Electrics Test Flashcards
An alternator rectifier is fitted with:
A number of diodes
After driving a diesel engined vehicle into the workshop, you try to turn it off but the engine keeps running. What is the likely cause?
Faulty fuel cut-off solenoid
With the meter connected as shown in the illustration, what voltage will the meter display? (12 volts, 6 ohms)
6 volts
Which meter is connected in series with the circuit components to get a reading?
Ammeter
In the circuit below, the pd measured across the 8 ohm resistor will be what? (12 volts)
4 volts
Give a means of providing low current switching for a high current starter motor circuit
A solenoid
If the side and rear lamps and main beam lamps operate, but the dip beam lamps fail to operate, the likely cause is:
The dip switch is faulty
By connecting a voltmeter across the battery terminals and observing the reading while cranking over the starter motor, you can:
Calculate the volt drop
What is the voltage of a fully charged cell in a battery?
2.1 volts
A car’s battery has gone flat. To start the engine, you should:
Connect a spare battery in parallel to the car’s battery
