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Principle of Engine Operation

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Select the proper order of the four strokes in a small engine

a)

Compression, Exhaust, Power, Intake

b)

Intake, Power, Exhaust, Compression

c)

Intake, Compression, Power, Exhaust

d)

Compression, Intake, Exhaust, Power

2.

During an intake stroke the _______ moves down and creates a___________

a)

Piston + Positive Pressure

b)

Piston + Vacuum

c)

Flywheel + Spark

d)

Piston + Explosion

3.

During an intake stroke the intake valve is _________

a)

Pressurized

b)

Inactive

c)

Closed

d)

Opened

4.

During a compression stroke the _______ moves upward and ___________

a)

Piston + the exhaust valve is opened

b)

Piston + the intake valve is opened

c)

Piston + compresses fuel air mixture

d)

Piston + Both valves are opened

5.

During a power stroke the piston moves down with_____  ___________

a)

A Vaccum

b)

Great Force

c)

Large Spark

d)

Valves Opened

6.

During a power stroke ____ valves are _______

a)

Both + Closed

b)

Both + Opened

c)

Both + Inactive

d)

None of the above

7.

During the exhaust stroke the piston moves______

a)

Up

b)

Down

c)

Sideways

d)

The Intake vavle

8.

The intake valve is associated with the _________

a)

Flywheel

b)

Muffler

c)

Carburetor

d)

Sump

9.

Spark occurs between the _____ stroke + the ______ stroke 

a)

Compression + Power

b)

Compression + Exhaust

c)

Power + Exhaust

d)

Intake + Compression

10.

The exhaust valve is associated with the _________

a)

Flywheel

b)

Muffler

c)

Carburetor

d)

Sump