Week 3 Flashcards
Function of the trim system?
Adjust pitch and Heel
Supply sea water sanitary tank
Provide emergency cooling supply
Trim system associated tanks?
FWD trim tank
AFT trim tank
TOT
WRT
What does the trim pump do ? And how is it operated?
Move water from one location to another to change to required trim
Remotely or locally
What is a diverted valve?
It’s a valve that controls direction of flow in a single direction
The function of valves?
And the emergency operation of a valve?
To allow opening/shutting a pathway for fluids to travel in a system
To have a hydraulic accumulator facility
Function of the the ballast system ?
Adjust subs bodily weight
Used for fire fighting ops
Provide a rapid deballast
What two-speed units does the MP Ballast pump have?
Fast- ballasting operations
Slow-hover and trimming operations
Function of ‘hover’?
For slow speed depth keeping
What is the main international convection covering prevention of pollution of the marine environment called ?
MARPOL 73/78
What tanks are in the bilge system ?
Clean bilge tank Dirty bilge tank Contaminated oil tank No active drain tank Precipitator drain tank
Hazards associated with the systems ?
Flooding
Internal leak
Contaminants
Function of astute MP Ballast system?
Adjust subs buoyancy using ‘M’ comp tanks
Uses MP pump as trim pump
Supplies sea water for fire fighting
Function of Astute HP Ballast system
Adjust subs buoyancy using ‘O’ comp tanks
Back-up HP bilge system
Pump water overboard from flooded compartments
Function of astute LP Bilge system?
Collect water from bilge to maintain clean and dry conditions
Remove oil from dirty water
Discharge ashore
Function of astute HP bilge system ?
Discharge overboard
Pumper water overboard from flooded compartments
Provide back-up for HP ballast pump
System code for HP and LP Bilge system?
BS
System code for trim and ballast system ?
WS
Key components of ballast system ?
Compressing tanks HP ballast pump MP ballast pump Ballast hull valves Hydraulic control valves
Where are the ‘M’ and ‘O’ tanks ?
‘M’ tanks- FWD of RC
‘O’ tanks - Aft of RC/below DG room
System code for bilge and ballast priming system ?
PS
Where is the HP bilge priming equipment found ?
Engine room
Where is the HP ballast priming equipment found ?
DG room
Where is the MP Ballast priming equipment found ?
EMS
Function of a sealing tank ?
Provide a water seal for priming system by using a water ring seal
