Unit 172 Set D

Which one of the following components is shown in the image above?

• Carburettor

• Supercharger

• Intake manifold

• Exhaust manifold

Which one of the following pieces of equipment should be used to inspect the condition and functioning of a fuel pump?

• Fuel Pressure gauge

• Torque gauge

• Inspection lamp

• Inlet Manifold vacuum gauge

With a petrol multi point fuel injection system the fuel is normally injected into the

• Exhaust manifold

• Intake manifold

• Pre-combustion chamber

• Cylinder bore

When removing and replacing an inlet manifold, which one of the following is good practice?

• Replacing the air filter

• Replacing the inlet manifold gasket

• Replacing the Injectors

• Replacing the Spark plugs

Which one of the following is the main reason multi point fuel injection MPI system are preferred over single point injection SPI system

• They lower the fuel systems engine power

• They reduce the engine power

• They constant the engine power

• They increase the engine power

Which one of the following methods should be used initially to test a turbocharger mechanical waste gate actuator

• Using a vacuum tester and gauge

• Road testing to full boost

• Measuring the operating speed

• Place 12v through the actuator and measure the resistance

What do the initial EGR stand for?

• Emission Group Recirculation

• Exhaust Global ready

• Exhaust Gas Recirculation

• Engine Gas Reduction

Recirculating exhaust gases back into the combustion chamber reduces the temperature of the combustion process and reduce?

• Carbon monoxide (CO)

• Oxides of Nitrogen (NOx)

• Carbon Dioxide (CO2)

• Hydrocarbons (HC)

A vehicle is misfiring and the technician has the data logged from the lambda sensor, which shows that there is high O2 reading, this reading shows the engine is:

• Running lean/weak

• Running incorrectly due to valve overlap

• Running OK, faulty sensor

• Running rich

A faulty fuel stop solenoid stuck in the open position on a diesel engine would cause the engine not to

• Idle

• Advance

• Turn off

• Rev up