ASE A6 Test Prep (Electrical & Electronic Systems) Exam
Questions with Correct Answers.
Technician An only - ANS A technician connects one lead of a DMM (digital millimeter)
to the positive (+) terminal of a battery and the other meter lead to the "B" terminal of
the starter solenoid and then cranks the engine. During cranking, the voltmeter displays
a reading of 878 mV.
Technician A says this reading indicates the positive battery cable has very high
resistance.
Technician B says this reading indicates that the starter armature is defective.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Replace the battery - ANS When performing a load test on a battery, a technician finds
that the battery voltage drops below specifications. Which of the following is the MOST
likely repair?
a. Recharge the battery and return it to service
b. Recharge the battery and retest it
c. Replace the battery
d. Replace the voltage regulator
Technician an only - ANS Two technicians are describing battery charging.
Technician A says to remove the surface charge from a recently charged battery and
apply a 300-ampere load across the adapters for 15 seconds.
Technician B says to remove the surface charge from batteries, which have been in
storage.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Technician An only - ANS A technician connects one lead of a DMM (digital millimeter)
to the positive (+) terminal of a battery and the other meter lead to the "B" terminal of
,the starter solenoid and then cranks the engine. During cranking, the voltmeter displays
a reading of 878 mV.
Technician A says this reading indicates the positive battery cable has very high
resistance.
Technician B says this reading indicates that the starter armature is defective.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Technician B only - ANS Technician A says proper starter operation depends on the
battery being at a 95% charge and battery cables being of the correct size (gauge) and
having no more than 0.8-volt drop.
Technician B says voltage-drop testing includes cranking the engine, measuring the
drop in voltage from the battery to the starter, and measuring the drop in voltage from
the negative terminal of the battery to the engine block.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Defective starter drive - ANS which of the following could cause the starter to make a
whining noise when engaged?
a. Defective starter drive
b. Defective solenoid
c. Open pull-in winding
d. Worn armature commentator
Neither Technician A nor B - ANS two bulbs are connected in parallel to a 12 volt
battery. Another bulb is added in parallel.
Technician A says that the third bulb will be dimmer than the other two bulbs due to
reduced current flow through the filament of the bulb.
Technician B says that the amount of current flowing from the battery will decrease due
to the extra load.
Who is right?
,Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Technician B only - ANS two bulbs are connected in parallel to a 12 volt battery. One
bulb has a resistance of 6 ohms and the other has a resistance of 2 ohms.
Technician A says that only the 2 ohm bulb will light because all the current will flow
through the 6 ohms bulb.
Technician B says that the 6 ohm bulb will be dimmer than the 2 ohm bulb.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Both B & C - ANS what causes a fuse to blow?
a. A sudden decrease in current through the circuit
b. An increase in current through the circuit
c. A decrease in circuit resistance
d. Both B & C
Both B & C - ANS Many ground straps are uninsulated and braided because
__________?
a. They are less expensive than conventional wire
b. They are more flexible to allow movement of the engine without breaking the wire
c. They dampen Radio-Frequency Interference (RFI)
d. Both B & C
Both Technicians A and B - ANS Technician A says that a test light should light on both
test points of the fuse if it is ok.
Technician B says that the fuse is defective if a test light only lights on one side of the
fuse.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Both B & C - ANS which statement is true about fuse ratings?
a. The fuse rating should be less than the maximum current for the circuit.
, b. The fuse rating should be higher than the normal current for the circuit.
c. 80% of the fuse rating should equal the current in the circuit.
d. Both B & C
The smaller the wire diameter - ANS The higher the AWG #, ____________?
a. The thicker the insulation
b. The more strands in the conductor
c. The smaller the wire diameter
d. The larger the wire diameter
Neither Technician A nor B - ANS Two Technicians are discussing finding a short to
ground using a test light.
Technician A says that the test light, connected in place of the fuse, will light when the
circuit that has the short is disconnected.
Technician B says that the test light should be connected to the positive (+) and (-)
terminals of the battery.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
An open neutral safety switch - ANS Slow engine cranking can be caused by all of the
following, EXCEPT:
a. A low or discharged battery
b. Corroded or dirty battery cables
c. Engine mechanical problems
d. An open neutral safety switch
The same anywhere in the circuit. - ANS The amperage in a series circuit is
_______________?
a. High at the beginning of the circuit and decreases as the current flows through the
resistance.
b. The same anywhere in the circuit.
c. Always less returning than leaving the battery.
d. Variable in the circuit due to the different resistances.
Source voltage. - ANS the sum of the voltage drops in a series circuit equals the
_______________________?
a. Amperage.
b. Wattage.
Questions with Correct Answers.
Technician An only - ANS A technician connects one lead of a DMM (digital millimeter)
to the positive (+) terminal of a battery and the other meter lead to the "B" terminal of
the starter solenoid and then cranks the engine. During cranking, the voltmeter displays
a reading of 878 mV.
Technician A says this reading indicates the positive battery cable has very high
resistance.
Technician B says this reading indicates that the starter armature is defective.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Replace the battery - ANS When performing a load test on a battery, a technician finds
that the battery voltage drops below specifications. Which of the following is the MOST
likely repair?
a. Recharge the battery and return it to service
b. Recharge the battery and retest it
c. Replace the battery
d. Replace the voltage regulator
Technician an only - ANS Two technicians are describing battery charging.
Technician A says to remove the surface charge from a recently charged battery and
apply a 300-ampere load across the adapters for 15 seconds.
Technician B says to remove the surface charge from batteries, which have been in
storage.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Technician An only - ANS A technician connects one lead of a DMM (digital millimeter)
to the positive (+) terminal of a battery and the other meter lead to the "B" terminal of
,the starter solenoid and then cranks the engine. During cranking, the voltmeter displays
a reading of 878 mV.
Technician A says this reading indicates the positive battery cable has very high
resistance.
Technician B says this reading indicates that the starter armature is defective.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Technician B only - ANS Technician A says proper starter operation depends on the
battery being at a 95% charge and battery cables being of the correct size (gauge) and
having no more than 0.8-volt drop.
Technician B says voltage-drop testing includes cranking the engine, measuring the
drop in voltage from the battery to the starter, and measuring the drop in voltage from
the negative terminal of the battery to the engine block.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Defective starter drive - ANS which of the following could cause the starter to make a
whining noise when engaged?
a. Defective starter drive
b. Defective solenoid
c. Open pull-in winding
d. Worn armature commentator
Neither Technician A nor B - ANS two bulbs are connected in parallel to a 12 volt
battery. Another bulb is added in parallel.
Technician A says that the third bulb will be dimmer than the other two bulbs due to
reduced current flow through the filament of the bulb.
Technician B says that the amount of current flowing from the battery will decrease due
to the extra load.
Who is right?
,Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Technician B only - ANS two bulbs are connected in parallel to a 12 volt battery. One
bulb has a resistance of 6 ohms and the other has a resistance of 2 ohms.
Technician A says that only the 2 ohm bulb will light because all the current will flow
through the 6 ohms bulb.
Technician B says that the 6 ohm bulb will be dimmer than the 2 ohm bulb.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Both B & C - ANS what causes a fuse to blow?
a. A sudden decrease in current through the circuit
b. An increase in current through the circuit
c. A decrease in circuit resistance
d. Both B & C
Both B & C - ANS Many ground straps are uninsulated and braided because
__________?
a. They are less expensive than conventional wire
b. They are more flexible to allow movement of the engine without breaking the wire
c. They dampen Radio-Frequency Interference (RFI)
d. Both B & C
Both Technicians A and B - ANS Technician A says that a test light should light on both
test points of the fuse if it is ok.
Technician B says that the fuse is defective if a test light only lights on one side of the
fuse.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
Both B & C - ANS which statement is true about fuse ratings?
a. The fuse rating should be less than the maximum current for the circuit.
, b. The fuse rating should be higher than the normal current for the circuit.
c. 80% of the fuse rating should equal the current in the circuit.
d. Both B & C
The smaller the wire diameter - ANS The higher the AWG #, ____________?
a. The thicker the insulation
b. The more strands in the conductor
c. The smaller the wire diameter
d. The larger the wire diameter
Neither Technician A nor B - ANS Two Technicians are discussing finding a short to
ground using a test light.
Technician A says that the test light, connected in place of the fuse, will light when the
circuit that has the short is disconnected.
Technician B says that the test light should be connected to the positive (+) and (-)
terminals of the battery.
Who is right?
Technician A only
Technician B only
Both Technicians A and B
Neither Technician A nor B
An open neutral safety switch - ANS Slow engine cranking can be caused by all of the
following, EXCEPT:
a. A low or discharged battery
b. Corroded or dirty battery cables
c. Engine mechanical problems
d. An open neutral safety switch
The same anywhere in the circuit. - ANS The amperage in a series circuit is
_______________?
a. High at the beginning of the circuit and decreases as the current flows through the
resistance.
b. The same anywhere in the circuit.
c. Always less returning than leaving the battery.
d. Variable in the circuit due to the different resistances.
Source voltage. - ANS the sum of the voltage drops in a series circuit equals the
_______________________?
a. Amperage.
b. Wattage.
