Unit Test Carburetors and Engine Components

What is the main purpose of a carburetor?

• store fuel

• clean the fuel

• maintain constant velocity

• mix fuel and air

What is the term for the hollow tube that houses the piston?

• cylinder head

• valve cover

• cylinder

• combustion chamber

What attaches the piston to the crankshaft?

• connecting rod

• crankpin

• rod cap

• piston rings

What three governor types are used in small gasoline engines?

• manual, mechanical, automatic

• pneumatic, mechanical, electronic

• hydraulic, electronic, manual

• automatic, pneumatic, mechanical

Which engine component is connected to the end of the crankshaft to maintain power through the non-power producing strokes of a four cycle engine?

• armature

• Flywheel

• clutch

• Crankpin

In which stroke of the piston are spent gasses from the combustion of the air-fuel mixture forced out of the combustion chamber?

• power stroke

• intake stroke

• exhaust stroke

• compression stroke

During which stroke is the air-fuel mixture ignited by the spark plug, forcing the piston down the cylinder?

• power stroke

• intake stroke

• exhaust stroke

• compression stroke

As the piston moves down during the intake stroke, what is created in the combustion chamber that allows the air-fuel mix to enter?

• compression

• Pressure

• density

• Vacuum

Four cycle engines require four strokes of the piston, how many revolutions of the crankshaft does this represent?

• 1

• 2

• 3

• 4

In simple terms, electricity is the movement of which atomic particle?

• proton

• neutrons

• quarks

• electrons