ASE Electrical And Electronics T6 Questions
With Answers.
1. A technician needs to check for voltage in a non-solid state electrical circuit. Technician
A says a 12-volt test light can be used by attaching one lead to a known good voltage
source, then probing various points along the circuit. Technician B says one lead of the
12-volt test light should be grounded, and the other used to probe various points along the
circuit. Who is right? - Correct answer-The correct answer is B. A 12-volt test light is used
to check for voltage. One lead must therefore be grounded before probing test points
2. Technician A says an ohmmeter can be used instead of a self-powered test light when
checking continuity. Technician B says a multimeter set to ohms can be used to back-
probe for voltage. Who is right? - Correct answer-The correct answer is A. An ohmmeter,
like a self-powered test light, can be used to check for continuity through a circuit. Since
both have their own power sources, the circuits being tested must be unpowered. A plain
12-volt test light or multimeter set to volts is used to check for voltage already in the circuit.
3. In the previous circuit, the light bulb will not light. The fuse is good, and there is voltage
at point F. With the switch closed, there is no voltage at point G. What is the likely cause?
A. There is a bad ground at point J.
B. The battery terminals are loose.
C. The bulb is bad.
D. The switch or its connection is bad. - Correct answer-The correct answer is D. There is
voltage on one side of the switch. With the switch closed, there should be voltage at the
other side as well. If not, the switch or its connector is not conducting current
4. In order to bench test the switch in this circuit, a technician would use:
A. a test light
B. a voltmeter
C. a self-powered test light
D. an ammeter - Correct answer-The correct answer is C. With the switch removed from
the circuit, there is no way to check for voltage or current. A 12-volt test light, voltmeter
and ammeter will not work. With the switch closed, continuity could be checked with a self-
powered test light or ohmmeter.
, 5. With the switch in the circuit closed, there is voltage at point H, but the light still doesn't
work, Technician A says it could be a bad bulb. Technician B says it could be a bad
ground. Who is right? - Correct answer-The correct answer is C, both technicians are
right. If there is voltage available at the bulb and it doesn't light, either the light isn't
grounded or the bulb is burned out
6. It you concluded that the bulb in this circuit was not grounded, how could you check for
a break in the ground wire?
A. attach a 12-volt test light or voltmeter to points G and H
B. attach a self-powered test light or ohmmeter to points G and H
C. attach a 12-volt test light or voltmeter to points I and J
D. attach a self-powered test light or ohmmeter to points I and J - Correct answer-The
correct answer is D. To check for continuity to ground, a self-powered test light or
ohmmeter should be used between point I at the light bulb and point J or ground
7. Same circuit, new symptoms: the light doesn't work and the fuse is blown. You replace
the fuse, but as soon as you attempt to operate the circuit, the new fuse blows. What could
be the problem?
A. There is a short to ground.
B. The fuse is too low an amperage rating.
C. both A and B
D. neither A or B - Correct answer-The correct answer is C. Either a short or a fuse of
improper rating for the application will blow the fuse when the circuit is operated. In either
case, there is too much current flow for the fuse to handle
8. In the previous example, the fault is a short to ground. Technician A says it must be
between points G and H. Technician B says it could be between points E and H. Who is
right? - Correct answer-The correct answer is A. Since the fuse only blows when the
switch is closed, the short must be in the switch, at the light bulb or in the wire between
points G and H. If the short were before the switch, the new fuse would have blown the
moment it was installed
9. Technician A says the two most common types of circuit breakers are thermal and non-
conductive. Technician B says all circuit breakers can be manually reset. Who is right? -
Correct answer-The correct answer is D, neither is right. The two most common types of
circuit breakers are called thermal and magnetic. Thermal circuit breakers work by
With Answers.
1. A technician needs to check for voltage in a non-solid state electrical circuit. Technician
A says a 12-volt test light can be used by attaching one lead to a known good voltage
source, then probing various points along the circuit. Technician B says one lead of the
12-volt test light should be grounded, and the other used to probe various points along the
circuit. Who is right? - Correct answer-The correct answer is B. A 12-volt test light is used
to check for voltage. One lead must therefore be grounded before probing test points
2. Technician A says an ohmmeter can be used instead of a self-powered test light when
checking continuity. Technician B says a multimeter set to ohms can be used to back-
probe for voltage. Who is right? - Correct answer-The correct answer is A. An ohmmeter,
like a self-powered test light, can be used to check for continuity through a circuit. Since
both have their own power sources, the circuits being tested must be unpowered. A plain
12-volt test light or multimeter set to volts is used to check for voltage already in the circuit.
3. In the previous circuit, the light bulb will not light. The fuse is good, and there is voltage
at point F. With the switch closed, there is no voltage at point G. What is the likely cause?
A. There is a bad ground at point J.
B. The battery terminals are loose.
C. The bulb is bad.
D. The switch or its connection is bad. - Correct answer-The correct answer is D. There is
voltage on one side of the switch. With the switch closed, there should be voltage at the
other side as well. If not, the switch or its connector is not conducting current
4. In order to bench test the switch in this circuit, a technician would use:
A. a test light
B. a voltmeter
C. a self-powered test light
D. an ammeter - Correct answer-The correct answer is C. With the switch removed from
the circuit, there is no way to check for voltage or current. A 12-volt test light, voltmeter
and ammeter will not work. With the switch closed, continuity could be checked with a self-
powered test light or ohmmeter.
, 5. With the switch in the circuit closed, there is voltage at point H, but the light still doesn't
work, Technician A says it could be a bad bulb. Technician B says it could be a bad
ground. Who is right? - Correct answer-The correct answer is C, both technicians are
right. If there is voltage available at the bulb and it doesn't light, either the light isn't
grounded or the bulb is burned out
6. It you concluded that the bulb in this circuit was not grounded, how could you check for
a break in the ground wire?
A. attach a 12-volt test light or voltmeter to points G and H
B. attach a self-powered test light or ohmmeter to points G and H
C. attach a 12-volt test light or voltmeter to points I and J
D. attach a self-powered test light or ohmmeter to points I and J - Correct answer-The
correct answer is D. To check for continuity to ground, a self-powered test light or
ohmmeter should be used between point I at the light bulb and point J or ground
7. Same circuit, new symptoms: the light doesn't work and the fuse is blown. You replace
the fuse, but as soon as you attempt to operate the circuit, the new fuse blows. What could
be the problem?
A. There is a short to ground.
B. The fuse is too low an amperage rating.
C. both A and B
D. neither A or B - Correct answer-The correct answer is C. Either a short or a fuse of
improper rating for the application will blow the fuse when the circuit is operated. In either
case, there is too much current flow for the fuse to handle
8. In the previous example, the fault is a short to ground. Technician A says it must be
between points G and H. Technician B says it could be between points E and H. Who is
right? - Correct answer-The correct answer is A. Since the fuse only blows when the
switch is closed, the short must be in the switch, at the light bulb or in the wire between
points G and H. If the short were before the switch, the new fuse would have blown the
moment it was installed
9. Technician A says the two most common types of circuit breakers are thermal and non-
conductive. Technician B says all circuit breakers can be manually reset. Who is right? -
Correct answer-The correct answer is D, neither is right. The two most common types of
circuit breakers are called thermal and magnetic. Thermal circuit breakers work by
