Chapter 14

The spent fuel-air charge is expelled from the engine.

Exhaust

Four-stroke cycle engines do not have an internal oil reservoir, but two-stroke cycle engines do.

False

Which of the following is engine oil not responsible for?

Helping to provide fuel to the engine.

What is the camshaft responsible for?

Holding valves open

Fresh air and fuel enter the combustion chamber.

Intake

What does the flywheel on a small gas engine do?

Smoothes out reciprocation between power strokes.

Which of the following is not a part of the carburetor?

The camshaft

What is the mathematical relationship between the volume available in the cylinder with the piston at bottom dead center (BDC) and the volume available in the cylinder with the piston at top dead center (TDC) known as?

The compression ratio

Fuel and lubricant are mixed together and burned in a two-stroke cycle engine. Only fuel is burned in a four-stroke cycle engine.

True

Two-stroke cycle engines have a power stroke every other stroke (instead of every fourth stroke).

True

If your small gas engine will not start and you know it has fuel, a logical troubleshooting step would be to:

Check for spark.

The fuel-air charge is compressed.

Compression

Which of the following devices is responsible for keeping an engine running at a relatively constant rate of speed under various load conditions?

A governor

The fuel-air charge is ignited. The force of expanding gases pushes down on the piston.

Power