轮机英语单项选择题每日一练(2019.08.13)

单项选择题
A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct （）.
A.compression pressure
B.compression test
C.compression ratio
D.compression clearance
单项选择题
The term "load on top" is used on many crude oil carriers, is to provide a method for （）.
A.calculating the ullage in the cargo tanks
B.loading ballast by gravity
C.the loading of new cargo into the slop tank as a procedure to minimize pollution
D.calculating the ratio of cargo expansion in a cargo tank
单项选择题
I remember （）the oil separator the day before yesterday But it failed again.
A.to repair
B.to be repaired
C.repairing
D.being repaired
单项选择题
The（） is fitted in pair one is the main valve, the other the auxiliary or standby.
A.main stem stop valve
B.auxiliary steam stop valve
C.feed check or control valve
D.blow down valve
单项选择题
Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?（）
A.Excessive valve train lubrication
B.Leaking standby oil cooler core
C.Excessive lube oil pressure
D.Excessive lube oil in the system