What is the stoichiometric air fuel ratio?

• 1.47:1

• 14:71

• 147:1

• 14.7:1

What is petrol mixed with in the engine?

• Nitrous oxide.

• Nitrogen

• Air

• Hydrogen

What is the purpose of the fuel system?

• To start the engine from cold.

• To push the piston down to turn the crankshaft.

• To make the engine turn at the correct speed.

• To supply a correct amount of fuel to the engine at the correct time.

How many litres in a gallon?

• 3.14

• 4

• 10

• 4.55

Where does the fuel injector inject the fuel?

• The inlet port

• The exhaust manifold.

• The engine sump

• The induction pipe.

What should you do before working on the fuel system?

• Check the fuel temperature.

• Wait for the fuel to cool

• Release the fuel pressure.

• Drain the fuel tank.

Before working on the fuel system, it is a good idea to....?

• Disconnect the battery lead.

• Put the ignition on.

• Start the engine

• Drain the fuel tank.

What should fuel be stored in?

• A metal cupboard.

• A plastic bucket only.

• A metal bucket only.

• A sealed container.

How should you clean up spilled fuel?

• With a mop and bucket.

• Put sawdust on it and let it soak up.

• Use paper towels to soak it up.

• Use sand or absorbent granules.

Which fire extinguisher cannot be used for a fuel fire?

• CO2

• Foam

• Water

• Powder