單項選擇題

Why are some diesel engine cylinder liners plated on the wearing surface with porous chromium?（）

A.The chromium will not wear out the piston rings
B.The chromium strengthens the liners in the way of the scavenging air ports
C.Chromium eliminates the need for oil scraper rings
D.Pores in the plating aid in maintaining the lube oil film

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單項選擇題

If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will （）

A.decrease until the engine speed increases
B.increase as the load increases
C.decrease as the load
D.increases remain unchanged

單項選擇題

The International Code for the Construction and equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code) is a part of （）

A.SOLAS
B.MARPOL
C.STCW
D.Ballast Water convention

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Why are some diesel engine cylinder liners plated on the wearing surface with porous chromium?（）

你可能感興趣的試題

If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will （）

The International Code for the Construction and equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code) is a part of （）