ENGINES ..22..

A distributor-less ignition system for a for cylinder engine uses:

• Four coils

• Contact breaker points

• One coil

• A wasted spark type of ignition

A supercharger is driven by:

• Exhaust gasses

• A toothed belt from the camshaft

• A toothed belt from the crankshaft

• An air pump

The term cetane rating is used to classify:

• Diesel fuel

• Coolant

• Petrol

• Brake fluid

Before checking the exhaust smoke of a compression ignition engine you should:

• Ensure the engine oil and filter have been changed

• Ensure the engine is operating in normal ambient temperatures

• Check and adjust the tension of the alternator drive belt

• Run the engine until it reaches normal operating temperature.

Nitrogen, carbon dioxide and carbon monoxide are usually found in:

• Petrol

• Diesel fuel

• Exhaust gasses

• Coolant

Un-burnt fuel may cause the exhaust of a Diesel engine to emit:

• Lots of nitrogen

• Blue smoke

• Water vapour

• Particulate matter

When tested, the exhaust gas of an engine contains an excessive amount of carbon monoxide, one likely cause of this is:

• A leaking inlet manifold

• A defective fuel pump.

• A leaking exhaust manifold

• A defective spark plug

The inter cooler fitted to a turbo charged engine will:

• Increase the air density by increasing the air temperature

• Increase the air density by decreasing the air temperature

• Decrease the air density by decreasing the air temperature

• Decrease the air density by increasing the air temperature

After changing the fuel filter the fuel filter is bled to ensure:

• Fuel pressure is maintained

• There is air in the system

• There is no air in the system

• There is additional fuel in the system

The ignition system “dwell angle” is the period during which:

• A magnetic field builds up in the ignition coil

• The piston reaches TDC

• The spark occurs at the spark plugs

• No current flows through the coil primary windings