| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.10 |
| Score | 0% | 62% |
What function does a two-stroke cycle engine perform on the second stroke?
combustion and exhaust |
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compression and combustion |
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fuel intake and exhaust |
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fuel intake and compression |
The two strokes of a two-stroke cycle engine are fuel intake and compression then combustion and exhaust.
The fuel injectors are fed fuel by the:
fuel pressure regulator |
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powertrain control module |
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electric fuel pump |
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fuel return line |
The electric fuel pump feeds pressurized fuel through a fuel filter to the fuel injectors via the fuel rail manifold. The fuel rail contains the fuel pressure regulator which ensures that the fuel injectors receive fuel at a consistent and known rate. Excess fuel bled off by the pressure regulator returns to the fuel tank through the fuel return line.
Engines with radial cylinder configurations are most common in:
tank engines |
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train engines |
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aircraft engines |
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heavy truck engines |
A radial arrangement places cylinders in a circle around the crankshaft and is used almost exclusively in aircraft engines.
The piston moves downward in the cylinder creating a vacuum that pulls an air-fuel mix into the combustion chamber. This describes which engine stroke?
power |
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exhaust |
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intake |
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compression |
The four-stroke piston cycle of internal combustion engines starts with the piston at top of the cylinder head (top dead center or TDC) during the intake stroke. The piston moves downward in the cylinder creating a vacuum that pulls an air-fuel mix into the combustion chamber through the now open intake valve.
The catalytic converter output consists primarily of:
oxygen |
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carbon monoxide |
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gasoline |
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water and carbon dioxide |
The catalytic converter converts pollutants in exhaust gas into less pollutant substances like carbon dioxide and water.