The 4 stroke cycle explained

Most vehicles on the road are powered by a reciprocating piston internal combustion engine (ICE).

• True

• False

How many revolutions of the crankshaft are necessary to complete the 4 stroke cycle?

• 1

• 2

• 3

• 4

What does the acronym TDC stand for?

(a)  

What does the acronym BDC stand for?

(a)  

In which stroke does the combustion process push the piston down to create rotational mechanical energy?

• Intake

• Compression

• Power

• Exhaust

The fuel and air mixture gets squeezed into a smaller volume during which stroke?

• Intake

• Compression

• Power

• Exhaust

During which two strokes are the intake and exhaust valves CLOSED?

• Intake

• Compression

• Power

• Exhaust

During which two strokes are the intake or exhaust valves OPEN?

• Intake

• Compression

• Power

• Exhaust