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Worksheets

Engine Systems

Total questions: 25

Worksheet time: 17mins

Name
Class
Date
1.

Identify the component in the picture:

a)

Thermistor

b)

Pressure Cap

c)

Water Pump

d)

Thermostat

2.

An engine does not reach operating temperature while being driven. Which of these could be the cause?

a)

A slipping water pump belt

b)

A stuck open thermostat

c)

A stuck closed thermostat

d)

A clogged radiator passage

3.

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, isn't it?

4.

True or False: An engines cooling system is designed to transfer excess heat from the engine to the atmosphere.

a)

True

b)

False

5.
What is the order of the cycles of a 4 cycle engine?
a)
Exhaust, Compression, Power, Intake
b)
Intake, Compression, Power, Exhaust
c)
Intake, Exhaust, Compression,Power
d)
Intake, Power, Exhaust, Compression
6.

A crankshaft's job in an engine is to:

a)

open the valves

b)

change linear motion into rotational motion

c)

keep the cylinder head(s) in place

d)

connect the piston and the camshaft

7.

What is this part called

a)

Bearing Cap

b)

Thrust Bearing

c)

Half Bearing

d)

Shim Bearing

8.

What transfers motion from the camshaft to the push rod in an OHV engine?

a)

Rocker Arm

b)

Rocker Pivot

c)

Lifter

d)

Valve Spring

9.

What direction is the piston traveling during the Power stroke?

a)

Up

b)

It's not moving

c)

Right

d)

Down

10.

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

11.

The coolant in the radiator is cooled by ______________________ flowing through the radiator.

a)

Water

b)

Anti-freeze

c)

Ethylene Glycol

d)

Air

12.

The round metal component in the center of this object is called the ______________________.

a)

Impeller

b)

Thermostat

c)

Electrical cooling fan

d)

Viscous coupling

13.

The first thing to check during a visual inspection of the cooling system is the:

a)

Belt tension

b)

Radiator Condition

c)

Fan Condition

d)

Coolant level and condition

14.
Firing order refers to the sequence in which the engines pistons are on there _____________ stroke.
a)
Intake
b)
Compression
c)
Power
d)
Exhaust
15.
True or False: All Four Cylinder engines fire in the SAME order
a)
True
b)
False
16.

What is this engine called?

a)

James

b)

Edward

c)

Gordon

d)

Thomas

17.

In a "vee" type engine the camshaft turns at what speed compared to the crankshaft

a)

1/4 speed

b)

1/2 speed

c)

2/1 speed

d)

1/1 speed

18.
If you wanted to change the stroke of the engine, you would have to change what engine part?
a)
Valves
b)
Piston
c)
Connecting Rod
d)
Crankshaft
19.
Of the two valves inside the engine, which one is bigger?
a)
Intake
b)
Exhaust
c)
Same size
d)
Neither
20.

The burning of petrol (gasoline) in an engine is the conversion of

a)

Chemical energy to mechanical energy

b)

Chemical energy to kinetic (moving) energy

c)

Thermal energy to mechanical energy

d)

Chemical energy to thermal energy

21.

Which component connects the Piston to the Con-rod?

a)

Pidgeon Pin

b)

Gudgeon Ring

c)

Gudgeon Pin

d)

Piston-end Pin

22.

What does CI stand for?

a)

Controlled Ignition

b)

Compression Injection

c)

Controlled Injection

d)

Compression Ignition

23.
What is the term used for the period where both inlet and exhaust valves are open at the same time?
a)
Valve lead
b)
Valve lag
c)
Valve overlap
d)
Valve combined 
24.
What is the correct technical name for the 4 stroke cycle?
a)
Rudolph cycle
b)
Otto cycle
c)
Benedict cycle
d)
Auxiliary cycle
25.

Two stroke engines: what component does a CI engine have which a SI engine does not have

a)

Inlet valve

b)

Transfer port

c)

Exhaust Port

d)

Inlet Port

e)

Exhaust Valve