## Questions and Answers

What is the primary principle of operation for a diesel engine?

Compression ignition

What is the unit of measurement for force in the Imperial system?

Pounds

What is the formula for work?

Work = force multiplied by distance

What type of ignition is used with fuels such as gasoline and propane?

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What is the definition of force?

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What is the unit of measurement for work in the Imperial system?

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What is the unit of measurement for torque in the metric system?

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What is the formula to calculate the area of a cylinder?

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What is the term used to describe the distance that a piston moves from top dead centre to bottom dead centre?

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What is the unit of measurement for engine displacement in the imperial system?

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What is the formula to calculate engine displacement?

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What is the term used to describe the diameter of a cylinder?

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What is the unit of measurement for compression ratio?

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What is the formula to calculate compression ratio?

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What is the relationship between engine displacement and power output?

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What is the device used to measure engine torque?

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What is the primary reason a diesel engine requires a higher compression ratio than a gasoline engine?

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What is the unit of measurement for heat value in the metric system?

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What is the percentage of heat energy lost to overcome friction in an internal combustion engine?

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What is the purpose of a turbocharger or blower in an engine?

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What is the difference between indicated horsepower and brake horsepower?

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What is the formula to calculate brake horsepower?

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What is the effect of engine speed on volumetric efficiency?

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What is the percentage of an engine's theoretical power that is typically lost to overcome internal friction?

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What is the definition of one horsepower?

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