Before shutting off the fuel supply to stop a medium or high–speed diesel engine, why is it necessary to allow the engine to idle for a few minutes?（）

Charging is the filling of the engine cylinder with a supply or charge of fresh air （） compression.

The loss of the diesel engine cylinder air charge through leaky valves, piston rings, worn or scored liners, would be indicated by which of the following sets of conditions?（）

Since the burning or combustion takes place within the engine itself, the engine is known as （）.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

The bore of a diesel engine cylinder describes the （）

Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?（）

In the construction of a diesel engine, what is the purpose of end plates?（）

Diesel engine mufflers or silencers reduce the engine exhaust noise by （）

In a trunk type diesel engine piston, the thickness of the head or crown is determined by the（）
Ⅰ.statically balanced
Ⅱ.heat dissipation requirement