| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.32 |
| Score | 0% | 66% |
What combines the suspension spring and shock absorber into one unit?
wheel hub |
|
strut |
|
wheel cylinder |
|
knuckle |
Because a compressed spring will extend violently, shock absorbers must be used to dampen the spring’s compression and extension cycles. Struts combine the spring and shock into one unit
The ignition coil is a(n):
step-up transformer |
|
filter |
|
step-down transformer |
|
amplifier |
The ignition coil steps up the 12 volts available from the battery or alternator to a voltage of 30,000 or more volts at the spark plug. Converting a lower voltage input into a higher voltage output makes the ignition coil a step-up transformer.
Which of the following is the correct order for the engine stroke cycle?
intake, power, compression, exhaust |
|
compression, intake, power, exhaust |
|
power, intake, compression, exhaust |
|
intake, compression, power, exhaust |
The stroke cycle order is intake stroke, compression stroke, power stroke, exhaust stroke.
The right front wheel of your front-wheel drive car drops into a pothole and the left front wheel doesn't lose contact with the road. Which of the following is true?
your car has an independent front suspension |
|
your car has a rigid axle rear suspension |
|
your car has a rigid axle front suspension |
|
your car has an independent rear suspension |
An independent suspension allows the wheels on either side of an axle to move independently from each other. The fact that the left front wheel didn't move up in response to the right front wheel moving down is evidence of this.
Which of the following is the result of combustion being initiated by a source other than the spark plug?
detonation |
|
pre-ignition |
|
ignition |
|
pre-combustion |
Normal combustion in an engine is initiated by a spark plug and results in the complete burning of the air-fuel mixture. If combustion is initiated by a source other than the spark plug, by a hot spot in the cylinder or combustion chamber for example, pre-ignition results. Detonation results if the air-fuel mixture explodes instead of burning. Detonation can cause extremes in pressure in the combustion chamber leading to engine damage.