Reciprocating Engines Flashcard #1

Front

What is thermal efficiency?

Back

The ratio of the amount of heat energy converted into useful work in a system.

Front

What component converts reciprocating motion to rotary motion in an engine?

Back

Crankshaft.

Front

What is the product of force times distance known as?

Back

Work.

Front

What occurs during the power stroke of a 4-stroke engine?

Back

The piston moves downwards due to the explosion of the air-fuel mixture.

Front

What generates power in an internal combustion engine?

Back

The force of expanding gases after combustion.

Front

Define specific heat.

Back

The amount of heat required to raise the temperature of a unit mass of a substance by one degree Celsius.

Front

What is the function of a piston in a reciprocating engine?

Back

To convert the pressure from combustion into linear motion.

Front

What is the role of the camshaft in an engine?

Back

To control the timing of the opening and closing of the engine's valves.

Front

Explain the concept of entropy in thermodynamics.

Back

A measure of the disorder or randomness in a system, often associated with energy dispersal.

Front

What is the difference between power and work?

Back

Power is the rate at which work is done, while work is the total energy transferred.