LOX System Service 121401.0

Question 1

Adequate serviceable fire protection equipment must be within how many feet of LOX servicing operation

Answer 1

50 ft

p 2

Question 2

Persons not directly involved in oxygen servicing operations shall be kept outside the _____ ft radius of the LOX servicing safety zone

Answer 2

20 ft

p 2

Question 3

If LOX spills on asphalt or concrete expansion joint sealant, stop servicing or other operations within a _____ ft radius of area where spilled occurred. Do not walk or roll equipment over the area of the spill for at least _____ minutes

Answer 3

20 ft

30 minutes

p 3

Question 4

LOX carts shall be parked or stored how far from: 1. structures having fire resistant or non-combustible exterior walls or with automatic fire extinguishing systems, 2. combustible structures or sources of ignition, including heavy traffic areas where equipment is in operation, or smoking areas, 3. airplane parking, fueling, or refueling

Answer 4

1. 25 ft
2. 50 ft
3. 75 ft

p 3

Question 5

LOX carts shall be parked with the vent valve how, and transported with the vent valve how

Answer 5

parked- open
transport- closed

p 3

Question 6

If oxygen system has been empty for more than how many hours, or empty after flight, and system pressure is depleted, oxygen system shall be purged prior to servicing with LOX

Answer 6

2 hours

p 4

Question 7

How should the servicing cart be positioned when servicing the aircraft

Answer 7

tow hitch towards aft of the aircraft, control panel perpendicular to servicing port set parking brake ground servicing cart park tow vehicle 50 feet from servicing operation

p 4, 5

Question 8

What oxygen cleaning compound is used for lox parts( hose adapter, servicing port, etc)

Answer 8

octagon

p 5

Question 9

How long do you allow aircraft to stabilize after servicing

Answer 9

30 minutes

p 6