Ventilation

Question 1

Know the difference between natural, mechanical, supply, exhaust, and recirculation ventilation and which spaces each serve.

Answer 1

SPIN MR NE
1. Supply - Air coming from the outside to the inside

2. Installed - onboard ventilation systems (DO NOT USE RECIRCULATION OR A/C TO DESMOKE A SPACE)
3. Natural - the natural flow of air; typically requires at least 02 weather openings
4. Mechanical - ventilation manually brought into the space, e. g. box fan, ram fan, etc.
5. Recirculation - Air moving inside without leaving the ship
6. Exhaust - Air coming from the inside to the outside

Question 2

Where are the five machinery ventilation cut-offs?

Zone 1-5

Answer 2

ALL on 2nd deck above their respective space

Zone 1: Diesel 1- inside vestibule down to Aux 1 — next to the port female 12 man

Zone 2: Diesel 2 inside vestibule down to Aux 2 (vestibule next to prop shop)

Zone 3: Turbine Room (just outside DCC 2nd deck

Zone 4: Motor Gear Room port side 2nd deck across the ladderwell to ECC) near the EM stores locker

Zone 5: Motor Room (port side of science horseshoe on stbd bulkhead just before making the turn

Question 3

Where is the emergency ventilation cut-offs for the hangar and the Zebra ventilation?

Answer 3

All in DCC

Question 4

Where is the emergency vent cut-offs for the boilers?

Answer 4

2nd deck outside of the boiler shack and outside of the CALMS office