22 Multiple choice questions

Which of the following meters is connected in series with the circuit components to get a reading?

• Multimeter

• Megger

• Ammeter

• Galvanometer

A light is not working, the bulb is not faulty the next check would be the

• Number of attached sensors

• Clock rate of the cpu

• Supply voltage

• Ammeter

The relative density of the electrolyte in a fully charged lead acid battery is approximately

• 1.100

• 1.280

• 1.250

• 1.500

What information would be useful to have from the customer before disconnecting their entertainment system?

• If the customer has a warranty for the system

• If the customer wants to upgrade the system

• If the customer knows the security code

• If the customer has the original receipt

Before disconnecting the battery on a vehicle, it is good practice to fit an alternative voltage supply to the cigar lighter to

• Check the condition of the wiper motor fuse

• Prevent component memory loss

• Supply voltage

• Calculate the volt drop

What are actuators used for in a vehicle electrical system?

• To measure the temperature of engine components

• To convert electrical information into physical action

• To regulate the fuel flow in the engine

• To store electrical energy for later use

An electronic immobiliser is likely to work by disabling the

• Electron-magnetic sensor

• Engine management system

• Engine magnet system

• Fuel-injection system

What check would you carry out if the screen wiper motor does not work

• Check the condition of the wiper motor fuse

• Inspect the windshield for cracks

• Verify the tire pressure

• Test the battery voltage

An electrical cable is designed as 28/0.30. This means that

• It has 28 strands each with a diameter of 0.30mm

• It has 0.30 strands each with a diameter of 28mm

• It has 28 strands each with a diameter of 3.0mm

• It has 30 strands each with a diameter of 0.28mm

To prevent the engine driving the starter motor, if the starter switch is not released on starting:

• A one-way clutch is fitted

• A new starter motor is required

• A second battery is installed

• A fuel pump is disconnected