| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
Coolant is circulated through the engine by the:
radiator |
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camshaft |
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water pump |
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water jacket |
The water pump is driven by a belt connected to the crankshaft and ensures that coolant moves through the engine and radiator.
Gases from combustion are pushed out through the exhaust valve as the piston travels up the cylinder to top dead center. This describes which engine stroke?
exhaust |
|
compression |
|
power |
|
intake |
During the exhaust stroke, just before the piston reaches bottom dead center the exhaust valve opens. The resulting gases from combustion are then pushed out through the exhaust valve as the piston travels up the cylinder to top dead center, completing stroke four of the four-stroke piston cycle.
Which of the following statements about v-type cyllinder arrangement is false?
has an odd number of cylinders |
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has two rows of cylinders |
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engine is shorter than an inline engine |
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common in motorcycles, cars, and trucks |
A v-arrangement has two rows of cylinders in a V-shaped block with a crankshaft at the bottom of the V. Any even number of cylinders is possible in this configuration from the V-2 that's commonly used in motorcycles up to V-12 or bigger for large trucks. The V design produces a shorter engine than an in-line cylinder configuration and allows for better air-fuel distribution.
The intake ports on the cylinder heads is fed outside air via the:
intake control module |
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intake pressure regulator |
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intake manifold |
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intake air pump |
The intake manifold distributes outside air to the intake ports on the cylinder heads. The intake air filter removes any airborne contaminants before the air enters the engine.
Which of the following regulates the opening and closing of the intake and exhaust valves in each cylinder in time with the motion of the piston?
connecting arm |
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halfshaft |
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crankshaft |
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camshaft |
The camshaft is linked to the crankshaft through a timing belt and regulates the opening and closing of the intake and exhaust valves in each cylinder in time with the motion of the piston. An engine designated OverHead Camshaft (OHC) locates the camshaft in the cylinder head. An engine with Double OverHead Camshaft (DOHC) has two camshafts, one to regulate the intake valves and one to regulate the exhaust valves.