轮机英语船舶电气与船舶安全单项选择题每日一练(2019.01.21)

单项选择题
A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an （）
A.torque limiter
B.over-speed trip
C.over-speed governor
D.load limit governor
单项选择题
A water pump can not supply water after startingIt may be caused by （）.
A.closed discharge valve
B.broken pipe line
C.worn shaft
D.both A and B
单项选择题
Which of the following equipment is not pollution prevention equipment?（）
A.oily water separator
B.sewage treatment plant
C.fuel oil separator
D.incinerator
单项选择题
The pressure difference before and after the lube oil filter indicates （）the filter should be cleaned.
A.when
B.how
C.where
D.whether
单项选择题
Black smoke exhausting from a diesel engine indicates（）
A.proper fuel injection
B.water in the fuel
C.incomplete combustion
D.burning of lube oil