A.central air condition system
B.high velocity system
C.low velocity system
D.single duct system
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A.mechanical energy
B.heat energy
C.potential energy
D.kinetic head
A.backwards
B.forwards
C.upward
D.downwards
A.air chamber
B.head lank
C.primer
D.prime mover
A.eye
B.hole
C.balance holes
D.opening
A.Carry out soot blowing if permissible
B.Change fuel supply to diesel oil
C.Close steam stop valves on boiler when pressure is reduced
D.Drain boiler empty when it has cooled down
最新試題
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The cetane rating of diesel fuel is an indication of the （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Using a file without a handle may result in （）
Under MARPOL Code the ship to which it applies has to carry （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
（） is not installed on the main switchboar.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）