TEST 2 AUMT 1407 QUESTIONS AND
ANSWERS 100% CORRECT
What component carries the magnetic field current in an AC generator? - ANSWER-The
rotor
Technician A says excessive resistance in the common portions of the circuit could
cause both headlights to be dim. Technician B says low AC generator output could be
the cause of dim headlights. Who is correct? - ANSWER-Both A and B
A 100amp AC generator produces 105 amperes all the time. Full fielding it produces
105 amperes also. What does this indicate? - ANSWER-The regulator is running the AC
generator full field all the time
Which of the following statements is true concerning headlight circuits? - ANSWER-All
of the above
Technician A says the fastest check when only one bulb in the circuit is not operating, is
to replace it with a good one. Technician B says start the diagnostic tests at the easiest
location to access. Who is correct? - ANSWER-Both A and B
Technician A says before performing a voltage output test, a visual inspection and
preliminary check of the charging system should be done. Technician B says a voltage
output test will indicate if the charging system is working properly. Who is correct? -
ANSWER-Both A and B
The "bulb failure" warning light of a vehicle is illuminated whenever the headlights are
turned on. Technician A says this can be caused by an excessive voltage drop on the
ground circuit of one of the headlamps. Technician B says excessive resistance in the
left low beam circuit could cause the warning light to be on. Who is correct? - ANSWER-
Both A and B
How many output diodes does an AC generator stator with three windings usually
have? - ANSWER-Six
Technician A says the flasher is at fault when the turn signals work in one direction, but
the indicator light stays on steadily in the other direction. Technician B says this
condition may be caused by a burned out light bulb. Who is correct? - ANSWER-B only
The charging system of a vehicle equipped with an on-board computer-controlled
charging system is undercharging. A lab scope connected to the ground side of the
alternator field indicates a 90 percent duty-cycle. Technician A says the alternator may
ANSWERS 100% CORRECT
What component carries the magnetic field current in an AC generator? - ANSWER-The
rotor
Technician A says excessive resistance in the common portions of the circuit could
cause both headlights to be dim. Technician B says low AC generator output could be
the cause of dim headlights. Who is correct? - ANSWER-Both A and B
A 100amp AC generator produces 105 amperes all the time. Full fielding it produces
105 amperes also. What does this indicate? - ANSWER-The regulator is running the AC
generator full field all the time
Which of the following statements is true concerning headlight circuits? - ANSWER-All
of the above
Technician A says the fastest check when only one bulb in the circuit is not operating, is
to replace it with a good one. Technician B says start the diagnostic tests at the easiest
location to access. Who is correct? - ANSWER-Both A and B
Technician A says before performing a voltage output test, a visual inspection and
preliminary check of the charging system should be done. Technician B says a voltage
output test will indicate if the charging system is working properly. Who is correct? -
ANSWER-Both A and B
The "bulb failure" warning light of a vehicle is illuminated whenever the headlights are
turned on. Technician A says this can be caused by an excessive voltage drop on the
ground circuit of one of the headlamps. Technician B says excessive resistance in the
left low beam circuit could cause the warning light to be on. Who is correct? - ANSWER-
Both A and B
How many output diodes does an AC generator stator with three windings usually
have? - ANSWER-Six
Technician A says the flasher is at fault when the turn signals work in one direction, but
the indicator light stays on steadily in the other direction. Technician B says this
condition may be caused by a burned out light bulb. Who is correct? - ANSWER-B only
The charging system of a vehicle equipped with an on-board computer-controlled
charging system is undercharging. A lab scope connected to the ground side of the
alternator field indicates a 90 percent duty-cycle. Technician A says the alternator may
