AUT 125 Final Exam Graded A+
Breakdown voltage" is the voltage at which a Zener diode will do which of these? -
ANSWER-Allow the voltage to pass by it
A battery load test is being performed on a 12 volt battery. Technician A says that a
good battery should have a voltage reading of higher than 9.6 volts while under load at
the end of the 15-second test. Technician B says that the battery should be discharged
(loaded) to twice its CCA rating. Who is right? - ANSWER-Technician A only
A box drawn with a solid line in a wiring diagram indicates ________. - ANSWER-.
A complete component
A box drawn with dashed lines in a wiring diagram indicates ________. - ANSWER-A
portion of a component
A capacitor used in a timer circuit discharges through a(an) ________. - ANSWER-
Resistor
A charged capacitor acts like a ________. - ANSWER-Battery
A circuit with excessive current flow ________. - ANSWER-Both A and B
A diode installed across a coil with the cathode toward the battery positive is called a(n)
________. - ANSWER-Clamping diode
A diode is a semiconductor device that ________. - ANSWER-Blocks current in one
direction
A DVOM must be set to which of the following position in order to measure starter circuit
voltage drop? - ANSWER-Volts
A DVOM set to read amps should be connected ________ with the circuit being tested.
- ANSWER-In series
A fully charged 12 volt battery should indicate ________. - ANSWER-Both A and B
A magnetic field created in the rotor, creates voltage in the alternator's ________. -
ANSWER-Stator
A meter is set to read DC volts on the 4-volt scale. The meter leads are connected at a
12-volt battery. The display will read ________ - ANSWER-OL
A positively charged atom is called a(n) ________ - ANSWER-None of them
, A PTC circuit protector prevents excessive current flow in a circuit by ________. -
ANSWER-Changing to a very high resistance
A reading of 432 shows on the face of the meter set to the millivolt scale. The reading
means ________. - ANSWER-0.432 volt
A semiconductor is a material ________. - ANSWER-With exactly four electrons in the
outer orbit of its atoms
A series circuit has three resistors of 4 ohms each. The voltage drop across each
resistor is 4 volts. Technician A says that the source voltage is 12 volts. Technician B
says that the total resistance is 18 ohms. Which technician is correct? - ANSWER-
Technician A only
A series circuit has two 10-ohm bulbs. A third 10-ohm bulb is added in series.
Technician A says that the three bulbs will be dimmer than when only two bulbs were in
the circuit. Technician B says that the current in the circuit will increase. Which
technician is correct? - ANSWER-Technician A only
A transistor can ________. - ANSWER-Do all of the above
A transistor is controlled by the polarity and current at ________. - ANSWER-The base
A vehicle does not crank fast enough to start. Technician A says that the battery could
be discharged or defective. Technician B says that the negative cable could be loose at
the battery. Who is right? - ANSWER-Both technicians A and B
A vehicle has four parking lights with 2 ohms of resistance each. They are all connected
in parallel, and one of the bulbs burns out. Technician A says that this could cause the
parking light fuse to blow (open). Technician B says that it would decrease the current in
the circuit. Which technician is correct? - ANSWER-Technician B only
A voltmeter should be connected to the circuit being tested ________. - ANSWER-In
parallel
A(n) ________ is a break in the electrical circuit that prevents current from flowing and
operating an electrical device. - ANSWER-`Both A and B
An acceptable charging circuit voltage on a 12 volt system is ________. - ANSWER-
13.5 to 15 volts
An AGM battery differs from a conventional flooded battery in what way? - ANSWER-
The electrolyte is absorbed into glass separator and will not spill
An alternator could test as producing lower-than-normal output, yet be okay, if the
________. - ANSWER-Any of the above
Breakdown voltage" is the voltage at which a Zener diode will do which of these? -
ANSWER-Allow the voltage to pass by it
A battery load test is being performed on a 12 volt battery. Technician A says that a
good battery should have a voltage reading of higher than 9.6 volts while under load at
the end of the 15-second test. Technician B says that the battery should be discharged
(loaded) to twice its CCA rating. Who is right? - ANSWER-Technician A only
A box drawn with a solid line in a wiring diagram indicates ________. - ANSWER-.
A complete component
A box drawn with dashed lines in a wiring diagram indicates ________. - ANSWER-A
portion of a component
A capacitor used in a timer circuit discharges through a(an) ________. - ANSWER-
Resistor
A charged capacitor acts like a ________. - ANSWER-Battery
A circuit with excessive current flow ________. - ANSWER-Both A and B
A diode installed across a coil with the cathode toward the battery positive is called a(n)
________. - ANSWER-Clamping diode
A diode is a semiconductor device that ________. - ANSWER-Blocks current in one
direction
A DVOM must be set to which of the following position in order to measure starter circuit
voltage drop? - ANSWER-Volts
A DVOM set to read amps should be connected ________ with the circuit being tested.
- ANSWER-In series
A fully charged 12 volt battery should indicate ________. - ANSWER-Both A and B
A magnetic field created in the rotor, creates voltage in the alternator's ________. -
ANSWER-Stator
A meter is set to read DC volts on the 4-volt scale. The meter leads are connected at a
12-volt battery. The display will read ________ - ANSWER-OL
A positively charged atom is called a(n) ________ - ANSWER-None of them
, A PTC circuit protector prevents excessive current flow in a circuit by ________. -
ANSWER-Changing to a very high resistance
A reading of 432 shows on the face of the meter set to the millivolt scale. The reading
means ________. - ANSWER-0.432 volt
A semiconductor is a material ________. - ANSWER-With exactly four electrons in the
outer orbit of its atoms
A series circuit has three resistors of 4 ohms each. The voltage drop across each
resistor is 4 volts. Technician A says that the source voltage is 12 volts. Technician B
says that the total resistance is 18 ohms. Which technician is correct? - ANSWER-
Technician A only
A series circuit has two 10-ohm bulbs. A third 10-ohm bulb is added in series.
Technician A says that the three bulbs will be dimmer than when only two bulbs were in
the circuit. Technician B says that the current in the circuit will increase. Which
technician is correct? - ANSWER-Technician A only
A transistor can ________. - ANSWER-Do all of the above
A transistor is controlled by the polarity and current at ________. - ANSWER-The base
A vehicle does not crank fast enough to start. Technician A says that the battery could
be discharged or defective. Technician B says that the negative cable could be loose at
the battery. Who is right? - ANSWER-Both technicians A and B
A vehicle has four parking lights with 2 ohms of resistance each. They are all connected
in parallel, and one of the bulbs burns out. Technician A says that this could cause the
parking light fuse to blow (open). Technician B says that it would decrease the current in
the circuit. Which technician is correct? - ANSWER-Technician B only
A voltmeter should be connected to the circuit being tested ________. - ANSWER-In
parallel
A(n) ________ is a break in the electrical circuit that prevents current from flowing and
operating an electrical device. - ANSWER-`Both A and B
An acceptable charging circuit voltage on a 12 volt system is ________. - ANSWER-
13.5 to 15 volts
An AGM battery differs from a conventional flooded battery in what way? - ANSWER-
The electrolyte is absorbed into glass separator and will not spill
An alternator could test as producing lower-than-normal output, yet be okay, if the
________. - ANSWER-Any of the above
