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WorksheetsUnit 152 (1) Eng Mech / Lub / Cooling
Total questions: 10
Worksheet time: 5mins
On a compression ignition engine at what point will fuel be injected into the cylinder?
End of compression stroke.
End of induction stroke.
End of power stroke.
End of exhaust stroke.
In the compression ignition engine four stroke cycle, which stroke is not an idle stroke?
Exhaust stroke.
Power stroke.
Induction stroke.
Compression stroke.
Which component causes the inlet and exhaust valves to open?
The valve spring.
The cam follower.
The camshaft.
The push rod.
Which component in the engine lubrication system incorporates a bypass valve?
The engine oil pump.
The oil pump strainer.
The oil scavenge pump
The engine oil filter.
At what position in the lubrication system is an oil pressure relief valve fitted?
Before the oil pump.
After the oil pump.
Before the oil strainer.
After the oil filter.
Which component controls the operating pressure in a sealed cooling system?
The vacuum valve.
The expansion tank filler cap.
The water pump.
The thermostat.
Which component in a vehicle cooling system can be driven from the camshaft drive belt?
A variable pitch cooling fan.
A viscous cooling fan.
The water pump.
The transfer pump.
If the heater is only blowing cold air, which cooling system component could be at fault?
Thermostat.
Water pump.
Radiator.
Cooling fan.
If the heater motor will not operate, what component should be checked first?
Thermostat.
Heater switch.
In-line fuse.
Ignition switch.
If the pressure cap is found to be faulty and not holding its stated pressure, what effect would this have on the coolant boiling point?
The coolant would boil at 100 degrees C.
The coolant would boil at less than 100 degrees C.
The coolant would boil above 100 degrees C.
The coolant would operate at normal running temperature.
