A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosion
B.The stern bearing alignment with the stern frame should be checked
C.The interior of the stern tube should be inspected for leaks
D.The shaft liner should be removed and inspected
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A.Mill
B.Float
C.Warding
D.Second cut
A.round out
B.round file
C.reamer
D.hole driller
A.low temperature hardening
B.case hardening
C.annealing
D.tempering
A.Develop ductility
B.Improve machining qualities
C.Relieves stresses
D.All of the above
A.Dye penetrant
B.Magnetic particle
C.Ultrasonic
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When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
To proceed to the assistance of a ship in distress is（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Using a file without a handle may result in （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）