| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.67 |
| Score | 0% | 53% |
__________ results from oil buildup in the combustion chamber.
engine knock |
|
preignition |
|
detonation |
|
combustion |
Preignition results from the buildup of fuel deposits and/or oil in the combustion chamber. These deposits increase chamber pressure and reduce heat tranfer to the coolant. The trapped heat then raises the temperature of the air-fuel mix to the point that it combusts before ignition.
What is the function of the alternator?
charges the battery when the car is not running |
|
provides AC power for the car's electrical components |
|
converts motion from the wheels into DC power |
|
replaces the electrical energy that the car draws from the battery |
An automobile's electrical system runs on DC power and the bulk of that power is supplied by the battery. The alternator converts the motion of the rotor into AC power which is then fed through the rectifier to convert it to DC power that both the car and the battery can use.
The wheel __________ is the mounting point for the wheel and tire assembly.
shaft |
|
hub |
|
knuckle |
|
base |
The wheel hub is the mounting point for the wheel and tire assembly. The wheel hub can rotate while being held stable by the steering knuckle which applies the motion of the control arms to the wheels.
A __________ is a drive axle that extends from a transaxle or differential to one of the drive wheels.
half shaft |
|
steering linkage |
|
control arm |
|
drive shaft |
A half shaft is a drive axle that extends from a transaxle or differential to one of the drive wheels. There are two half shafts per drive axle, one for each wheel, each doing "half" the job.
Which of the following enables heat transfer from the cylinder heads to the coolant?
radiator |
|
water jacket |
|
water sleeve |
|
water pump |
A water jacket is a coolant-filled casing that allows heat transfer from the engine block and cylinder heads to the liquid coolant.