R/O UNIT
Exceptional bromine levels is maintained between what ranges?
0.2 - 2.0 ppm bromine
How many water mist skids onboard, and what machinery spaces are protected by water mist?
(2) No.1 Fwd Pmp Rm, No.2 Waterbourne
Aux 1, Aux 2, GTMR, MMR
What is the primary use of the shipboard potable water?
Crew consumption, hygiene, food preparation, and ship/aircraft wash down.
What spaces does the secondary educator located in the pump room serve?
Fore-peak tank and Chain locker
What happens when the salinity cell reading exceeds 500 ppm?
A signal is sent to the solenoid dump valve. The dump valve closes, the pressure builds up and at 30 psi water is drained into the R/O skid blige
When the water mist system is activated, if the lead pump doesn't activate after how many seconds the MPCMS automaticaly switches to the lag pump skid?
(10) Seconds
The potable water system can be divided into what three sections?
Hot potable water
Cold potable water
Inline brominating
Secondary drainage educator is rated at how gallons per minute?
260 GPM
Seawater temperature is at 45 degrees Fahrenheit, is the seawater heater on or off?
On, the heater cuts on at 50 degrees Fahrenheit.
With the water mist system activated, what automatically happens when the tank reaches 50% water capacity?
The water mist transfer pump will automatically align even with a faulty TLI reading, from ships potable water tanks and fill the depleted tanks
What safety features help protect the hot water heater tank? And what are they rated at?
Relief Valve and Over Temperature Valve
85 PSI and 210 degrees farenheit
What are the dangers associated with the operation of an installed educator?
-An asphyxiation hazard
- Flooding hazard
Prior to seawater entering the R/O membrane, at what pressure range the high pressure pump boosts the seawater pressure to?
700- 1000 psi
In the event that the water mist system valves are closed while the pump skid is in operation, what component helps relieve the full flow pressure? And at what pressure?
Full Flow Pressure Relief Valve
At 1,500 PSI
MPCMS monitors each potable water tank level, what is the low level and high level alarm percentage?
5,030 Gallons
What is the first step in aligning an installed educator?
Open the Overboard discharge valve
Walk me through the process of a drop of salt water from the ocean changing to a potable water droplet in the potable water tank
(O_O)
What is the tank capacity for AFT fresh water tank?
2166 GAL
What is the maximum potable water capacity that can be held onboard? (excluding medicals emergency tank)
5,030 Gallons
On the suction line vacuum gauge, at what vacuum pressure should your pressure gauge reads than for proper suction?
-8.0 kPa