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Small Engines Test 1 Review

Total questions: 40

Worksheet time: 21mins

Name
Class
Date
1.

A gasoline engines transforms chemical energy into __________ energy for doing useful work.

a)

Potential

b)

Mechanical

c)

Combustion

d)

Force

2.

A gasoline engine is an internal ___________ engine.

a)

Combustion

b)

Steam

c)

Component

d)

Fuel

3.

In an internal combustion engine, the gasoline is combined with _____ and burned inside the engine.

a)

Water

b)

Fuel

c)

Air

d)

Oil

4.

Gasoline must be __________ to increase the surface area, making it easier to ignite.

a)

Atomized

b)

Vented

c)

Tumbled

d)

Vacuumed

5.
What is the correct order of the strokes in a 4-stroke cycle engine?
a)
intake, exhaust, compression and power
b)
compression, power, exhaust and intake
c)
intake, compression, power and exhaust
d)
intake, power, compression and exhaust
6.
On the __________ stroke of an engine, the piston is going down, one valve is open and the other valve is closed and air and fuel are being drawn into the cylinder.
a)
intake
b)
exhaust
c)
power
d)
compression
7.
On the __________ stroke of an engine, the piston is going up, one valve is open and the other valve is closed and the fumes are leaving the cylinder.
a)
intake
b)
exhaust 
c)
compression
d)
power
8.
On which two strokes are both valves closed?
a)
compression and power
b)
power and exhaust
c)
power and intake
d)
compression and intake
9.
During the intake stroke the piston moves________
a)

Towards TDC

b)
in both directions
c)

Across the Cylinder

d)

Towards BDC

10.
During the compression stroke the piston moves________
a)

Towards TDC

b)
in both directions
c)
the hot gasses out of the cylinder
d)

Towards BDC

11.
During the power stroke the piston moves________
a)

Towards TDC

b)
down slighty
c)
in both directions
d)

Towards BDC

12.
During the exhaust stroke the piston moves________
a)

Towards TDC

b)
in both directions
c)
the head bolts
d)

Towards BDC

13.
An event that ignites the fuel air mixture occurs between the _______stroke and the _________stroke
a)
compression and power
b)
power and intake
c)
intake and power
d)
compression and intake
14.
During an intake stroke the intake valve is _________
a)
Pressurized
b)
Inactive
c)
Closed
d)
Opened
15.

The crankcase is a reservoir for _______

a)
Water
b)
Gasoline
c)
Oil
d)
Spark
16.

The camshaft opens and closes the intake and exhaust valves:

a)

at the same time

b)

opposite each other

c)

At the right time for the right amount of time

d)

the right amount of time

17.
Valve overlap is when both valves are:
a)
closed
b)
open
c)
both a and b
d)
neither a nor b
18.

A ___ must be used on each valve to hold it firmly against the seat.

a)
grinding compound 
b)
valve spring 
c)
valve tappet
d)
valve push rod
19.
An operating cycle requires two revolutions ____of the crankshaft which equals how may degrees of rotation
a)
120°
b)
720°
c)
180°
d)
360°
20.

The term TDC stands for___ ___ ___

a)
Top Dead Crown
b)
Top Distant Center
c)
Top Dead Center
d)
Top Dead Cylinder
21.

The term BDC stands for___ ___ ___

a)
Bottom Dead Center
b)
Bottom Distant Center
c)
Both Dead Center
d)
Below Dead Center
22.

To make a small engine easier to start. The engine may have an automatic ___ release mechanism.

a)
Compression
b)
Oil
c)
Combustion
d)
Spark
23.
a)
Piston
b)
Crankshaft
c)
Camshaft
d)
Piston head
24.
a)
Piston
b)
Crankshaft
c)
Camshaft
d)
Piston head
25.
a)
Piston
b)
Fuel Tank
c)
Piston Rings
d)
O Rings
26.
a)
Piston
b)
Fuel Tank
c)
Camshaft
d)

Crankshaft

27.

What is B pointing to?

a)

Crank Pin Journal

b)

PTO Journal

c)

Magnito Journal

d)

Counter Weights

28.

What is A pointing to?

a)

Crank Pin Journal

b)

PTO Journal

c)

Magnito Journal

d)

Counter Weights

29.

What is D pointing to?

a)

Crank Pin Journal

b)

PTO Journal

c)

Magnito Journal

d)

Counter Weights

30.

What is E pointing to?

a)

Crank Pin Journal

b)

PTO Journal

c)

Magnito Journal

d)

Crank Gear

31.

What is C pointing to?

a)

Crank Pin Journal

b)

PTO Journal

c)

Magnito Journal

d)

Crank Gear

32.

What part is this?

a)

Piston Holder

b)

Engine Block

c)

Crankshaft

d)

Engine Bore

33.

What part is this?

a)

Wrist Pin

b)

Slinger

c)

Connecting Rod

d)

Piston

34.

What part is this?

a)

Magnito

b)

Inertia

c)

Fan

d)

Flywheel

35.

What part is this?

a)

Camshaft

b)

Valves

c)

Tappets

d)

Lifters

36.

What is A pointing to?

a)

Piston Pin Bore

b)

Skirt

c)

Piston Head

d)

Lands

37.

What is B pointing to?

a)

Piston Pin Bore

b)

Skirt

c)

Piston Head

d)

Lands

38.

What is E pointing to?

a)

Piston Pin Bore

b)

Skirt

c)

Piston Head

d)

Lands

39.

This is the groove machined into the piston (C)

a)

Piston Pin Bore

b)

Skirt

c)

Piston Head

d)

Ring Groove

40.

This is the full diameter in between the ring grooves (D)

a)

Piston Pin Bore

b)

Skirt

c)

Piston Head

d)

Lands

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