Ventilation

Question 1

Uses of ventilation?

Answer 1

Cooling of electronic equipment. 
CBRN. 
Habitability. 
Main machinery space cooling. 
Galley ventilation.

Question 2

Configurations of ventilation?

Answer 2

Fan supply and fan exhaust
Fan supply and natural exhaust
Natural supply and fan exhaust
Natural supply and natural exhaust

Question 3

Common filters?

Answer 3

Panel filters
Supply filters 
Grease filters
Lint filters 
Dust filters
Flameproof gauzes

Question 4

Special requirements?

Answer 4

Galleys 
Store rooms
Auxiliary machinery spaces
Sewage treatment spaces
Separate exhaust systems
Magazines

Question 5

AFUS three sections?

Answer 5

Pre-particulate filter
Particulate filter
Gas filter

Question 6

Reason for a pre-particulate filter?

Answer 6

Paper filter that removes course particulate matter.

Question 7

Reason for a particulate filter?

Answer 7

Made of glass fibre, remove particulate such as bacteria by entrapment.

Question 8

Reason for a gas filter?

Answer 8

To remove all known chemical warfare agents in form gases or vapours by absorption.

Question 9

Describe Citadel?

Answer 9

As a whole ship chemical, biological and nuclear shelter.
Formed by closing the ship down to an increased gas right state.
Works by increasing the atmospheric pressure within the ship above external pressure using air filtered by AFU units.

Question 10

Citadel tests in order?

Answer 10

Annually 
Prior to DED
During harbour acceptance trails 
During sea acceptance trails
During FOST work-up

Question 11

AFU’s are used in?

Answer 11

CBRNDC STATE 1 condition ZULU ALFA