6.10 Ventilation and Desmoking - 6.10 Ventilation and Desmoking

Question 1

Ventilation

Answer 1

The introduction & movement of fresh air into a space to remove contaminated air or to control the temperature of the space or tank.

Question 2

Types of Ventilation

Answer 2

General
Supply
Exhaust
Natural

Question 3

Collective Protection System (CPS)

Answer 3

Provides contamination-free environment using specially designed filtration equipment integrated into to the ship’s HVAC system

Question 4

CPS Levels

Answer 4

One
Two
Three

Question 5

CPS Level One

Answer 5

Safe Haven
Shelter Envelope: provides protection for berthing, messing, sanitary, and battle dressing facilities for 40% of the crew

Question 6

CPS Level Two

Answer 6

Surprise Attack Survival
Minimum Operational Envelope: expanded area of total protection (TP) coverage that includes the Level One shelter envelope and key operational functions

Question 7

CPS Level Three

Answer 7

Maximum Operational Envelope: sufficient TP coverage of the ship for mission requirements except for flight deck and well deck operations

Question 8

Electric Box Fan

Answer 8

115 A/C Electric fan
Moves 3200 cubic feet of air/min
Used with smoke curtains to create smoke control zones using installed ventilation or CPS

Question 9

RAM Fan 2000

Answer 9

Water turbine actuated by Firemain or P-100 Pump which operates Fan Blades
Moves 2000 cubic feet of air/min
Must be grounded to prevent static electricity build up
Used with elephant trunks to direct contaminated air

Question 10

Active Desmoking

Answer 10

Removing smoke & heat from the smoke control zone between the inner & outer smoke boundary prior to extinguishing the fire
Shall not be used to remove smoke & heat from the fire compartment