Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Imi automotive level 2 > Electrical > Flashcards

Electrical Flashcards

You may prefer our related Brainscape-certified flashcards:
Certified Sommelier Exam (CMS 2) flashcards
1
Q

To prevent the engine from driving the starter motor, if the starter switch is not released on starting. What is fitted?

A

A one way clutch.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

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

A

1.280

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

An alternator rectifier is fitted with what?

A

A number of diodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where is the ‘lambda sensor’ usually located?

A

In the exhaust front pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a loose or dirty terminal likely to cause?

A

The engine not to start

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When changing a faulty halogen head lamp bulb you must be careful not to what?

A

Not to touch the bulbs glass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

After driving a diesel engined vehicle into the workshop, you try to turn it off but the engine keeps running a likely fault is?

A

Faulty fuel cut-off solenoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The fault shown on the electrical diagram is?

A

A short circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

With the meter connected as shown in the illustration, what voltage will the meter display?

A

6 volts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A loose alternator belt is likely to cause what?

A

A flat battery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

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

A

Ammeter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

In the circuit below, the pd measured across the 8 ohm resistor will be?

A

4 volts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A means of providing low current switching for a high current starter motor circuit is by the use of?

A

A solenoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

If you were to connect the leads of an ammeter directly to the positive and negative terminals of a battery, what you happen?

A

You would seriously damage the meter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The diagram shows two resistors in a circuit, the resistors are connected in?

A

Series

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

If a customer complains of the need to frequently replace bulbs and the lights are very bright, the likely fault is?

A

A defective voltage regulator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The diagram shows part of a lighting circuit. If the side beam and rear lamps and main beam lamps operate, but the dip beam lamps fail to operate, the likely cause is?

A

The dip switch is faulty

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What will a high resistance in the battery earth lead connection cause the earth lead to do?

A

Get hot when starting the engine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

By connecting a voltmeter across the battery terminals and observing the reading whilst cranking over the starter motor you can?

A

Calculate the volt drop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Before testing an electric component for the first time you should always what?

A

Check the test procedure in the workshop manual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The diagram shows part of a lighting circuit. What is the effect if the earth connection to the component labelled ‘A’ is broken?

A

The side and rear lamps operate normally but the dip and main beam lamps fail to operate

22
Q

The unit of electrical power is?

A

Watt

23
Q

A bad earth connection on a rear lamp may cause the light to?

A

Go dim

24
Q

In a 12 volt lighting circuit 4 lamps are connected in parallel, each lamp is rated at 6 watt. The current used by this circuit is?

A

2 amp

25
Q

To stop the starter motor being turned when the engine starts it is fitted with?

A

A one way clutch

26
Q

What type of starter is shown in the picture?

A

Pre-engaged

27
Q

A colleague suffers an electric shock when using an electric drill. Your first action is?

A

Switch off the power supply

28
Q

What would be the voltage of a cell in a fully charged battery?

A

2.1 volts

29
Q

An LED is a type of?

A

Light emitting diode

30
Q

A thermistor is a type of?

A

Sensor that is temperature sensitive

31
Q

What would be used to measure the specific gravity of a batteries electrolyte solution?

A

Hydrometer

32
Q

Which of the following is a true statement regarding the requirements of the Vehicle Lighting Regulations?

A

Vehicle lights must be maintained in working order at any time

33
Q

What would NOT cause an excessive voltage drop in a lighting circuit?

A

Light switch being left on

34
Q

A relay is normally fitted to a vehicle’s headlamp circuit to?

A

Reduce the current flow through the lighting switch

35
Q

Current flow in a circuit is measured using?

A

An ammeter

36
Q

The alternator stator is found?

A

In the casing

37
Q

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

A

In parallel

38
Q

In a vehicle alternator, the rectifier pack?

A

Converts AC to DC

39
Q

To avoid damaging an ammeter you should only connect?

A

In series with circuit components

40
Q

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

A

Open circuit supply cable

41
Q

The starter switch is operated and the starter motor turns very slowly. What would NOT be a cause of the fault?

A

A defective roller clutch

42
Q

What is the optimum charging voltage for a vehicle with a 12V electrical system?

A

14.4v

43
Q

An ammeter is in series with a 12 volt lamp and shows a current flow of 2 amps. What is the power rating of the lamp?

A

24 Watt

44
Q

The diagram shows two resistors R1 & R2. What is the reading on the ammeter labelled A2 and the voltmeter labelled V?

A

A2 = 6 Amps, V = 12 Volts

45
Q

What is the equation for watts law?

A

P=I*V

46
Q

What is the equation for ohms law?

A

V=I*R

47
Q

An electrical cable is designated as 28/0.30, what does this mean?

A

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

48
Q

An ohm meter?

A

Should not be used to test a battery.

49
Q

When disconnecting a battery, the first terminal to be disconnected must always be?

A

The earth terminal.

50
Q

When removing or repairing electronic communication systems or components it is advisable to?

A

Earth yourself to the car to discharge static electricity before starting to disconnect.

Imi automotive level 2 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions