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Small Engine Review

Total questions: 60

Worksheet time: 1hrs 14mins

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 this part?
a)
Spark Plug
b)
Cylinder Head
c)
Armature
d)
Cylinder Head Bolt
6.
Identify this part?
a)
Crankshaft
b)
Oil slinger
c)
Camshaft
d)
Flywheel
7.
Identify this part?
a)
Oil Dipper
b)
Cylinder Head
c)
Cylinder Head Gasket
d)
Oil Slinger
8.
Identify this part?
a)
Crankshaft
b)
Cylinder Head
c)
Carburetor
d)
Heat Shield
9.

Which engine type requires oil to be mixed into gas

a)

Single cylinder

b)

Two stroke engines

c)

Four Stroke Engines

d)

Auto engines

10.

Using old gas can prevent your engine from starting. How new should gas be?

a)

Less than 1 month old

b)

Less than 6 month old

c)

Less than 1 year old

d)

Less than 6 years old

11.

What will happen to your engine if there is too little oil?

a)

The engine will seize

b)

The engine may over heat

c)

Causes wear on the internal parts of the engine

d)

All of the above

12.

Fires involving plastic gas cans stored on a plastic truck liners begin because?

a)

They can slide around

b)

Metal or plastic retain static electricity that can spark

c)

The plastic gas can are not safe

d)

It is easy for them to tip over

13.

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

a)

Intake

1.

Open

b)

Compression

2.

Closed

c)

Power/Ignition

3.

Closed

d)

Exhaust

4.

Closed

14.

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

a)

Intake

1.

Closed

b)

Compression

2.

Closed

c)

Power/Ignition

3.

Closed

d)

Exhaust

4.

Open

15.

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)
16.

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)
17.

The valves are opened by the lobes on the ________?

a)
Crankshaft
b)
Camshaft
c)
Tappets
d)
Timing Gear
18.

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

a)
True
b)
False
19.

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

a)

Phyiscal Energy

b)

Heat energy

c)

Compressed Air

d)

Kinetic energy

20.
During the exhaust stroke the piston moves________
a)
up
b)
in both directions
c)
the head bolts
d)
down
21.
The power stroke occurs ______percent of one complete cycle in a four stroke engine.
a)
14 %  
b)
15 %
c)
20 %
d)
25 %
22.
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
23.

The main function of a crankshaft is to convert linear motion into _________ motion.

a)

Linear

b)

Rotatory

c)

Vertical

d)

Stationary

24.

What is the name of the heavy disk mounted to one end of the crankshaft that supplies inertia to prevent loss of engine speed between combustion intervals?

a)

Piston

b)

Camshaft

c)

Crankshaft

d)

Flywheel

25.

What component can be considered the “Brain” of the engine?

a)

Piston

b)

Camshaft

c)

Crankshaft

d)

Flywheel

26.
Identify this part?
a)
Crankshaft
b)
Cylinder Head
c)
Cylinder Head Gasket
d)
Heat Shield
27.
Identify this part?
a)
Crankcase cover
b)
Cylinder Head
c)
Engine Block
d)
Cylinder Head Gasket
28.
Identify the part?
a)
Wrist Pin
b)
Poppet Valve
c)
Crankshaft
d)
Tappet
29.

The diameter of the cylinder is known as the engine ____.

a)

compression ratio

b)

bore

c)

power

d)

work

30.

___ refers to the volume of air and fuel the engines can draw into its cylinder(s) during an intake stroke.

a)

compression ratio

b)

bore

c)

power

d)

displacement

31.

______ is the relationship of the total volume of empty space above the piston when the piston is at BDC compared to the volume when the piston is at TDC.

a)

compression ratio

b)

bore

c)

power

d)

displacement

32.

Oil should be checked regularly and kept between the minimum and maximum levels.

a)

True

b)

False

33.

What is the function of oil in an engine?

a)

to clean

b)

to lubricate

c)

to cool

d)

all of these

34.

_____ oil acts like 10 weight oil in the winter and as a 30 weight oil in the summer.

a)

SAE 30

b)

30W10

c)

10W30

d)

none of these

35.

_____ can be used to help reduce the deterioration of fuel, allowing it to be stored for longer periods of time.

a)

stabilizers

b)

ethanol

c)

E85

d)

engine oil mixes

36.

How can engine compression be tested?

a)

Compression gauge

b)

Compression tester

c)

Bump test

d)

All of these

37.

The most popular engine configuration in diesel engines is...

a)

Inline

b)

V

c)

Radial

d)

Boxer

38.

A Supercharger is driven by the engines?

a)

Belt System

b)

Exhaust Gas

c)

Oil Pressure

d)

Wheel speed

39.

A turbo charger is driven by...

a)

Exhaust Gas

b)

Belts

c)

Fuel Pressure

d)

Oil Pressure

40.

The camshaft actuates (moves) the valve train using...

a)

Cam Lobes

b)

Cam Plungers

c)

Cam Fingers

d)

Eggs

41.

The flywheel in a diesel engine differs from a small engine mainly because it has...

a)

Teeth for the electric starter

b)

More bolts

c)

Heavier weight

d)

Thinner

42.

What is the difference between a dry and wet cylinder liner?

a)

Whether it contacts coolant or not

b)

How it is installed in the engine

c)

Its cooling effectiveness

d)

Size

43.

What is the main difference between spark and compression ignition?

a)

How the fuel is ignited (spark plug vs. no spark plug)

b)

Speed of operation

c)

Use

d)

Size

44.
Identify this part
a)
Flywheel Key
b)
Woodruff Key
c)
Cam Key
d)
Governor
45.
Identify the  small holes seen in the piston ring area
a)
Wrist Pin Window
b)
Piston Window
c)
Connecting Rod Window
d)
Camshaft
46.
This Specialty Tool is  called....
a)
Potato Skinner
b)
Starter Clutch Wrench
c)
Fly Wheel Holder
d)
PTO Shaft Attachment
47.
Name the following measuring tool.
a)
Ring Compressor
b)
C Clamp
c)
Tachometer
d)
Micro Meter
48.
Name the following Fastening tool.
a)
Ratchet and Socket Wrench
b)
Cranket Wrench
c)
Dual Position Wrench
d)
Slow Wrench
49.
This Telescoping Tool is part of what category of tools used to repair small engines?
a)
Measuring
b)
Fastening
c)
Specialty
d)
Testing
50.
Name the following Testing Tool.
a)
Sparkplug Ground
b)
Conduct Amplifier 
c)
Sparkplug Tester
d)
Conduct Ground
51.
Name the following Specialty Tool.
a)
Flywheel Holder
b)
Flywheel Puller
c)
Ring Compressor
d)
Doughnut Mold
52.
Name the following Specialty Tool.
a)
Micro Meter
b)
Dial Caliper
c)
Telescope Gauge
d)
Tachometer
53.

Green fluid is noticed on the ground beneath a vehicle’s engine. This condition could be caused by a leak at the?

a)

Oil Filter Housing

b)

Water Pump

c)

Transmission Cooler Line

d)

Valve Cover Gasket

54.

Which engine valve configuration has the camshaft in the cylinder block.

a)

Over Head Valve (OHV)

b)

Over Head Cam (OHC)

c)

Dual Over Head Cam (DOHC)

d)

This is a trick question Mr. Gregoire

55.

What is the freeze point for coolant mixed with a 50/50 Antifreeze to water ratio ?

a)

32*F

b)

0*F

c)

-35*F

d)

-100*F

56.

Technician A says that most aluminum heads should be removed while the engine is still warm. Technician B says that some manufacturers require head bolts to be removed in reverse order of the tightening sequence. Who is correct?

a)

Tech A Only

b)

Tech B Only

c)

Both A and B

d)

Neither A nor B

57.

Technician A says that the engine should be cleaned before checking for oil leaks. Technician B says that a florescent dye should be added to the engine oil when checking leaks with a black light. Who is correct?

a)

Tech A

b)

Tech B

c)

Both A and B

d)

Neither A nor B

58.
OHV stands for ______  ________   _______
a)
Over Head Volume
b)
Over Hidden Valves
c)
Over Head Valves
d)
None of the above
59.
An operating cycle requires two revolutions ____of the crankshaft which equals how may degrees of rotation
a)
120°
b)
720°
c)
180°
d)
360°
60.
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

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