| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.98 |
| Score | 0% | 60% |
__________ results from oil buildup in the combustion chamber.
detonation |
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preignition |
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engine knock |
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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.
The firing order of the cylinders in an engine can be found by:
reversing the cylinder number |
|
identifying the cylinder number |
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observing the order in which the intake valves open |
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observing the direction in which the intake valves open |
The firing order of the cylinders in an engine is different than the cynlinder numbers and can be found by observing the order in which the intake valves open.
The distributor is responsible for:
utlizing battery power to start the engine |
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distributing power to the correct drive wheels |
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timing the spark and distributing it to the correct cylinder |
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recharging the battery |
The distributor is driven by the engine's camshaft and is responsible for timing the spark and distributing it to the correct cylinder. The distributor cap contains a rotor that connects the ignition coil (and its high voltage) to the proper cylinder at the proper point in the stroke cycle.
Engines with radial cylinder configurations are most common in:
heavy truck engines |
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train engines |
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aircraft engines |
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tank engines |
A radial arrangement places cylinders in a circle around the crankshaft and is used almost exclusively in aircraft engines.
The catalytic converter output consists primarily of:
water and carbon dioxide |
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oxygen |
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carbon monoxide |
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gasoline |
The catalytic converter converts pollutants in exhaust gas into less pollutant substances like carbon dioxide and water.