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Small Engines

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.
Identify the part?
a)
Wrist Pin
b)
Connecting Rod
c)
Tappet
d)
Camshaft
2.
Identify the part?
a)
Wrist Pin
b)
Connecting Rod
c)
Crankshaft
d)
Piston 
3.
Identify the part?
a)
Flywheel
b)
Camshaft
c)
Crankshaft
d)
Piston 
4.
Identify the part?
a)
Piston
b)
Connecting Rod
c)
Tappet
d)
Piston Rings
5.
Identify the part?
a)
Piston
b)
Block
c)
Cylinder Head
d)
Piston Rings
6.
Identify this part?
a)
Crankcase cover
b)
Cylinder Head
c)
Engine Block
d)
Cylinder Head Gasket
7.
Identify this part?
a)
Spark Plug
b)
Cylinder Head
c)
Armature
d)
Cylinder Head Bolt
8.
Identify this part?
a)
Crankshaft
b)
Oil slinger
c)
Camshaft
d)
Flywheel
9.
Identify this part?
a)
Crankshaft
b)
Cylinder Head
c)
Cylinder Head Gasket
d)
Heat Shield
10.
Identify this part?
a)
Crankshaft
b)
Cylinder Head
c)
Carburetor
d)
Heat Shield
11.

What is the third stroke of an engines

a)

Exhaust

b)

Intake

c)

Compression

d)

Power

12.

What is the number one shop safety rule?

a)

Report all accidents to the instructor

b)

Always wear safety glasses

c)

No horseplaying

d)

Know where the fire extinguishers are located

13.

What is the first stroke of an engine?

a)

Compression

b)

Intake

c)

Power

d)

Exhaust

14.

What is the last stroke of an engine?

a)

Exhaust

b)

Power

c)

Compression

d)

Intake

15.

What are the three main engines systems

a)

Ignition, Compression, Fuel

b)

Intake, Compression, Exhaust

c)

Intake, Fuel, Compression

d)

Spark, Fuel, Compression

16.

What are the two valves called?

a)

Exhaust, Intake

b)

Intake, Outtake

c)

Ignition, Exhaust

d)

Up, Down

17.
Identify the proper order of the four strokes in a small engine
a)
intake, compression, exhaust, power 
b)
intake, compression, power, exhaust
c)
intake, power, construction, exhaust
d)
exhaust, compression, power, intake
18.
During the intake stroke the piston moves________
a)
up
b)
in both directions
c)
the head bolts
d)
down
19.
During the compression stroke the piston moves________
a)
up
b)
in both directions
c)
the hot gasses out of the cylinder
d)
down
20.
During the power stroke the piston moves________
a)
up
b)
down slighty
c)
in both directions
d)
down
21.
Match marks are on the _______and the ____________
a)
crankshaft and connecting rod
b)
crankshaft and shroud
c)
crankshaft and camshaft
d)
camshaft and govenor
22.
Combustion of the fuel air mixture occurs in the ____________
a)
Crankcase
b)
Cylinder
c)
Carburetor
d)
Sump
23.
The exhaust gases are primarily composed of ________ and ________
a)
Carbon dioxide + Oxygen
b)
H20 + Carbon monoxide
c)
Carbon dioxide + Methane
d)
Carbon dioxide + Carbon monoxide
24.
The term TDC stands for_______   ________  ___________
a)
Top Dead Crown
b)
Top Distant Center
c)
Top Dead Center
d)
Top Dead Cylinder
25.
The term BDC stands for_______   ________  ___________
a)
Bottom Dead Center
b)
Bottom Distant Center
c)
Both Dead Center
d)
Below Dead Center
26.
A charge is considered to be the _______/ ______ mixture being compressed during the compression stroke
a)
Fuel / Oil
b)
Fuel / Carbon
c)
Oxygen / Air
d)
Fuel / Air
27.
OHV stands for ______  ________   _______
a)
Over Head Volume
b)
Over Hidden Valves
c)
Over Head Valves
d)
None of the above
28.

In one cycle of an engine how many times does the crankshaft rotate?

a)

2

b)

1

c)

4

d)

none

29.

Why does the flywheel have to be so heavy?

a)

It helps provide inertia to keep the engine going

b)

engines are sold by the pound

c)

it helps slow the engine to a stop

d)

magnets are heavy and the flywheel has 1 or more

30.

How does the electrical system provide a spark without a battery?

a)

Induction theory: the spark is created when a magnet passes the ignition armiture

b)

Bernoulli's Principle, the spark is sucked up by fluid dynamics

c)

The Venturi effect creates a spark

d)

it does have a battery

31.

What would happen if all the piston rings were aligned?

a)

oil would get into the combustion chamber and blue smoke would appear in the exhaust

b)

the engine would die

c)

nothing

d)

the engine will run smoothly

32.

What allows gas to come into the throat of the carburetor from the fuel bowl?

a)

Bernoulli's Principle

b)

the Venturi effect

c)

Induction Theory

d)

Four-Stroke Theory

33.
Identify this part?
a)
Oil Slinger
b)
Cylinder Head
c)
Camshaft
d)
Crankshaft
34.
Name the following Fastening Tool.
a)
Socket Wrench
b)
Open End Wrench
c)
Adjustable Wrench
d)
Box End Wrench
35.
Name the following Specialty Tool.
a)
Flywheel Holder
b)
Flywheel Puller
c)
Ring Compressor
d)
Doughnut Mold
36.
Name the following Testing Tool.
a)
Sparkplug Ground
b)
Conduct Amplifier 
c)
Sparkplug Tester
d)
Conduct Ground
37.
This rubber mallet is part of what category of tools used to repair small engines?
a)
Striking/Driving
b)
Fastening
c)
Special
d)
Cutting
38.

What happens if you don't get your ignition armature air gap right?

a)

all of these

b)

The engine won't start

c)

The flywheel might get chipped

d)

The flywheel won't move

39.

What is the best oil for using in both summer and winter?

a)

10W30 SAE

b)

30W SAE

c)

5W SAE

d)

10W SAE

40.
OHV stands for Over Heated Valves.
a)
False
b)
True
41.
The tappets ride on the lobes on the camshaft
a)
False
b)
True
42.
The flywheel is used to counteract momentum    
a)
False
b)
True
43.
Oil will break down very quickly if overheated
a)
False
b)
True
44.
A carburetor is a device used to;  ___________________________
a)
Increase compression
b)
Controls the speed of an engine
c)
Creates spark
d)
Mix the proper fuel air ratio
45.
The exhaust valve is associated with the _________
a)
Flywheel
b)
Muffler
c)
Carburetor
d)
Sump
46.
The intake valve is associated with the _________
a)
Flywheel
b)
Muffler
c)
Carburetor
d)
Sump
47.

This system changes reciprocating motion into rotary motion.

a)

Lubrication

b)

Mechanical

c)

Ignition

d)

Starting

48.

Where the piston moves up and down.

a)

Cylinder

b)

Crankcase

c)

Combustion Chamber

d)

Head

49.

The piston is attached to the crankshaft by the:

a)

rings

b)

wrist pin

c)

camshaft

d)

connecting rod

50.

There are __________________ rings on a small engine piston.

a)

one

b)

two

c)

three

d)

four

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