Engine Cycles 101

What is engine operation?

• The process of starting and running an engine

• The design of engine components

• The fuel type used in engines

• The maintenance schedule for engines

Explain the four-stroke cycle.

• The four-stroke cycle consists of intake, compression, power, and exhaust strokes.

• The four-stroke cycle consists of intake, power, compression, and exhaust strokes.

• The four-stroke cycle consists of power, intake, compression, and exhaust strokes.

• The four-stroke cycle consists of compression, intake, power, and exhaust strokes.

The two-stroke cycle is described as:

• A cycle with two distinct strokes: compression and power.

• A cycle with four distinct strokes: intake, compression, power, and exhaust.

• A cycle with three distinct strokes: intake, compression, and power.

• A cycle with only one stroke: power.

What type of motion is converted to rotary movement in engine operation?

Where does petrol burn in the engine?

• Combustion chamber

• Fuel tank

• Exhaust pipe

• Radiator

What forces the piston and connecting rod down in an engine?

• Combustion of fuel-air mixture

• Gravity

• Magnetic force

• Electric spark

What component converts motion to rotary motion in an engine?

• Crankshaft

• Piston

• Camshaft

• Flywheel

Which of the following correctly describes the conversion process that occurs in an engine?

• Reciprocating movement is converted to rotary movement

• Rotary movement is converted to reciprocating movement

• Rotary motion is converted to oscillatory motion

• Petrol is converted to water

What is the position called when the piston is at the top of its travel?

• A) Bottom Dead Centre

• B) Top Dead Centre

• C) Mid Stroke

Fill in the blank: The downward movement of the piston rotates the ________.

• crankshaft.

• camshaft.

• flywheel.

• gearbox.