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1. The meter used to measure resistance is the
a. voltmeter
b. ohmmeter
c. ammeter
d. tachometer
2. What is required to produce electron flow?
a. a conductor
b. motion between magnetic
field and conductor
c. a magnetic field
d. all of the above
3. Current is also called
a. amperage
b. resistance
c. wattage
d. voltage
4. A relay consists of two circuits, a _____circuit and a_____
circuit.
a. control, power
b. input, ground
c. input, actuator
d. output, control
5. Technician A says that voltage drop is the same as
resistance. Technician B says that voltage drop is
measured
across a resistance. Who is right?
a. A only
b. B only
c. either A or
B
d. neither A nor
B
6. Electricity is the
a. flow of
electrons from an area of high potential
to an area of low potential
b. charge
between two areas
c. force
that causes the poles of a magnet to attract
or repel
d. orbiting
of electrons around the nucleus of an
atom
7. If the resistance in a circuit is increased, and the voltage
remains the same, the amperage will
a. increase
b. equal
1 amp
c. remain
unchanged
d. decrease
8. Technician A says that a magnetic field can create current
flow. Technician B says that electricity can be created
by
moving a wire through a magnetic field. Who is right?
a. A only
b. B only
c. both A
and B
d. neither
A nor B
9. In order for electrons to flow, which of the following must
be present?
a. a difference
in the number of electrons between
two points
b. a path
between two points
c. a battery
d. both a
and b
10. The ohm is a measurement of
a. resistance
b. voltage
c. power
d. current
11. Electrical "pressure" is measured in
a. volts
b. amps
c. watts
d. ohms
12. Amperage is a measurement of
a. power
b. voltage
c. resistance
d. current
13. The current in a series circuit is
a. equal
throughout
b. divided
equally among the loads
c. equal
to the voltage
d. proportional
to the amperage
14. The meter used to measure electrical potential is the
a. ohmmeter
b. voltmeter
c. ammeter
d. tachometer
15. A circuit that provides more than one path for current flow
is a
a. parallel
circuit
b. ground
circuit
c. one wire
circuit
d. series
circuit
16. A circuit in which all components are connected in line is a
a.
parallel circuit
b.
ground circuit
c.
one wire circuit
d.
series circuit
17. The meter used to measure current flow is the
a.
ammeter
b.
tachometer
c.
ohmmeter
d.
voltmeter
18. Opposition to electrical flow is created by
a.
switches
b.
relays
c.
fuses
d.
resistors
19. Which of the following has a negative charge?
a. electron
b. volt
c. proton
d. neutron
20. A relay is a
a. combination
of a switch and electromagnet
b. symbol
that represents change in current direction
c. combination
of an electrical source and load
device
d. device
that uses electrical energy to give motion
to the windshield wipers
21. Electrical pressure is measured in
a. ohms
b. volts
c. amperes
d. watts
22. A 12 volt circuit draws 6 amps. What is the resistance?
a. 72 ohms
b. 18 ohms
c. .5 ohms
d. 2 ohms
23. There is a break in the conductor. Technician A says this
is a short. Technician B says this is a ground.
Who is
right?
a. A only
b. B only
c. either
A or B
d. neither
A nor B
24. A circuit has 3 ohms of resistance. The system operates at
12 volts. What is the amperage?
a. 15 A
b. 36 A
c. 4 A
d. .25 A
25. Technician A says electricity flows from positive to
negative.
Technician B says electricity flows from negative
to
positive.
Who is right?
a. A only
b. B only
c. depends
on battery polarity
d. depends
on circuit construction
KEY