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AE06 - Advanced Electrics Flashcards | StudBud
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AE06 - Advanced Electrics
AE06 - Advanced Electrics
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1
An item that allows current to flow in one direction until a specific threshold, is known as a
Rectifier
Transistor
Zener diode
Capacitor
2
what system on a vehicle uses a sun load sensor
Central door locking
A car alarm
Climate control
An electric window
3
In relation to cooling and air conditioning what is meant by the term convection?
The transfer of heat using waves or particles
The difference in air pressure
Flow of heat though a material
Transfer of head which involves a fluid
4
What effect will the effect of a lamp with a poor earth connection
The lamp will be brighter
The bulb will blow
The circuit fuse will blow
Lamp will be dim
5
When testing an inductive speed sensor what would you expect to happen as it slowed
An increasing A.C Voltage
An decreasing D.C Voltage
An decreasing A.C Voltage
An increasing D.C Voltage
6
What will be the symptoms if the alternator charge warning light has blown
The alternator will only charge at idle
The alternator will overcharge
The alternator will only charge at high revs
The alternator will not charge
7
In an SRS system what occurs from 10 to15 milliseconds after impact
The airbag deflates and the pre tensioners loosen
The air bag is inflated then the pre tensioners tighten up.
The pre tensioners start to tighten then airbag inflates
The airbag inflates and the pre tensioners loosen
8
What is this
Transistor
A fuse
A solenoid switch
An Integrated Circuit
9
To check for a parasitic drain connect a voltmeter parallel to the battery an turn consumers on
True
False
10
An advantage of multiplex/Can systems compared to conventional wiring is that it saves weight
True
False
11
What reading would be expected when checking the feed to the terminals on a front heated screen
Within 1.75 of the battery voltage
Within 4.6v of the battery voltage
Within 2.5v of the battery voltage
Within 0.5v of the battery voltage
12
What's the electrical principle used to stop wiper systems against momentum once switched off
Reactive braking
Electromagnetic induction
Regenerative braking
Electromotive force
13
What is the reflective part of an headlight called.
A condenser
A parabolic
A lense
A prism
14
How is the compressor engaged on an air conditioning system
Electromagnetically
using a solenoid
Using magnets
Mechanicaly
15
On a hybrid electrical vehicle regenerative braking is when the
The brake fluid recuperates
Motor acts as a generator
Generator acts as a motor
Parking brake is slowly applied
16
Which of the following statements is correct
1 Hertz = 360 degrees rotation
Hertz is the unit of magnetic flux
The unit of power is the hertz
1 Hertz = 1 cycle per second
17
How many motors are there on an electric mirror
4
1
2
5
18
The function of the low pressure switch in a air conditioning system is to?
Disconnect the compressor due to low gas/liquid level
Regulate refrigerant flow when the system is switched on
Reduce evaporator temperature when required
Increase air flow through the condenser
19
An electric window circuit when at rest is found to have 12v in both motor wires this is
Incorrect as this would cause the motor armature to turn
Incorrect there shouldn't be voltage when the motor's still
Normal as it protects the fuse
Correct as one of the wires will switch to earth
20
The pattern shown on a oscilloscope of an inductive type sensor would be a
Sine wave
Saw tooth
Cosine wave
Square wave
21
How many satellites need to be in view for a sat nav to work
3
6
1
2
22
A strain gauge pressure sensor incorporates the use of
A thermister
Magnetic inductors
Piezo crystals
Sensing resistors
23
What does a central door locking actuator contain
Solenoid and rocker switch
Solenoid and gear
Motor and solenoid
Drive motor and gear
24
An ohms test on a Thermister indicates 0C=4500 ohms 100C 200 ohms this type of thermister is
Positive temperature coefficient
Negative Temperature coefficient
An inductive pick up sensor
Piezo crystal pressure sensor
25
What type of trace would you expect on an oscilloscope when testing a hall-effect sensor
Saw tooth
Sine wave
Cosine Wave
Square wave
26
What should the resistance reading be on a door contact switch when the door is closed
10k
Infinity
100 ohms
0 ohms
27
A diesel glow plug is suspected to be faulty the test to be carried out would be
An amperage check with an ohmmeter
A switching check with an oscilloscope
A resistance test with an ohmmeter
A voltage check with an ohmmeter
28
It is good practice to isolate the power supply to prevent damaged to electrical components
True
False
29
What are the main advantages of using a LED lighting system?
Quick reaction and greater reliability
Slow reaction time increasing life expectancy
They are cheaper to produce
They produce a bright blue light from 1 LED
30
Which of the following suppression techniques is commonly used in the ignition HT circuit?
Capacitors
Resistors
Bonding
Inductors
31
What would the symptom be if the system earth failed on an electric window circuit
Window would not operate
Window would only go down
Window would only go down
The window motor would be loud
32
A HID gas discharge bulb contains what
Wire elements,helium gas and metal salts
Electrodes,argon,silver and metal salts
A tungsten electrode,silver and metal salts
Electrodes, Xenon, mercury and metal salts
33
Flemmings left hand rule is related to what
Ohms law
Capacitors
Generators
Motors
34
When checking an electric window or mirror, what should be checked first
Motor
Wring
Switch
Fuse
35
What happens to an inductive wheel speed sensor when the wheel rotates faster?
Voltage increases and the frequency increases
Voltage remains the same and the frequency remains the same
Voltage increases and the frequency remains the same
Voltage remains the same and the frequency increases
36
What does PWM stand for
Pulse width modulation
Pulse weighted motors
Pulse wired motors
Primary wired modules
