| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.05 |
| Score | 0% | 61% |
When a car engine is running, what provides electrical current to recharge the battery and power the electrical system?
battery |
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solenoid |
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camshaft |
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alternator |
Once the engine is running, the alternator provides electrical current to recharge the battery and power the electrical system. The alternator is driven by the engine's crankshaft and produces alternating current (AC) which is then fed through a rectifier bridge to convert it to the direct current (DC) required by the electrical system. A voltage regulator controls the output of the alternator to maintain a consistent voltage (approx. 14.5 volts) in the electrical system regardless of load.
How are the cylinders numbered in V-type engines?
cylinder numbering varies by manufacturer |
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sequentially from the front of the engine to the back |
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sequentially from the back of the engine to the front |
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alternating from the front of the engine to the back |
In V-type engines the numbering sequence varies by manufacturer.
Which of the following enables heat transfer from the cylinder heads to the coolant?
water sleeve |
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radiator |
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water jacket |
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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.
Engines with radial cylinder configurations are most common in:
heavy truck engines |
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aircraft engines |
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train 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 distributor is responsible for:
timing the spark and distributing it to the correct cylinder |
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recharging the battery |
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utlizing battery power to start the engine |
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distributing power to the correct drive wheels |
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.