An engine is a device that changes _________ energy in fuel to __________ energy.

In a four stroke engine, gasoline must be mixed with the correct amount of _____________.

Which valve is open during the exhaust stroke?

During the intake stroke, the piston travels to __________.

The _______ stores rotational energy and keeps the crankshaft spinning smoothly.

Which valve is open during the compression stroke?

During a four stroke engine cycle, the crankshaft makes how many rotations?

Two stroke engines complete all events in ______ strokes.

This links the piston to the crankshaft.

A _________ is the full travel of the piston, in either direction.

In which event is the piston driven down by the expansion of the burning air/fuel mixture?

In which event is a mixture of fuel and air drawn into the cylinder?

Converts reciprocating motion into rotating motion.

In which event is the air/fuel mixture compressed into a space and ignited by a spark?

In which event are the burn gases expelled from the cylinder?

Diesel engines use glow plugs to _______ the compressed air, causing it to combust.

Which is NOT true of 2-stroke engines?

The bore in which a piston operates is the ________.

Gives the engine balance.