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AUT/SEPT/2025L5

Total questions: 45

Worksheet time: 33mins

Name
Class
Date
1.

Engines originally were described as ________ Combustion Engines.

a)

External

b)

Internal

c)

Operational

d)

Rotary

2.

Internal Combustion Engines were invented in...

a)

1860

b)

1876

c)

1996

d)

1890

3.

Which was invented first the four stroke engine or the two stroke engine and who was its inventor.

a)

4 stroke by Nikolaus Otto

b)

4 stroke by Karl Benz

c)

2 stroke by Nikolaus Otto

d)

2 stroke by Karl Benz

4.

An Engine Cycle can best be described as...

a)

A complete round of work in an engine

b)

Completion of at least 2 strokes

c)

Intake, Compression, Power, Exhaust

d)

When gasoline / diesel turns into NOx

5.

In a four stroke engine one stroke is when the piston does what?

a)

Moves from either (TDC to BDC) or (BDC to TDC)

b)

Intake Valve opens

c)

Pushes downward on the crank

d)

seals the cylinder

6.

What are the four strokes in order?

a)

Intake, Compression, Power, Exhaust

b)

Suck, Squeeze, Blow, Bang

c)

Compression, Intake, Exhaust, Power

d)

Blow, Squeeze, Bang, Suck

7.

The intake Stroke is when...

a)

The piston moves from TDC to BDC

b)

The Intak Valve opens

c)

A vacuum is created to bring in air / fuel

d)

All of the above

8.

Compression accomplishes two things... What is one of them.

a)

Heat up air in the cylinder

b)

Breakdown fuel into smaller particles

c)

Allow for smaller combustion force

d)

Drawing oil into the sump

9.

A compression ratio is the difference in __________ at TDC and BDC

a)

Volume

b)

Area

c)

Square Feet

d)

Cubic Yard

10.

During the Power Stroke both the intake and exhaust valve are

a)

Open

b)

Closed

c)

Floating

d)

Sticking

11.

During the Exhaust Stroke...

a)

The piston pushes out the spent air/fuel charge

b)

The exhaust valve opens

c)

An Engine cycle is completed

d)

All of the above.

12.

The term used to describe the removal of spent charge and replace it with few air-fuel mix is called?

a)

Scavenging

b)

Scavengers

c)

Badgers

d)

Valve Overlap

13.

The piston travels up and down in the...

a)

Cylinder

b)

Crankcase

c)

Valve Seat

d)

Connecting Rod

14.

The piston is attached to the crankshaft using the...

a)

Connecting Rod and Cap

b)

Crankpin

c)

Valve return spring

d)

Camshaft

15.

Power in an engine is transferred from the piston to the backbone of the engine otherwise known as the...

a)

Crankshaft

b)

Camshaft

c)

Valve Stem

d)

Piston Ring

16.

Engines originally were described as ________ Combustion Engines.

a)

External

b)

Internal

c)

Operational

d)

Rotary

17.

Internal Combustion Engines were invented in...

a)

1860

b)

1876

c)

1996

d)

1890

18.

Which was invented first the four stroke engine or the two stroke engine and who was its inventor.

a)

4 stroke by Nikolaus Otto

b)

4 stroke by Karl Benz

c)

2 stroke by Nikolaus Otto

d)

2 stroke by Karl Benz

19.

An Engine Cycle can best be described as...

a)

A complete round of work in an engine

b)

Completion of at least 2 strokes

c)

Intake, Compression, Power, Exhaust

d)

When gasoline / diesel turns into NOx

20.

In a four stroke engine one stroke is when the piston does what?

a)

Moves from either (TDC to BDC) or (BDC to TDC)

b)

Intake Valve opens

c)

Pushes downward on the crank

d)

seals the cylinder

21.

What are the four strokes in order?

a)

Intake, Compression, Power, Exhaust

b)

Suck, Squeeze, Blow, Bang

c)

Compression, Intake, Exhaust, Power

d)

Blow, Squeeze, Bang, Suck

22.

The intake Stroke is when...

a)

The piston moves from TDC to BDC

b)

The Intak Valve opens

c)

A vacuum is created to bring in air / fuel

d)

All of the above

23.

Compression accomplishes two things... What is one of them.

a)

Heat up air in the cylinder

b)

Breakdown fuel into smaller particles

c)

Allow for smaller combustion force

d)

Drawing oil into the sump

24.

A compression ratio is the difference in __________ at TDC and BDC

a)

Volume

b)

Area

c)

Square Feet

d)

Cubic Yard

25.

During the Power Stroke both the intake and exhaust valve are

a)

Open

b)

Closed

c)

Floating

d)

Sticking

26.

During the Exhaust Stroke...

a)

The piston pushes out the spent air/fuel charge

b)

The exhaust valve opens

c)

An Engine cycle is completed

d)

All of the above.

27.

The term used to describe the removal of spent charge and replace it with few air-fuel mix is called?

a)

Scavenging

b)

Scavengers

c)

Badgers

d)

Valve Overlap

28.

The piston travels up and down in the...

a)

Cylinder

b)

Crankcase

c)

Valve Seat

d)

Connecting Rod

29.

The piston is attached to the crankshaft using the...

a)

Connecting Rod and Cap

b)

Crankpin

c)

Valve return spring

d)

Camshaft

30.

Power in an engine is transferred from the piston to the backbone of the engine otherwise known as the...

a)

Crankshaft

b)

Camshaft

c)

Valve Stem

d)

Piston Ring

31.

Engines originally were described as ________ Combustion Engines.

a)

External

b)

Internal

c)

Operational

d)

Rotary

32.

Internal Combustion Engines were invented in...

a)

1860

b)

1876

c)

1996

d)

1890

33.

Which was invented first the four stroke engine or the two stroke engine and who was its inventor.

a)

4 stroke by Nikolaus Otto

b)

4 stroke by Karl Benz

c)

2 stroke by Nikolaus Otto

d)

2 stroke by Karl Benz

34.

An Engine Cycle can best be described as...

a)

A complete round of work in an engine

b)

Completion of at least 2 strokes

c)

Intake, Compression, Power, Exhaust

d)

When gasoline / diesel turns into NOx

35.

In a four stroke engine one stroke is when the piston does what?

a)

Moves from either (TDC to BDC) or (BDC to TDC)

b)

Intake Valve opens

c)

Pushes downward on the crank

d)

seals the cylinder

36.

What are the four strokes in order?

a)

Intake, Compression, Power, Exhaust

b)

Suck, Squeeze, Blow, Bang

c)

Compression, Intake, Exhaust, Power

d)

Blow, Squeeze, Bang, Suck

37.

The intake Stroke is when...

a)

The piston moves from TDC to BDC

b)

The Intak Valve opens

c)

A vacuum is created to bring in air / fuel

d)

All of the above

38.

Compression accomplishes two things... What is one of them.

a)

Heat up air in the cylinder

b)

Breakdown fuel into smaller particles

c)

Allow for smaller combustion force

d)

Drawing oil into the sump

39.

A compression ratio is the difference in __________ at TDC and BDC

a)

Volume

b)

Area

c)

Square Feet

d)

Cubic Yard

40.

During the Power Stroke both the intake and exhaust valve are

a)

Open

b)

Closed

c)

Floating

d)

Sticking

41.

During the Exhaust Stroke...

a)

The piston pushes out the spent air/fuel charge

b)

The exhaust valve opens

c)

An Engine cycle is completed

d)

All of the above.

42.

The term used to describe the removal of spent charge and replace it with few air-fuel mix is called?

a)

Scavenging

b)

Scavengers

c)

Badgers

d)

Valve Overlap

43.

The piston travels up and down in the...

a)

Cylinder

b)

Crankcase

c)

Valve Seat

d)

Connecting Rod

44.

The piston is attached to the crankshaft using the...

a)

Connecting Rod and Cap

b)

Crankpin

c)

Valve return spring

d)

Camshaft

45.

Power in an engine is transferred from the piston to the backbone of the engine otherwise known as the...

a)

Crankshaft

b)

Camshaft

c)

Valve Stem

d)

Piston Ring

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