單項選擇題

Which of the following problems could cause air to blow out through the inlet air filter of a running compressor?（）

A.Excessive compression in the cylinder
B.A broken intake valve
C.A dirty inlet filter element
D.An improperly adjusted discharge valve

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單項選擇題

In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）

A.Constant tension mooring winch system
B.Hatch cover system
C.Watertight door system
D.Internal combustion engine hydraulic starter system

單項選擇題

Which of the following problems would be the probable cause for the faulty operation of a reciprocating air compressor suction valve?（）

A.Carbon build up in the piston ring belt
B.Faulty operation of a cylinder un-loader
C.Compressor operation in an area of high relative humidity
D.Lifting of intercooler rebel valve