A.The cylindrical barrel is coupled to the motor
B.The cylindrical barrel has an odd number of bores
C.The bores end in sockets
D.The sockets fit in the swash plate
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A.The rams work inside cylinders
B.The cylinders have glands sealing their open ends
C.The rams are connected to a cross-head
D.The cross-head is mounted on the rudder stock
A.keep the air from being carried into the engine
B.keep the moisture from being condensed
C.keep the danger from being carded into the engine
D.take away the condensate from the air
Which of the following operations need to be entered on the Oil Record Book Part I? （）
(1) Ballast of fuel oil tanks
(2) Condition of oil discharge monitoring and control system
A.（1）only
B.（2）only
C.both（1）and（2）
D.neither（1）nor（2）
Which of the following operations need to be entered on the Oil Record Book Part I?（）
(1) Cleaning of fuel oil tanks
(2) Internal transfer of fuel oil
A.（1）only
B.（2）only
C.both（1）and（2）
D.neither（1）nor（2）
Which of the following operations need NOT to be entered on the Oil Record Book Part I?（）
(1) Disposal of oil residues
(2) Internal transfer of fuel oil
A.（1）only
B.（2）only
C.both（1）and（2）
D.neither（1）nor（2）
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Which of the following statements is correct concerning heat transfer?（）
Low compressor head pressure in a refrigeration system can be caused by（）.
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A pressure drop through the refrigerant liquid line may cause （）.
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