Chapter 3 2 cycle/4 cycle/and rotary engines

Fuel is drawn into the cylinder during the ____ stroke by the partial vacuum created by the _______ movement of the piston. 

• outtake, compression

• intake, downward

• intake, upward

• exhaust, power

In which two strokes are both valves closed?

• intake, compression

• power, intake

• exhaust, compression

• compression, power

The exhaust valve may be exposed to pressure as high as ___ pounds per square inch. 

• 100

• 400

• 200

• 500

If the compression ratio is too high, the fuel may be heated to its flash point and ignite too early. 

• True

• False

Which stroke is A?

• Intake

• Power

• Exhaust

• Compression

The two most common lubricating systems used on small engines are:

• a. governor and oil filter system

• b. splash system and pump system

• c. oil holes and spray nozzle

• d. cylinder system and complete system

What part is letter A?

• oil filler

• governor

• oil pump

• oil holes

The two cycle engine produces a power stroke on every:

• Two revolutions, while a four cycle engine produces a power stroke on every four revolutions.

• Revolution, while a four cycle engine produces a power stroke on every four revolutions.

• Stroke, while a four cycle engine produces a power stroke on every two strokes.

• Revolution, while a four cycle engine produces a power stroke on every two revolutions

Loop-scavenged engines have the transfer ports located:

• 180 degrees to the exhaust port

• 90 degrees to the exhaust port

• directly across from the exhaust port

• 15 degrees to the exhaust port

The transfer port on a two-cycle engine directs the air-fuel mixture from the ____ to the cylinder.

• a. exhaust

• b. crankcase

• reed

• d. oil filter