Vehicle Electrical And Electronic Diagnosis 2
A quiz aimed at level 3 students working towards IMIA qualifications
- 1.Which of the following are benefits of a circuit breaker over a traditional fuse?
- A.
More expensive to produce but can be reset manually
- B.
Easier to replace than a traditional fuse
- C.
Amp rating can be adjusted to add additional circuits
- D.
Quick reaction time and greater reliability
- 2.A customer complains that their heater fan only works on the high speed setting what is the most common fault?
- A.
Motor Brush Failure
- B.
Resistor Pack Fault
- C.
Broken Switch
- D.
Fuse Blown
- 3.What two components would you expect to find within a door lock actuator?
- A.
Motor and gear
- B.
Solenoid and gear
- C.
Motor and solenoid
- D.
Relay and Motor
- 4.When testing an electric window fault it appears that battery voltage is being recieved at both sides of the motor, is this correct or incorrect?
- A.
Incorrect as the motor would burn out
- B.
Correct, as one of the voltages will change when operated
- C.
Correct as both of the voltages would drop to zero when operated
- D.
Incorrect, as the motor requires a difference in voltages to operate
- 5.When related to multiplexed systems which is the most accurate statement?
- A.
A traditionally wired electrical systems seding and recieving signals to remote control units
- B.
A traditionally wired electrical system incorporating electronic components
- C.
A data bus system recieving signals from remote control units
- D.
A data bus system carrying signals to and from remote control units
- 6.If a GPS unit fails to locate a vehicle posistion what is the most likely fault?
- A.
The system has not located the satelittes yet and would continue to send and recieve signals until an exact location is achieved.
- B.
The system needs a minimum of four satelittes in view to operate
- C.
The system needs an input from various sensors on the vehicle to pin point location
- D.
Only two satellites are in view of the reciever
- 7.If an air conditioning system is controlled by an ECU to gain optimum temperature control within the cabin this is often referred to as....
- A.
Climate Control System
- B.
Cimate Adjustment System
- C.
Automatic Air Conditioning System
- D.
Air Conditioning
- 8.If a leak in an air conditioning system was present what would you expect to happen?
- A.
The TXV Valve would prevent refrigerant flow
- B.
The system would operate normally unit the gas had been exhausted
- C.
The compessor would have its drive disconnected due to low level refrigerant
- D.
The system would regulate the refrigerant flow for optimum performance
- 9.If an open circuit within the earth circuit was identified on an electric window what would be the most likely outcome
- A.
The window would not go down
- B.
The window would not operate at all
- C.
The window would go down but not go back up
- D.
The window would operate normally as it has a switched earth
- 10.What is the term used when a DC motor uses the electrical charge held within the armature to prevent the effects of inertia when power is removed?
- A.
Regenerative braking
- B.
Regenerative rotation
- C.
Rotational braking
- D.
Electromagnetic braking
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