| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.80 |
| Score | 0% | 56% |
Which of the following regulates the flow of coolant through the radiator?
crankshaft |
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thermostat |
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water jacket |
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water pump |
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.
What is the pimary advantage of using power brakes on a vehicle?
utilizes battery power to assist in braking |
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provides higher hydraulic pressure in the braking system |
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allows the use of antilock brakes |
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requires less brake fluid to operate the braking system |
Power brakes multiply the force a driver applies to the brake pedal using a vacuum booster connected to the engine intake manifold. This provides for much higher hydraulic pressure in the braking system than could be generated by the driver alone. Antilock brakes (ABS) use speed sensors and adjust the brake pressure at each wheel to prevent skidding and allow the driver more steering control in slippery conditions.
Another name for a reciprocating engine is a(n):
external combustion engine |
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internal combustion engine |
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piston engine |
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cylinder engine |
A reciprocating engine is an engine whose crankshaft is turned by pistons moving up and down in a cylinder.
Coolant is circulated through the engine by the:
radiator |
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camshaft |
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water jacket |
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water pump |
The water pump is driven by a belt connected to the crankshaft and ensures that coolant moves through the engine and radiator.
What type of energy does an automotive battery produce?
chemical energy |
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direct current |
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rotational energy |
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alternating current |
An automotive battery produces direct current for use by automotive systems.