Internal combustion engine basics 1

Which of these fuels are in use in cars and trucks and trains in New Zealand? Tick all the correct ones.

• Petrol

• Diesel

• Parrafin

• LPG and CNG gases

An internal combustion engine turns (a)   into energy

How many strokes are there in most common vehicle engines?

• Two

• Three

• Four

• Five

What are the four strokes called in a four stroke engine?

• Intake, compression, exhaust, cleaning

• Exhaust, diesel, complication, cleaning

• Intake, compression, combustion, exhaust

• Petrol, spark, explosion, exhaust

Which part of an engine turns as a result of the combustion of the fuel, and hence powers the other parts of the vehicle?

• Camshaft

• Crankshaft

• Piston

• Valve

Tags

NGSS.MS-PS3-5

There are usually two valves in a four stroke engine, an intake valve and an exhaust valve

• True

• False

During the intake stroke, the (a)   moves down, sucking fuel into the cylinder

Which part of the engine moves up and down in the cylinder and hence powers the crankshaft?

• The valves

• The camshaft

• The timing belt

• The pistons (and piston rods)

Which stroke provides the power that actually turns the crankshaft?

• Combustion

• Compression

• Exhaust

• Intake

The timing belt is necessary to make sure the valves open and close at the right points in the pistons' movements

• True

• False