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Understanding Engines

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12th Grade

Understanding Engines
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An engine is:

a device that converts energy into mechanical power

a type of vehicle

a kind of fuel

a tool for measuring speed

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An engine is the central source of power in our automobiles and diesel trucks. It sends power down the ________.

driveshaft

transmission

exhaust

radiator

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first stroke of a four-stroke engine where the air and fuel mixture enters the engine?

A) Compression

B) Intake

C) Power

D) Exhaust

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During which stroke of a four-stroke engine is the fuel and air mixture compressed?

A) Power

B) Exhaust

C) Compression

D) Intake

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a four-stroke engine, the mixture is ignited to propel the vehicle during the _______ stroke.

Power

Intake

Compression

Exhaust

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens during the exhaust stroke of a four-stroke engine?

A) Air and fuel mixture enters

B) The mixture is ignited

C) Spent gases are expelled

D) The mixture is compressed.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Forced Air in the context of air introduction in engines?

Air is forced into the combustion chamber to create more power, but with lower fuel efficiency.

Air is naturally aspirated using atmospheric pressure.

Air is cooled before entering the combustion chamber.

Air is mixed with fuel before entering the combustion chamber.

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