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WorksheetsAutomotive Electrical
Total questions: 15
Worksheet time: 11mins
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
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
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
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
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
A battery state-of-charge test may be performed using a:
DVOM
Test light
Continuity tester
Fused jumper wire
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
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
Which part of the electrical system is designed to keep the circuit from being destroyed in case of a short?
bulb
fuse
sensor
wire
What supplies electrical power to the vehicle while the engine is running?
ABS module
alternator
computer
starter
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
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
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
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
Which electrical circuit has only one positive and one ground?
Parallel
Parasite
Rotational
Series
