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what is the flash-point of an oil and what dies it indicate?
give a list of the properties or tests by which a lubricating oil may be specified or a decision made on its ...
what are the reasons for the deterioration in the quality of the fuel supplied for use in marine diesel engines?
name the various types of crude oil and briefly describe the refining processes by which petroleum fuels and lubricants are produced.
what are fossil fuels and how do they differ from other types of fuel? which fossil fuels are used in diesel engines?
what is the value of the maximum load that a diesel engine cylinder cover and piston are subjected to? give an example ...
basically two different areas of maintenance work are involved in keeping diesel engines in good operational order. name the two areas and ...
how are the air inlet and exhaust valves of a diesel engine opened and closed? what forces must be applied to open ...
how are the bearings of diesel engines lubricated? what do you understand by the terms fluid-film lubrication and boundary lubrication?
how is the combustion chamber formed in diesel engines? what governs its shape?
why is it necessary to cool the cylinder heads or covers, cylinder liners and pistons of diesel engines? what is used as ...
why has the cross-scavenged engine been superseded by the uniflow-scavenged engine?
what are the advantages and disadvantages of cross-scavenged and uniflow-scavenged engines?
name the factors an engine designer considers in the selection of the compression ratio for a compression ignition engine. give some examples ...
what do you understand by the following terms: swept volume, clearance volume, compression ratio, volumetric efficiency, scavenge efficiency, air charge ratio, natural ...
what is an opposed-piston engine and how are the cranks arranged? what advantages and disadvantages do these engines have?
what are the relative advantages of crosshead and trunk-piston type engines?
what is an internal combustion engine? name the various types.
what are the usual causes of starting air valve leakage?
how are engine-starting air valves operated? what attention do they require?
what are common causes of difficulty in starting small manually started diesel engines?
how can fuel be taken off a cylinder without stopping the engine?
briefly describe the principle of the fuel-injection pump and give reasons for the important points of design.
are any specifications available covering quality of fuel oil?
what is grease and where is it used?
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