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4 Stroke Engine

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

What direction is the piston moving on the intake stroke?

a)

left

b)

up

c)

down

d)

right

2.

What direction is the piston moving on the exhaust stroke?

a)

left

b)

up

c)

down

d)

right

3.

What are the valves doing on the compression stroke?

a)

both open

b)

intake open

exhaust closed

c)

Intake closed

exhaust open

d)

both closed

4.

The four strokes of an internal combustion engine are

a)

in, out, combustion, exhaust

b)

intake, out take, compression, power

c)

intake, compression, combustion, exhaust

d)

in, out, power, compression

5.

The four stroke engine cycle begins with the _______ stroke.

a)

combustion

b)

intake

c)

compression

d)

exhaust

6.

On the exhaust stroke .........

a)

the intake and the exhaust valves are opened

b)

the intake valve is closed

c)

the intake and the exhaust valves are closed

d)

the exhaust valve opens; the intake valve is closed

7.

What is it?

a)

combustion stroke

b)

exhaust stroke

c)

intake stroke

d)

compression stroke

8.

There are three strokes in the operation of the 4-stroke gas engine

a)

True

b)

False

9.

What is it?

a)

combustion stroke

b)

comression stroke

c)

intake stroke

d)

exhaust stroke

10.

what is it?

a)

exhaust stroke

b)

combustion stroke

c)

comression stroke

d)

intake stroke

11.

During the first stroke (Intake), what valves are open-if any?

a)

Both closed

b)

Intake valve open, Exhaust closed.

c)

Both are open

d)

Intake valve closed, Exhaust valve open.

12.

During the combustion stroke the piston moves________

a)
up
b)
down slighty
c)
in both directions
d)
down
13.
During the exhaust stroke the piston moves________
a)
up
b)
in both directions
c)
the head bolts
d)
down
14.
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
15.

In combustion stroke both intake valve and exhaust valve are closed

a)
True
b)
False