Internal Combustion Engines

Multiple Choice

A(n) ______ is a device that changes the chemical energy in fuel to mechanical energy.

• camshaft

• piston

• engine

• cylinder

Match

Match the following

• the bore in which the piston travels

• an engine part that slides back and forth in a cylinder

• an engine part that links a piston to the crankshaft

• an engine part that converts reciprocating motion created by the engine pistons to rotating motion

cylinder

piston

connecting rod

crankshaft

• cylinder

• piston

• connecting rod

• crankshaft

Multiple Choice

A ______ refers to the full travel of the piston in the cylinder

• stroke

• jet

• piston

• venturi

Multiple Choice

A ______ is a device used to store rotational energy.

• camshaft

• jet

• piston

• flywheel

Multiple Choice

The _____ is a lobed shaft that is used to open and close the valves.

• camshaft

• jet

• piston

• flywheel

Open Ended

What are the differences between a two-stroke engine and a four-stroke engine?

Multiple Choice

Four-stroke engines are commonly installed on handheld power equipment due to their smaller size and reduced weight.

• True

• False

Multiple Choice

The ____ seals the combustion chamber.

• engine block

• cylinder head

• pistons

• connecting rod

Open Ended

How is valve timing accomplished?

Multiple Choice

A9n) _____ is a device that transforms low-voltage current into high-voltage current that can cause a spark to ignite the fuel and air mixture in an engine.

• engine block

• cylinder head`

• ignition coil

• connecting rod

Multiple Choice

Engines are either air cooled or liquid cooled.

• True

• False