Worksheets2.1k Engines
Total questions: 15
Worksheet time: 8mins
Maximum cylinder pressure should occur in an engine:
Just before TDC
At TDC or just after TDC
At BDC
At the end of the power stroke
A Wankel engine has the following components:
Epitrochoid shaped housing and a 3 sided rotor
Epitrochoid shaped housing and a piston
Normal pistons and cylinders
Epitrochoid shaped housing and inlet and exhaust valves
Semi-Synthetic oil is a consists of:
Is a lubricant that is man made
Is a pure mineral base oil
Is a mixture of man made and organic oils
None of the above
The small, usually clear, tank connected to the radiator in the cooling system will:
Allow water to flow into it but not out of when the coolant expands
Allow water to flow into it but not out of when the coolant contracts
Allow water to flow into and out of when the coolant expands or contracts
A convenient place for the radiator cap to fit
An engine with 1 camshaft controlling the inlet valves and 1 camshaft controlling the exhaust valves is known as:
2 camshaft engine
DOCH
DOHC
Dual camshaft engine
An engine has low oil pressure – this could be caused by:
A camshaft engine with leaking exhaust valves
Leaking oil control rings
Worn main bearings
A seized closed PRV
An engine has a leaking oil pump and this may cause:
Engine oil loss
Leaking oil control rings
Blue smoke
Low engine oil pressure
Crankshaft end float on a fully assembled engine is best measured with a:
DMM
DTI
Feeler gauge
Crankshaft end float measuring tool
During a compression test it is found that Cyl No 2 increases significantly with a few drops of engine added to the cyl bore:
Indicates that the valves are leaking
The valve timing is incorrect
The oil control ring is worn excessively
None of the above.
The engine stroke is best measured with a:
D.T.I
External Micrometer
An Engineering steel rule
None of the above
A light metallic knocking noise is heard from under the engine bay when accelerating:
This could be detonation
Pre-Ignition
Caused by excessive engine operating temperature causing the fuel
All of the above
A normally aspirated engine will achieve:
More that 100% Thermal efficiency
More than 100% Volumetric efficiency
More than 100% Engine Power
Less than 100% Volumetric efficiency
A normally aspirated engine may be described as:
An engine with a thermal efficiency of over 100%
An engine with less 100% volumetric efficiency
An engine with more that 100% volumetric efficiency
An engine that is pressure charged
The oil pressure warning light is operated by:
Very low pressure in the main gallery
Very high pressure in the main gallery
An over rich oil supply
Normal running
An engine driven water pump is of the:
Centrifugal type
Positive displacement type
A combination of both types
None of the above
