A.The cable lifter
B.The hoisting motor
C.The topping wire
D.The life-raft
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A.stays
B.winches
C.barrels
D.brakes
A.fire-tubes
B.furnaces
C.water drums
D.water wall tubes
A.The three moving vanes and the three fixed vanes form three pressure chambers
B.The three moving vanes and the three fixed vanes form six pressure chambers
C.The three moving vanes and the three fixed vanes form nine pressure chambers
D.The three moving vanes and the three fixed vanes form twelve pressure chambers
A.It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliary
B.The auxiliary gear could be power operated in passenger ships
C.The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speed
D.All moving parts of the steering gear must be guarded against any possible damage
A.Only one pump should be used at any time
B.The ship speed should be reduced to 70% of the normal
C.Watch keeping of the steering gear should be increased
D.Limitations of the steering gear should be logged but the bridge need not be informed
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Low compressor head pressure in a refrigeration system can be caused by().
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be ().
Thermostatic expansion valves can be adjusted for ().
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
The control mode in which the final control element is moved from one of two flexed positions to the other is known as ().
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by ().
The output volume of a positive fixed displacement pump can be changed only by ().
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its ().
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is ().
An excessive charge of refrigerant in an air-cooled refrigeration system can cause ().