LV03 paper 2 Electrical Units and Components Assessment

The alternator stator is found:

• in the slip ring

• in the rotor

• in the rectifier

• in the casing

To power a heavy duty 12 volt starter motor, you may need to connect two 12 volt batteries:

• in parallel

• in the boot

• in series/parallel

• in series

In a vehicle alternator the rectifier pack:

• converts DC to AC

• converts AC to DC

• has a zener diode

• regulates the voltage

If R1 fails in this lighting circuit what will happen to R2 and R3?

• They will both stay lit

• Only R2 will stay lit

• Only R3 will stay lit

• Both will go out

What is the maximum amperage this meter can measure?

• 10A

• 100A

• 300A

• 20A

To avoid damaging an ammeter you should only connect it:

• in parallel with circuit components

• in series with circuit components

• between positive and negative

• between negative and positive

How should a voltmeter and ammeter be connected to measure the resistance in a switch?

• The voltmeter should be connected in parallel and the ammeter in series with the switch

• The voltmeter and the ammeter should both be connected in parallel with the switch

• The voltmeter and the ammeter should both be connected in series with the switch

• The ammeter should be connected in parallel and the voltmeter in series with the switch

The light from a front fog light is dim. Which of the following is NOT a possible cause of the fault?

• Corroded earth connection

• Corroded light reflector

• Open circuit supply cable

• Corroded supply cable

When the starter switch is operated the pre-engaged starter motor turns the engine very slowly. Which of the following is NOT a possible cause of the fault?

• A corroded battery connection

• A loose starter cable

• A partially discharged battery

• A defective roller clutch

The diagram shows three resistors. If the resistor R1 is 1 ohm, R2 is 0.5 ohm and R3 is 1.5 ohm, what is the reading on the ammeter (A) when the switch is closed?

• 9amp

• 4amp

• 3amp

• 36amp