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船舶电气与船舶安全题库
题数
2000
考试分类
船舶电气与船舶安全
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¥30
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简介
船舶电气与船舶安全
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章节目录
题目预览(可预览10题)
【单选题】
[1/2000]（）, the engine must be stopped immediately.
A.
Should knocking occur
B.
If knocking occur
C.
Should if knocking occurs
D.
If occur knocking
参考答案：
A
参考解析：
无
【单选题】
[2/2000]The switchboards are those in which all the live parts are installed behind the panels and only the ...
A.
open
B.
open front type
C.
live front type
D.
dead front type
参考答案：
D
参考解析：
无
【单选题】
[3/2000]Which of the following statements is true concerning the cetane number of diesel fuel?（）
A.
The cetane number affects the amount of injection lag
B.
The cetane number is an indication of the fuels viscosity
D.
The cetane number is of little significance in the combustion proce
参考答案：
C
参考解析：
无
【单选题】
[4/2000]Great care is dedicated to the removal of from the scavenge air（）
A.
gravity
B.
viscosity
C.
density
D.
humidity
参考答案：
D
参考解析：
无
【单选题】
[5/2000]Piston cooling fins are located（）
A.
atop the piston crown
B.
beneath the piston crown
C.
at the base of the piston skirt
D.
inside the cylinder liner cooling water jacket
参考答案：
B
参考解析：
无
【单选题】
[6/2000]The volute of centrifugal pump also acts as a diffuser converting （）into pressure head.
A.
mechanical energy
B.
heat energy
C.
potential energy
D.
kinetic head
参考答案：
D
参考解析：
无
【单选题】
[7/2000]Which of the diesel engine components listed increase air density and helps to improve engine operat...
A.
Impeller
B.
Compressor
C.
After-cooler
D.
Exhaust differ
参考答案：
C
参考解析：
无
【单选题】
[8/2000]Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.
A.
sounding the tank
B.
waiting for the vessel to list
C.
examining tank boundaries
D.
checking fuel oil strainer
参考答案：
A
参考解析：
无
【单选题】
[9/2000]A “dead front” switchboard is one （）.
A.
without switches on it
B.
with insulated switches and no exposed terminals
C.
without circuit breakers
D.
without safety hand nails nor rubber mat
参考答案：
B
参考解析：
无
【单选题】
[10/2000]Remote control means that （）.
A.
the system is manned manually
B.
the system is situated remotely from the operator
C.
the system is controlled automatically
D.
all the above
参考答案：
B
参考解析：
无
