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28 Cards in this Set
- Front
- Back
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What does RAST stand for?
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Recovery
Assist Secure Traverse |
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What is the purpose of RAST?
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to help land and secure the helo on the deck.
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TGW?
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Tail Guide Winch
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How many TGW and where are they located?
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2. Port and Starboard sides of the flight deck
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Where do TGW secure to
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to tail end of helo to straighten it before entering the hanger.
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How many AC's do we have on board? Where are they located?
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4. 1 & 2 in AUX 1 and 3 & 4 in JPe pump room.
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What is the capacity of the ACs?
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200 ton York Centrifugal
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What is the prime purpose of the AC units?
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to maintain chill water at 42-48 degrees for cooling equipment.
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What is the secondary purpose of the AC units?
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Fan coil units for the crew.
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How many reefers do we have onboard? Where are they located?
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2. AUX 1
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What type of reefers do we have?
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1.5 ton piston type compressor.
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What is the purpose of the reefers?
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to remove heat from 2 freeze boxes and one chill box.
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What is the RO unit?
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Reverse Osmosis.
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How does the RO unit work?
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Sea water pumped at high pressure through a duplex strainer, 20 micron and 5 micron filters and three membranes.
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Where is the RO unit located?
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AUX1
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What does the RO unit do?
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created potable water after it is brominated.
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How many Evaps do we have? Where are they located?
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2. AUX 1
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What types of evaps do we have?
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2 stage flash type.
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what do evaps provide?
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feed water for boilers before bromination. After bromination potable water.
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How mauch water can our evaps produce daily?
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12,000 gal each
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How many potable water tanks do we have and where are they located?
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4. 1 & 2 in FWD pump room and 3&4 in shaft alley.
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What is the capacity of the water tanks?
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1&2 3,000 gal each
3&4 7,0000 gal each |
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What is potable water brominated to?
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.2 ppm at sea and 2.0ppm in port if from a non DOD source.
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How many bromination stations do we have?
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2. 1 in FWD pump room and 1 in shaft alley.
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What are the first 3 stages of distillation?
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1.) Feed water pump takes suction from sea chest
2.) passes through Helen strainer 3.) picks up heat from 2nd and 1st stage distallate coolers |
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What are the 2nd 3 steps to distillation?
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4.) water enters feed heater
5.) water enters 1st and 2nd stage 6.) water is boiled at 165-175 F under a vacuum |
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What are the 3rd 3 steps to distillation?
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7.) each stage uses demister pads to separate brine.
8.) brine is pumped over by brine pump 9.) Condensate circulates from boilers to Evaps |
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What are the last stages of distillation?
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Distillate pump moves the distillate to be brominated and then to potable water tanks.
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