LV07 Test 4

Front

A compression ignition engine produces a lot of black smoke from the exhaust when accelerating. The most likely cause of this fault is: blocked injector, maladjusted throttle linkage, restricted air filter, restricted fuel filter

Back

restricted air filter

Front

Which piece of equipment is used to check the dynamic ignition timing on a spark ignition system?

Back

a stroboscope light

Front

The fuel pressure in a common rail fuel system can be checked by connecting a pressure gauge to:

Back

the fuel rail and running the engine

Front

The starter is rotating but the engine stays stationary, one possible fault could be:

Back

worn flywheel ring gear

Front

The communication network system shown in the diagram is called a:

Back

multiplex system

Front

A turbo-charged engine starts and idles but stalls when the revs are increased. One possible cause could be: a defective enrichment device, a defective coolant temperature sensor, a blocked air intake, the fins of the inter cooler blocked

Back

a blocked air intake

Front

What is the main design feature of the hemispherical combustion chamber?

Back

Valves are inclined at about 90 degrees to each other

Front

What is the common environmental hazard as a consequence of the combustion of petrol and diesel fuels containing sulphur combined with water vapour?

Back

Acid rain

Front

Blow-by gases in the crankcase are removed by the:

Back

PCV system

Front

The definition of a vehicle's fuel's flash point is the:

Back

temperature at which the fuel will vaporize to form an ignitable mixture