Electrical

Multiple Choice

A customer complains that the right turn signal is inoperative but the left works correctly. What is the most likely cause?

• An open wire in the right turn signal circuit

• A defective turn signal flasher

• A blown right turn signal bulb

• A short to ground in the right turn signal circuit

Multiple Choice

The customer complains of a squealing noise coming from under the hood of the vehicle when it is first started. The technician has determined that the noise is coming from the alternator belt. What should be the next step?

• Replace the battery

• Replace the alternator

• Replace the belt

• Check the condition of the belt

Multiple Choice

A fully charged 12-volt automotive battery should have an open-circuit voltage of:

• 12.0 volts

• 12.3 volts

• 12.6 volts

• 14.6 volts

Multiple Choice

Which is best suited for fully charging a completely discharged 12-volt battery?

• Charge the battery for at least 1 hour by idling the engine

• Charge the battery for at least 30 minutes by racing the vehicle's engine

• Slow charge for 12 hours

• Fast charge for 30 minutes

Multiple Choice

When one uses a VAT to test the alternator output, the green inductive pickup should be placed around which cable, with the arrow pointing away from the battery?

• Positive battery cable

• Alternator battery cable

• Starter positive cable

• Negative battery cable

Multiple Choice

A battery state-of-charge test may be performed using a:

• DVOM

• Test light

• Continuity tester

• Fused jumper wire

Multiple Choice

The left front park light is not working. All of the following could be the problem except:

• bad bulb

• bad ground

• bad light socket

• bad switch

Multiple Choice

When charging the 12-volt auxiliary battery of a hybrid vehicle, all of these precautions should be observed except:

• Charging the battery at a fast rate of charge

• Turning all accessories off

• First, correcting any parasitic drain problems

• Never charging the 12-volt auxiliary battery with the hybrid system turned on

Multiple Choice

Which part of the electrical system is designed to keep the circuit from being destroyed in case of a short?

• bulb

• fuse

• sensor

• wire

Multiple Choice

What supplies electrical power to the vehicle while the engine is running?

• ABS module

• alternator

• computer

• starter

Multiple Choice

A battery load test is being performed. The proper method is to:

• Apply a load until the battery drops to 9.6 volts

• Apply a load equal to one-half the CCA rating

• Apply a load equal to twice the CCA rating

• Apply a load for 30 seconds

Multiple Choice

A customer requests that his headlights be aimed. Technician A says that most modern cars do not have any adjustments to aim headlights. Technician B says that a way to aim headlights is to use a wall chart. Who is correct?

• Technician A only

• Technician B only

• Both Technician A and B

• Neither Technician A nor B

Multiple Choice

When determining the proper battery application for a vehicle, what factor(s) should be considered?

• All of the above

• Electrical components that the customer might have added

• The conditions in which the vehicle is being used

• Manufacturer's recommendations

Multiple Choice

Technician A says charging a 12-volt auxiliary battery in a hybrid vehicle may require a special battery charger. Technician B says when replacing the 12-volt battery of a hybrid vehicle, the process is basically the same as servicing any other 12-volt battery. Who is correct?

• Technician A only

• Technician B only

• Both Technician A and B

• Neither Technician A nor B

Multiple Choice

Which electrical circuit has only one positive and one ground?

• Parallel

• Parasite

• Rotational

• Series