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WorksheetsSmall Engine Parts Identification & Functions
Total questions: 100
Worksheet time: 50mins
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)
Wrist Pin
b)
Poppet Valve
c)
Crankshaft
d)
Tappet
5.
Identify the part?
a)
Piston
b)
Connecting Rod
c)
Tappet
d)
Piston Rings
6.
Identify the part?
a)
Piston
b)
Block
c)
Cylinder Head
d)
Piston Rings
7.
Identify the part?
a)
Armature
b)
Spark Plug
c)
Starter Pulley
d)
Piston Rings
8.
Identify this part?
a)
Crankcase cover
b)
Cylinder Head
c)
Engine Block
d)
Cylinder Head Gasket
9.
Identify this part?
a)
Spark Plug
b)
Cylinder Head
c)
Armature
d)
Cylinder Head Bolt
10.
Identify this part?
a)
Crankshaft
b)
Oil slinger
c)
Camshaft
d)
Flywheel
11.
Identify the red outlined image?
a)
Match Marks
b)
Cylinder Head
c)
Cylinder Head
d)
Piston
12.
Identify this part?
a)
Oil Slinger
b)
Cylinder Head
c)
Camshaft
d)
Crankshaft
13.
Identify this part?
a)
Crankshaft
b)
Cylinder Head
c)
Cylinder Head Gasket
d)
Heat Shield
14.
Identify this part?
a)
Oil Dipper
b)
Cylinder Head
c)
Cylinder Head Gasket
d)
Oil Slinger
15.
Identify this part?
a)
Crankshaft
b)
Cylinder Head
c)
Carburetor
d)
Heat Shield
16.
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
17.
During the intake stroke the piston moves________
a)
up
b)
in both directions
c)
the head bolts
d)
down
18.
During the compression stroke the piston moves________
a)
up
b)
in both directions
c)
the hot gasses out of the cylinder
d)
down
19.
During the power stroke the piston moves________
a)
up
b)
down slighty
c)
in both directions
d)
down
20.
During the exhaust stroke the piston moves________
a)
up
b)
in both directions
c)
the head bolts
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.
The power stroke occurs ______percent of one complete cycle in a four stroke engine.
a)
14 %
b)
15 %
c)
20 %
d)
25 %
23.
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
24.
Tappets ride on ______ and push up on _________ __________
a)
camshaft lobes + connecting rod
b)
camshaft lobes and connecting rod
c)
camshaft lobes + poppet valves
d)
none of the above
25.
Select the best answer for the proper sequence for the four strokes in an internal combustion engine.
a)
compression, exhaust , power, intake
b)
compression, power, intake, exhaust
c)
exhaust, power, intake , compression
d)
exhaust, intake, compression, power
26.
Identify this part
a)
Cylinder Head
b)
Connecting Rod
c)
Cylinder Head Bolts
d)
Connecting Rod Cap
27.
Identify this part
a)
Valve Guide Retainers
b)
Valve Spring Release
c)
Valve Spring Retainers
d)
Piston Rings
28.
Identify this part
a)
Flywheel Key
b)
Woodruff Key
c)
Cam Key
d)
Governor
29.
Identify these parts
a)
Valve Springs
b)
Valve Sprockets
c)
Piston Rings
d)
Armature
30.
Identify this part
a)
Shroud
b)
Flywheel
c)
Starter Pulley
d)
Grass Screen
31.
Identify this part
a)
Oil Foam Filter
b)
Pleated Paper Filter
c)
Piston
d)
Cylinder
32.
Identify this part
a)
Shroud
b)
Flywheel
c)
Starter Pulley
d)
Grass Screen
33.
Identify this part
a)
Crankshaft Gear
b)
Oil Slinger
c)
Starter Pulley
d)
Governor
34.
Identify this part
a)
Recoil Starter Pulley
b)
Recoil Gear Pulley
c)
Restart Pulley
d)
Flywheel
35.
Identify this part
a)
Pleated Paper Filter
b)
Foam Paper
c)
Oil Foam Filter
d)
Sump
36.
Identify this part
a)
Scraper Ring
b)
Oil Ring
c)
Piston Pin
d)
Snap Ring
37.
a)
Fuel Hose Switch
b)
Off Switch
c)
On Switch
d)
Fuel Shutoff Switch
38.
a)
Exhaust Guide
b)
Breather Tube
c)
Muffler
39.
a)
Governor Spring
b)
Governor Idle Spring
c)
Governor Timing Link
d)
Governor Link
40.
a)
Armature
b)
Electric Coil
c)
Spark Plug
41.
a)
Governor Control Bracket
b)
Governor Control Lever
c)
Speed Control Bracket
d)
Speed Control Lever
42.
a)
Rocker Cover
b)
Cylinder Cover
c)
Flywheel Cover
d)
Crankcase Cover
43.
a)
Cooling Fan
b)
Cooling Fins
c)
Flywheel Fan
d)
Flywheel Fin
44.
a)
Rocker Arm
b)
Push Rod
c)
Tappet
d)
Oil Slinger
45.
a)
Rocker Arm
b)
Push Rod
c)
Tappet
d)
Oil Slinger
46.
a)
Intake Valve
b)
Exhaust Valve
c)
Tappet
d)
Push Rod
47.
a)
Intake Valve
b)
Exhaust Valve
c)
Tappet
d)
Push Rod
48.
a)
Rocker Cover
b)
Crankcase Cover
c)
Air Filter Cover
d)
Cylinder Head Cover
49.
a)
Engine Block
b)
Cylinder
c)
Piston
d)
Valve Guide
50.
a)
Engine Block
b)
Cylinder
c)
Piston
d)
Valve Guide
51.
Reducing wear between moving parts is a function of the ____________________________.
a)
fuel system
b)
starting system
c)
cooling system
d)
lubrication system
52.
The typical cooling system on a small engine uses _____________ to transfer heat.
a)
fins
b)
channels
c)
fans
d)
vacuum
53.
The ________________________ filters dust and dirt particles out of the fuel system.
a)
governor
b)
carburetor
c)
air cleaner
d)
fan
54.
A _________________________ fuel system locates the fuel tank above the carburetor.
a)
gravity feed
b)
vacuum feed
c)
pressure feed
d)
manual feed
55.
The fuel air mixture entering the combustion chamber is controlled by the _________________________.
a)
air cleaner
b)
fuel supply
c)
carburetor
d)
governor
56.
The maximum speed that an engine operates at is controlled by the _______________________________.
a)
air cleaner
b)
fuel supply
c)
carburetor
d)
governor
57.
The main part of the ignition system is the _______________________.
a)
electrode
b)
spark plug
c)
recoil
d)
starter
58.
The flywheel works in combination with the _______________________ to provide charge to the spark plug.
a)
coil
b)
capacitor
c)
crankshaft
d)
magneto
59.
What is the function of the depicted engine component?
a)
Provides inertia to keep the crankshaft spinning during the four-stroke cycle
b)
Allows liquid fuel to enter the combustion chamber
c)
Sends an electrical arc to the spark plug to ignite the air-fuel mixture in the combustion chamber
d)
Opens and closes the valves
60.
What is the function of the engine component?
a)
Provides a seal between the piston and cylinder bore
b)
Creates an electrical arc to start the combustion process
c)
Opens and closes the valves as a result of force from the push rods
61.
What is the function of this component of the ignition system?
a)
Transfers motion from the camshaft to the push rods
b)
Makes contact with the magneto to produce an electrical arc
c)
Provides inertia to keep the crankshaft turning during the four-stroke cycle
62.
What is the function of the exhaust valve?
a)
Opens to allow air-fuel mixture to enter the combustion chamber
b)
Opens to allow exhaust gases to exit the combustion chamber
c)
Regulates the flow of air-fuel mixture to the combustion chamber
63.
What is the function of this engine component?
a)
A sheet metal or composite component that encompasses a fan to direct cooling air to a cylinder block and cylinder head
b)
An engine component that attaches to the flywheel that helps reduce engine temperatures when air circulates across hot engine surfaces
c)
Provides inertia to keep the crankshaft turning during the four-stroke cycle
64.
What is the function of this small engine component?
a)
Opens to allow the air-fuel mixture to enter the combustion chamber
b)
Attaches the crankshaft and the piston together
c)
Rotates in conjunction with the crankshaft to open and close valves
65.
What is the function of the intake valve?
a)
Regulates the air-fuel mixture that enters the combustion chamber
b)
Opens to allow air-fuel mixture to enter the combustion chamber
c)
Opens to allow exhaust gases to exit the combustion chamber
66.
What is the function of this engine component?
a)
Houses and aligns the crankshaft
b)
Houses the primary components of the combustion chamber such as the spark plug, valves, valves springs, etc.
c)
Provides the spark necessary to ignite the air-fuel mixture in the combustion chamber
67.
What is the function of this engine component?
a)
Fastens the valve and valve spring into the cylinder head
b)
Attaches to the tip of the valve stem
c)
Provides a resisting force to close valves after they have opened
68.
An operating cycle requires two revolutions ____of the crankshaft which equals how may degrees of rotation
a)
120°
b)
720°
c)
180°
d)
360°
69.
The term BDC stands for_______ ________ ___________
a)
Bottom Dead Center
b)
Bottom Distant Center
c)
Both Dead Center
d)
Below Dead Center
70.
OHV stands for ______ ________ _______
a)
Over Head Volume
b)
Over Hidden Valves
c)
Over Head Valves
d)
None of the above
71.
Combustion of the fuel air mixture occurs in the ____________
a)
Crankcase
b)
Cylinder
c)
Carburetor
d)
Sump
72.
The term TDC stands for_______ ________ ___________
a)
Top Dead Crown
b)
Top Distant Center
c)
Top Dead Center
d)
Top Dead Cylinder
73.
During an intake stroke the _______ moves down and creates a___________
a)
Piston + Positive Pressure
b)
Piston + Vacuum
c)
Flywheel + Spark
d)
Piston + Explosion
74.
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
75.
During a power stroke the piston moves down with_____ ___________
a)
A Vaccum
b)
Great Force
c)
Large Spark
d)
Valves Opened
76.
During the exhaust stroke the piston moves______
a)
Up
b)
Down
c)
Sideways
d)
The Intake vavle
77.
The intake valve is associated with the _________
a)
Flywheel
b)
Muffler
c)
Carburetor
d)
Sump
78.
The exhaust valve is associated with the _________
a)
Flywheel
b)
Muffler
c)
Carburetor
d)
Sump
79.
Spark occurs between the _____ stroke + the ______ stroke
a)
Compression + Power
b)
Compression + Exhaust
c)
Power + Exhaust
d)
Intake + Compression
80.
Spark is generated with a _______ embedded in the ___________
a)
Magnet + Carburetor
b)
Coil of wire + Flywheel
c)
Magnet + Shroud
d)
Magnet + Flywheel
81.
A sump is a reservoir for _______
a)
Water
b)
Gasoline
c)
Oil
d)
Spark
82.
What two components mix to ignite to power an engine?
a)
nitrogen and fuel
b)
oxygen and fuel
c)
nitrogen and air
d)
oxygen and air
83.
What allows for the free flow of electricity?
a)
conductor
b)
resistor
c)
insulator
84.
What stops the free flow of electricity?
a)
insulator
b)
resistor
c)
conductor
85.
The length the piston moves from top to bottom or bottom to top is called
a)
Stroke
b)
Bore
c)
Movement
d)
Lenght
86.
What keeps the oil below the piston, and compression above the piston?
a)
Bearing
b)
Rings
c)
Necklaces
d)
Braclets
87.
What is valve timing?
a)
opening the valve at the right time
b)
closing the valve at the right time
c)
opening and closing of the valve at the right time
d)
not important
88.
Revolutions per minute (RPM) is the measurement of
a)
Piston Speed
b)
Camshaft direction
c)
What stroke is happening
d)
How fast the crankshaft is turning
89.
Of the two valves inside the engine, which one is bigger?
a)
Intake
b)
Exhaust
c)
Same size
d)
Neither
90.
Identify this small engine part.
a)
Electric Starter
b)
Shroud
c)
Crankcase Cover
d)
Sump
91.
Identify this small engine part.
a)
Crankshaft
b)
Tappet
c)
Cam Lobes
d)
Poppet valves
92.
Identify this small engine part.
a)
Pleated Paper Air Filter
b)
Grass Cover
c)
Oil Foam Air Filter
d)
Crankcase Cover
93.
Identify this small engine part.
a)
Torque Specifications
b)
Oil Requirements
c)
Serial Number
d)
Crankcase Cover
94.
Identify this small engine part.
a)
Crankcase
b)
Cylinder Head
c)
Oil Sump Case
d)
Crankcase Cover
95.
Identify this small engine part.
a)
Cylinder Head
b)
Crankcase Breather
c)
Oil Sump Case
d)
Armature
96.
Identify this small engine part.
a)
Air Vane Governor
b)
Crankcase
c)
Carburetor
d)
Armature
97.
Identify this small engine part.
a)
Fuel Tank
b)
Crankcase Breather
c)
Carburetor
d)
Starter Clutch
98.
Identify this small engine part.
a)
Connecting Rod
b)
Shroud
c)
Carburetor Linkage
d)
Crankcase
99.
Identify this small engine part.
a)
Carburetor
b)
Piston And Connecting Rod
c)
Cylinder Head Bolt
d)
Filler Cap with Dip Stick
100.
What is the function of the engine component?
a)
Provides inertia to keep the engine in operation during the four-stroke cycle
b)
Converts rotary motion into linear motion
c)
Converts linear motion into rotary motion
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