更多"On a ship，each emergency generator "的相关试题:
[单项选择]Each emergency generator on a mobile offshore drilling unit，when tested，must be run under a full load for at least（）.
A. one hour
B. two hours
C. ten hours
D. four hours
[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]Emergency generator is installed on board mainly to （）
A. connect to the busbar when the load increasing
B. supply power specially to charging panel
C. be put into operation during the ship arriving at or leaving port
D. ensure the power supply to critical equipment after the main switchboard out of power
[单项选择]A diesel driven emergency generator is prevented from being paralleled with the ships service generators by （）
A. an electrical interlock system
B. an automatic paralleling trip switch
C. the synchronizing oscilloscope
D. the reverse current relay
[单项选择]An emergency generator, driven by an internal combustion engine, shall be tested under load for a minimum of 2 hours at least once every （）
A. week
B. 2 weeks
C. month
D. 3 months
[单项选择]It （） for an emergency generator to require paralleling.
A. is usual
B. is not usual
C. is necessary
D. is not impossible
[单项选择]Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
A. American Petroleum Institute
B. National Standard Fire hose Coupling
C. American Society of Mechanical Engineers
D. Underwriter's Laboratories，Inc
[单项选择]Each fire pump on a ship must have a pressure gauge located at（）.
A. the pump discharge
B. the manifold connection
C. each fire station discharge
D. the pump station
[单项选择]An emergency diesel generator should automatically shut down in the event of （）
A. dangerous over-speeding
B. a loss of lube oil pressure
C. activation of the fixed CO2 system for the emergency generator space
D. all of the above
[单项选择]Each EPIRB required on a ship shall be tested using the integrated test circuit and output indicator every（）.
A. week
B. two weeks
C. month
D. two months
[单项选择]Standby or emergency diesel generator day tanks should always be kept full to reduce the possibility of（）
A. sediment contamination
B. fuel filter clogging
C. moisture formation
D. inadequate transfer pump suction head
[单项选择]Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure（）.
A. nitrogen
B. oxygen
C. carbon dioxide
D. water vapor
[单项选择]Your ship must（）.
A. Reduce speed
B. Increase speed
C. Change speed
D. Stop engine
[单项选择]Line throwing apparatus aboard ship must contain（）.
A. two rockets，one of which shall be the buoyant type
B. three rockets，one of which shall be the buoyant type
C. four rockets，two of which shall be the buoyant type
D. five rockets，two of which shall be the buoyant type
[单项选择]Chain suspension ladders on a ship must be replaced by fixed ladders if the required chain suspension ladder（）.
A. has been sent in for repair
B. cannot be supported against a vertical flat surface
C. does not extend to the water when the ship lists 15 degrees
D. is not equipped with vertical guard rails on either side
[单项选择]The master of a ship must collect general average contributions for the benefit of those entitled to them，whether they are cargo owners or ship owner，and（）the Shipowner’s lien on the cargo，where necessary，until they are paid.
A. exercise
B. take
C. make
D. have
[单项选择]The helicopter deck of a ship must be marked with the units identification，appropriate aiming circles，and a continuous line on the perimeter which is（）.
A. 8 inches wide
B. 16 inches wide
C. 24 inches wide
D. 32 inches wide
[单项选择]A ship must have a self-contained breathing apparatus to be used as protection from gas leaking from a refrigeration unit. To meet this requirement，you may use（）.
A. a gas mask certified by the Mine Safety and Health Administration
B. the same self-contained breathing apparatus required with the fireman's outfit
C. an oxygen breathing apparatus，provided that the device has been inspected within three years
D. a portable ventilation system that will provide a complete change of air every three minutes
