a.
amp
d.
volt
b.
chip
e.
VOM
c.
ohm
 

 11. 

Unit of resistance.
 

 12. 

Multimeter.
 

 13. 

Unit of current flow.
 

 14. 

Integrated circuit.
 

 15. 

Unit of voltage.
 
 
Identify each of the marked items on the diagram below.
grp002-1.jpg
 

 16. 

From power source.
 

 17. 

To load.
 

 18. 

Control circuit.
 

 19. 

Power circuit.
 

 20. 

Armature.
 

Completion
Complete each statement.
 

 21. 

______________________________ wire has color-coded insulation for ease in tracing circuits.
 

 

 22. 

For electrical work, only ______________________________ solder should be used.
 

 

 23. 

When a switch is ______________________________, current cannot flow through it.
 

 

 24. 

A(n) ______________________________ is an electronic device that allows current flow in only one direction.
 

 

 25. 

A relay and a(n) ______________________________ perform basically the same task: controlling a large current with a small current.
 

 



 
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