Shipboard Cryogenic O2N2 Production & Use

Question 1

How many Phases those the course present?

Answer 1

4 Phases

Question 2

Atmospheric Air

Answer 2

21% Oxygen
78% Nitrogen
1% Rare gases
Water Vapor

Question 3

Processed Atmospheric Air on board Ships

Answer 3

Liquid Oxygen at 98%
Liquid Nitrogen at 99.5%
by cryogenic cooking and fractional distillation

Question 4

What ships contains cryogenic equipment?

Answer 4

Aircraft Carriers
Submarine Tenders
Hospital Ships

Question 5

Liquid Oxygen

Answer 5

Aviator’s Breathing and Space conservation

Question 6

Gaseous Oxygen

Answer 6

Medical, Dental and HT’s uses

Question 7

Liquid Nitrogen

Answer 7

Used for freeze seals and shrinking parts of machinery repair and for some medical procedures

Question 8

Gaseous Nitrogen

Answer 8

Used for purging tanks, boiler lay-ups, pressurizing weapons systems, hydraulic accumulators, aircraft tires and struts, as well as other maintenance applications

Question 9

3 Level maintenance

Answer 9

• Organizational Level Maintenance (ship’s force)
• Intermediate Level Maintenance (IMA/Tender)
• Depot Level Maintenance (Shipyard)

Question 10

O2N2 parts are specially cleaned IAW?

Answer 10

MIL-STD-1330D