| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.78 |
| Score | 0% | 76% |
Which engine stroke starts with the piston at top dead center?
exhaust stroke |
|
intake stroke |
|
power stroke |
|
compression stroke |
The four-stroke piston cycle of internal combustion engines starts with the piston at top of the cylinder head (top dead center or TDC) during the intake stroke. The piston moves downward in the cylinder creating a vacuum that pulls an air-fuel mix into the combustion chamber through the now open intake valve.
The air-fuel mixture is delivered to the combustion chamber by a(n):
intake valve |
|
air valve |
|
exhaust valve |
|
fuel valve |
The combustion chamber is located in the cylinder head and contains the combustion of the air-fuel mixture. This mixture is delivered by an intake valve and the waste gases from combustion are removed from the combustion chamber by the exhaust valve.
What provides the power necessary to start a car?
powertrain control module |
|
battery |
|
spark plugs |
|
alternator |
The battery supplies the power necessary to start the engine when the ignition switch is is turned on.
Waste gases from combustion are removed from the combustion chamber by the:
head gasket |
|
exhaust valve |
|
camshaft |
|
piston |
The combustion chamber is located in the cylinder head and contains the combustion of the air-fuel mixture. This mixture is delivered by an intake valve and the waste gases from combustion are removed from the combustion chamber by the exhaust valve.
Which of the following is not a component in the engine lubrication system?
oil filter |
|
pickup tube |
|
pressure relief valve |
|
differential |
In engine lubrication, oil remains in the oil pan until the engine is turned on. It then gets sucked up the pickup tube by the oil pump and pressurized. This pressure is moderated by the pressure relief valve and the oil is fed through the oil filter into the engine to lubricate it.