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16 Cards in this Set
- Front
- Back
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THE FIREMAIN SYSTEM ORIGINATE BELOW SEA LEVEL WITH____
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sea chest
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Which is the last valve you open before putting the pump on line and the first valve you will shut when securing the pump
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The fire pump discharge valve.
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WHICH 3 VALVES ARE USED TO ISOLATE FIREMAIN SYSTEM COMPONENTS
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Cross connect, discharge and cutout valves
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IN THE FIREMAIN SYSTEM, PRESSURE REDUCING VALVES ALLOW YOU TO DO WHAT?
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decrease the pressure of firemain water that is going to be used by other systems.
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NAME SOME OF THE DIFFERENT TYPES OF CUT OUT VALVES
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Gate, ball, globe (pump discharge), or high performance butterfly valves
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SECONDARY OR ALTERNATE FIREMAIN MONITORING IS CONDUCTED FROM WHERE?
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the damage control deck or under emergency conditions, at the pump.
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WHAT ARE THE 3 DIFFERENT METHODS TO CONTROL FIRE PUMP OR FIREMAIN OPERATIONS
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Local, remote, and automatic methods
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WHAT ARE RELIEF VALVES?
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Relief valves protect the firemain system from over-pressurization by relieving pressure
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AT WHAT RELIEVING PRESSURE DO THE RELIEF VALVES PROTECT THE FIREMAIN FROM OVERPRESSURIZATION?
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at approximately 50 pounds per square inch gauge (psig) above the firemain design pressure.
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WHERE IS A COUPLING GUARD INSTALLED?
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over the rotating shaft of the fire pump.
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WHICH PIPE RUNS FOR TO AFT OF SHIP AND CARRIES FIREMAIN WATER?
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main
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WHAT FIREMAIN SYSTEM HAS ONE MAIN THAT EXTENDS FORE TO AFT?
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single
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WHAT DOES THE VERTICAL OFFSET LOOP CONSIST OF?
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consists of two single fore and aft cross connected mains. However, the two mains are separated both vertically and horiZontally.
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What system consists of two single fore and aft cross connected mains. These two mains are installed in the same horizontal plane but are separated athwartships. (one main is port and the other is starboard) and as far as practical.
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HORIZONTAL LOOP SYSTEM
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COMPOSITE FIREMAIN
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2 mains installed on the DC deck, separated athwartship. A bypass main is normally installed at the lower level near the centerline, and cross connections are installed alternately between one service main and the bypass main.
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WHAT ARE SOME THINGS THAT HAPPEN DUE TO A FAILED FIREPUMP
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loss of chillwater/ not at 100%, loss of sprinkler pressure, loss of firemain pressure for firefighting systems
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