LV02-2

If diesel fuel doesnt fully combust, it may produce:

• water vapour

• blue smoke

• particulates

• hydrogen

Exhaust gas recirculation valves are fitted to modern engines to?

• make a rich air fuel mixture

• increased combustion temperatures to reduce CO emissions

• cool the combustion temperature to reduce NOx

• measure the amount of oxygen in the exhaust gas

nitrogen, carbon dioxide and carbon monoxide are usually found in?

• petrol

• diesel fuel

• coolant mixture

• exhaust gas

The lambda sensor is normally located?

• in the exhaust tail pipe

• in number one manifold branch

• at the front of the exhaust

• in the exhaust silencer

The exhaust and intake have been carefully designed to reduce

• heat only

• emissions only

• noise only

• noise levels and emissions

The fuel injection system illustrated here shows:

• diesel injection system

• a NOx injection system

• single point fuel injection

• multi point fuel injection

Octane rating relates to?

• Diesel

• Petrol

• Brake fluid

• Water

What would the word "cetane" relate to?

• Petrol

• diesel

• brake fluid

• coolant

Diesel fuel is made out of?

• Hydrogen and sulphur

• Hydrogen and carbon

• Carbon and nitrogen

• Nitrogen and Oxygen

Single point fuel injection systems have?

• a carburettor for each cylinder

• a high pressure common rail

• one injector to feed all cylinders

• one injector per cylinder