310T Exam - Electronical and Electrical
Systems UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
1. When trouble shooting an electrical engine or transmission, what else might be require?
a. Test lamp
b. Break out box
c. Continuity tester
d. Ohm meter - CORRECT ANSWER b. break out box
2. An electronically equipped vehicle over heats, the engine fan will no engage upon engine ECM
request. What is likely the issue?
a. Relay contacts burnt
b. Open in the relay
c. Solenoid open-circuit
d. Solenoid seized - CORRECT ANSWER b. open in the relay
3. When performing a test on the stator, there is "zero-ohms" measured between the windings
end and the stator frame. What should be done?
a. Replace the stator
b. Re-solder windings
c. Install new brushes
d. Increase the voltage - CORRECT ANSWER a. Replace the stator
4. Alternator rings are pitted but can be repaired, what procedure should be done?
a. Polish with a crocus cloth
b. Smooth with fine sandpaper
c. Replace slip rings
d. Install new brushes as-is - CORRECT ANSWER a. polish for a crocus cloth
,5. What procedure should be followed when repairing multiple wires within a short section of a
wiring harness?
a. Twist wires together
b. Twist and tape connections
c. Solder wires in parallel
d. Stagger splices, solder and tape - CORRECT ANSWER d. Stagger splices, solder and tape
6. When the brakes are applied, the trailer clearance lights become dim and flicker, what is the
likely cause?
a. Light switch overload
b. High resistance in the tail light assembly
c. Short circuit at the trailer connector
d. Incorrect supply voltage - CORRECT ANSWER c. Short circuit at the trailer connector
7. Cruise control functions fine during the day time, once the running lights are on, cruise control
fails to function. What is the likely cause?
a. Faulty switch
b. High resistance in the trailer plug
c. Short circuit in the brake light circuit
d. open circuit in the brake light circuit - CORRECT ANSWER c. Short circuit in the brake
light circuit
8. What is the correct procedure for testing the pickup coil in a SI engine?
a. Voltmeter
b. Test light
c. Oscilloscope
d. Ohmmeter - CORRECT ANSWER d. Ohmmeter
9. In order to properly repair wiring, what is the proper procedure?
a. Solder with a resin core, then heat shrink
b. Solder with an acid core, then heat shrink
, c. Butt splice
d. Butt connectors - CORRECT ANSWER a. Solder with a resin core, then heat shrink
10. Alternator output is low, what should be checked first?
a. Voltage regulator
b. Diode trio
c. Commutator
d. Slip ring - CORRECT ANSWER a. Voltage regulator
11. What turns the three-phase alternating current into Direct current in a alternator?
a. Voltage regulator
b. Slip rings
c. Stator
d. Diode trio - CORRECT ANSWER d. diode trio
12. Upon disassembly, a no-operating starter has loose solder particles escaping. What is likely
the cause?
a. Over-speed
b. Low battery voltage
c. Defective solenoid
d. Excessive voltage - CORRECT ANSWER b. low battery voltage
13. A starter solenoid provides a chattering sounds while activated, what is this likely a cause of?
a. Open circuit within the starter
b. Defective solenoid
c. Open circuit within the hold in windings
d. Low battery voltage - CORRECT ANSWER d. Low battery voltage
14. What is the correct procedure when testing for cranking amperage using an inductive pick up?
a. Place the inductive pick-up around the starter cable, while cranking
Systems UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
1. When trouble shooting an electrical engine or transmission, what else might be require?
a. Test lamp
b. Break out box
c. Continuity tester
d. Ohm meter - CORRECT ANSWER b. break out box
2. An electronically equipped vehicle over heats, the engine fan will no engage upon engine ECM
request. What is likely the issue?
a. Relay contacts burnt
b. Open in the relay
c. Solenoid open-circuit
d. Solenoid seized - CORRECT ANSWER b. open in the relay
3. When performing a test on the stator, there is "zero-ohms" measured between the windings
end and the stator frame. What should be done?
a. Replace the stator
b. Re-solder windings
c. Install new brushes
d. Increase the voltage - CORRECT ANSWER a. Replace the stator
4. Alternator rings are pitted but can be repaired, what procedure should be done?
a. Polish with a crocus cloth
b. Smooth with fine sandpaper
c. Replace slip rings
d. Install new brushes as-is - CORRECT ANSWER a. polish for a crocus cloth
,5. What procedure should be followed when repairing multiple wires within a short section of a
wiring harness?
a. Twist wires together
b. Twist and tape connections
c. Solder wires in parallel
d. Stagger splices, solder and tape - CORRECT ANSWER d. Stagger splices, solder and tape
6. When the brakes are applied, the trailer clearance lights become dim and flicker, what is the
likely cause?
a. Light switch overload
b. High resistance in the tail light assembly
c. Short circuit at the trailer connector
d. Incorrect supply voltage - CORRECT ANSWER c. Short circuit at the trailer connector
7. Cruise control functions fine during the day time, once the running lights are on, cruise control
fails to function. What is the likely cause?
a. Faulty switch
b. High resistance in the trailer plug
c. Short circuit in the brake light circuit
d. open circuit in the brake light circuit - CORRECT ANSWER c. Short circuit in the brake
light circuit
8. What is the correct procedure for testing the pickup coil in a SI engine?
a. Voltmeter
b. Test light
c. Oscilloscope
d. Ohmmeter - CORRECT ANSWER d. Ohmmeter
9. In order to properly repair wiring, what is the proper procedure?
a. Solder with a resin core, then heat shrink
b. Solder with an acid core, then heat shrink
, c. Butt splice
d. Butt connectors - CORRECT ANSWER a. Solder with a resin core, then heat shrink
10. Alternator output is low, what should be checked first?
a. Voltage regulator
b. Diode trio
c. Commutator
d. Slip ring - CORRECT ANSWER a. Voltage regulator
11. What turns the three-phase alternating current into Direct current in a alternator?
a. Voltage regulator
b. Slip rings
c. Stator
d. Diode trio - CORRECT ANSWER d. diode trio
12. Upon disassembly, a no-operating starter has loose solder particles escaping. What is likely
the cause?
a. Over-speed
b. Low battery voltage
c. Defective solenoid
d. Excessive voltage - CORRECT ANSWER b. low battery voltage
13. A starter solenoid provides a chattering sounds while activated, what is this likely a cause of?
a. Open circuit within the starter
b. Defective solenoid
c. Open circuit within the hold in windings
d. Low battery voltage - CORRECT ANSWER d. Low battery voltage
14. What is the correct procedure when testing for cranking amperage using an inductive pick up?
a. Place the inductive pick-up around the starter cable, while cranking
