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Power Transfer Review

Total questions: 10

Worksheet time: 50mins

Name
Class
Date
1.

Small engines convert __________ from the combustion of fuel into mechanical energy.

a)

Phyiscal Energy

b)

Heat energy

c)

Compressed Air

d)

Kinetic energy

2.

True or False? Engine shaft orientation is based on the axis of the crankshaft as horizontal or vertical.

a)
True
b)
False
3.

The valves are opened by the lobes on the ________?

a)
Crankshaft
b)
Camshaft
c)
Tappets
d)
Timing Gear
4.
Power is transferred from the PISTON PIN > CONNECTING ROD > CONNECTING ROD CAP > _______________
a)
Crankshaft
b)
Valve Spring
c)
Dipstick
d)
Cam Lobe
e)
Valves (Intake/Exhaust)
5.
Power is transferred from the CRANKCASE COVER > CYLINDER HEAD > _______________
a)
Piston
b)
Valve Spring
c)
Dipstick
d)
Cam Lobe
e)
Valves (Intake/Exhaust)
6.
Power is transferred from the CAM LOBE > _______________ > VALVE SPRING RETAINER
a)
Tappet
b)
Valve Spring
c)
Dipstick
d)
Cam Lobe
e)
Valves (Intake/Exhaust)
7.

List the 4 Strokes of Compression, or otherwise known as the 4 Stroke Theory of a small gas engine.

a)

Intake

b)

Compression

c)

Power/Ignition

d)

Exhaust

1)
2)
3)
4)
8.

Indicate what direction the piston is traveling at each stroke.

Categorize the following

Intake

Power/Ignition

Compression

Exhaust

Top Dead Center (TDC)
Bottom Dead Center (BDC)
9.

Match the compression stroke to the position of the Intake Valve.

a)

Intake

1.

Open

b)

Compression

2.

Closed #1

c)

Power/Ignition

3.

Closed #2

d)

Exhaust

4.

Closed #3

10.

Match the compression stroke to the position of the Exhaust Valve.

a)

Intake

1.

Closed #1

b)

Compression

2.

Closed #2

c)

Power/Ignition

3.

Closed #3

d)

Exhaust

4.

Open