| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.20 |
| Score | 0% | 64% |
What is the function of the head gasket?
to seal the exhaust system from the drive train |
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to connect the transmission to the drive train |
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to seal the brake assembly from external contaminants |
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to seal the engine block from the cylinders |
A head gasket is a gasket that sits between the engine block and cylinder heads to seal the cylinders to ensure maximum compression and avoid leakage of coolant or engine oil into the cylinders.
The primary purpose of the muffler is to:
cool the exhaust |
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reclaim unburned fuel |
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remove harmful gases from the exhaust |
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quiet exhaust |
The muffler follows the catalytic converter and absorbs sound to help quiet load exhaust. It is followed by the exhaust pipe which is the final exit point for exhaust gas from the vehicle.
What is the function of the alternator?
charges the battery when the car is not running |
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replaces the electrical energy that the car draws from the battery |
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provides AC power for the car's electrical components |
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converts motion from the wheels into DC power |
An automobile's electrical system runs on DC power and the bulk of that power is supplied by the battery. The alternator converts the motion of the rotor into AC power which is then fed through the rectifier to convert it to DC power that both the car and the battery can use.
What function does a two-stroke cycle engine perform on the second stroke?
fuel intake and compression |
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compression and combustion |
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fuel intake and exhaust |
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combustion and exhaust |
The two strokes of a two-stroke cycle engine are fuel intake and compression then combustion and exhaust.
Which of the following regulates the flow of coolant through the radiator?
thermostat |
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water pump |
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water jacket |
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crankshaft |
The thermostat controls coolant (and, through it, engine) temperature by regulating the flow of coolant through the radiator. A bypass tube allows coolant to bypass the radiator and flow back into the water pump when its temperature is low enough that the thermostat is closed.