更多"An emergency bilge pumping system i"的相关试题:
[单项选择]The emergency bilge suction or bilge （） is used to prevent flooding of the ship.
A. injection valve
B. relief valve
C. discharge valve
D. inlet filter
[单项选择]The emergency bilge suction or bilge injection valve is used to prevent （） of the ship.
A. proceeding
B. overloading
C. collision
D. flooding
[单项选择]A simple pumping system consists of a suction branch, a pump and （）.
A. a priming device
B. a discharge branch
C. a filter
D. a suction valve
[单项选择]The emergency bilge suction valve is typically used （）.
A. to inject cleaning additives when the bilges are extremely dirty
B. when the main condenser becomes fouled, in order to provide additional cooling water circulation
C. to connect the rose box to the independent bilge suction
D. if the bilges become flooded and they can not be emptied by any other means
[单项选择]When installed for bilge pumping or ballast duty, centrifugal pumps require a （） to remove air from the suction pipe.
A. air chamber
B. head lank
C. primer
D. prime mover
[单项选择]The （）pump is usually used as the emergency bilge pump.
A. turbine
B. screw
C. vane
D. ejector
[单项选择]The bilge system has been performing well; however, the aft starboard engine room bilgewell suddenly fails to be pumped outWhich of the following should be done first to determine the cause?（）
A. Open the bilge pump for inspection
B. Remove each of the manifold valves
C. Remove only the manifold valve to the affected bilge-well
D. Attempt to pump out another bilge well to determine if the entire system is affected
[单项选择]（）is main emergency fire system in all merchant ships.
A. CO2 system
B. Foam system
C. Dry power system
D. Water supply system
[单项选择]If one of the bilge system manifold valves does not properly seat, the （）
A. bilge well connected to that valve, plus the second bilge well being pumped will be completely emptied
B. bilge system will lose vacuum and prevent the other bilges from being pumped out
C. bilge well aft connected to that valve will siphon its contents to the forward bilge wells
D. discharge pressure will be too high
[单项选择]Bilge keels are more effective at clampening rolls as the（）.
A. pitching increases
B. list increases
C. rolling increases
D. dreft increases
[单项选择]The emergency generator or emergency battery is connected to（） on most large ships.
A. distribution boards
B. section boards
C. emergency switch boards
D. main switch boards
[单项选择]A centrifugal bilge pump requires priming （）.
A. primarily to lubricate the shaft seals
B. due to the inability of this type of pump to lift water to cover the suction (eye) of the impeller
C. to initially unload the pump by having its head pressure equal to discharge pressure
D. in order to overcome the potential energy of water in the discharge line
[单项选择]According to the SOLAS convention, the bilge water system （）
A. must connect the bilge well suction directly
B. should not pump out the water accumulated in the cargos
C. should not used for emergency drainage in case of ship collision
D. should connect to the fire fighting system directly
[单项选择]The bilge main is arranged to drain any watertight compartment （） ballast, oil or water tanks and to discharge the contents overboard.
A. rather than
B. other than
C. in addition that
D. except for
[单项选择]If an operating bilge pump is developing good vacuum, but is unable to discharge any water, which of the following problems is the most probable cause?（）
A. The wearing rings are excessively worn
B. The suction strainer is clogged
C. The discharge valve is clogged
D. The shaft is worn
[单项选择]The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by （）.
A. Classification Society Rules
B. National requirements
C. The IMO International Convention for the Safety of Life at Sea
D. All of the above
[单项选择]When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）
A. Foam
B. Solid stream water nozzle
C. All-purpose nozzle
D. Carbon dioxide
[单项选择]Before loading bulk grain, bilge wells must be covered to（）.
A. add strength to the bilge well strainer
B. permit rapid flow of water to the bilge wells
C. prevent cargo sifting into the bilge wells
D. preven oil, water , or other liquid from reaching the cargo
[单项选择]Bilge keels are fitted on ship to（）.
A. assist in drydock alignment
B. improve the vessel's stability
C. protect the vessel from slamming against piers
D. reduce the rolling of the vessel
