Shipboard Drainage System Flashcards
Two ways of draining a space
Power Flow
Gravity Flow
Main drainage system use to?
Dewater Main Space
Secondary Drainage system use to dewater?
Foward & AFT of machinery spaces
Special Drainage use for?
Amunition & Sanitation
When aligning a eductor there is a possibility danger of _______
Asphyxation
Once Space has been dewater ensure the space has ______?
Oxygen
Who gives permission for eductor operation underway?
EOOW
Who gives permission for eductor operation inport?
EDO
When securing eductor what are the steps
Close Suction
Close Firemain
Close Discharge
What is true baout secondary system?
Independent from the main system
Last step for aligning eductor?
Open Suction Valve
Gravity drains classified as?
Special Drainage system
Magazines located above & adjecent to weather deck drain trough check valve to _______
Weather Deck
Outside influence effects?
Loss of firemain pressure
Who is responsible for drainage system maintenance?
Division for that space
