| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
Engines with radial cylinder configurations are most common in:
heavy truck engines |
|
tank engines |
|
train engines |
|
aircraft engines |
A radial arrangement places cylinders in a circle around the crankshaft and is used almost exclusively in aircraft engines.
Both intake and exhaust valves are closed as the piston begins moving back up from the bottom of the cylinder, compressing the air-fuel mixture in the combustion chamber which also makes it hotter. This describes which engine stroke?
power |
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compression |
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intake |
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exhaust |
During the compression stroke, both intake and exhaust valves are closed as the piston begins moving back up from the bottom of the cylinder (bottom dead center or BDC). This compresses the air-fuel mixture in the combustion chamber which also makes it hotter.
Control arms connect a vehicle's suspension to the frame. The connection to the frame uses:
bushings |
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pins |
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ball joints |
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knuckles |
Control arms (upper and lower) connect a vehicle's suspension to the frame. The connection to the wheels is through ball joints which allow the control arms to turn and move up and down simultaneously. The frame connection uses bushings.
Which of the following is not a component in the engine lubrication system?
pickup tube |
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differential |
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pressure relief valve |
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oil filter |
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.
What links each piston to the engine's crankshaft?
piston ring |
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cylinder arm |
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connecting rod |
|
halfshaft |
A connecting rod employs a wrist pin to link each piston to the engine's crankshaft.