A.popular
B.common
C.in lead position
D.uncommon
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A.spur geared
B.screw geared
C.worm geared
D.belt driven
A.cranes
B.windlass
C.capstans
D.mooring winches
A.cranes
B.winch barrel
C.capstans
D.windlass
A.cranes
B.winches
C.capstans
D.windlass
A.a new bacteria colony should be put into the plant in advance
B.the disinfection chemicals should be always used
C.the air blower should be started and keep running in advance
D.the nutrient for bacteria should put into plant in advance
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
If separating effect is not good, which measure should be taken （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
The main purpose of port State control is not to（）
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
Under MARPOL Code the ship to which it applies has to carry （）
The cetane rating of diesel fuel is an indication of the （）