Oxygen

Question 1

(767) where can the portable oxygen bottles be found on board (PRM not installed)

• two portable oxygen cylinder assemblies are installed; one in the lavatory and one above the cargo access door
• two portable oxygen cylinder assemblies are installed; one in the laboratory and one Ford of the lavatory bulkhead above the crash axe
• 1 - Lavatory, - 1 adjacent to supernumerary seats, 1- above cargo access door

Answer 1

• 1 - Lavatory - 1 - adjacent to supernumerary seats, 1- above cargo access door

Question 2

Quick donning full face dilutor demand oxygen masks are installed in which positions?

• all supernumerary seat positions
• Captain and first officer only
• Captain, first officer, and first observer

Answer 2

• Captain, first officer, and first observer

Question 3

(757) how many portable oxygen bottles are found on board and where are they located?

• two portable oxygen cylinder assemblies are installed; one in the lavatory and one outboard and adjacent to the second observer seat
• two portable oxygen cylinder assemblies are installed in the lavatory
• two portable oxygen cylinder assemblies are installed; one in the lavatory and one Ford of the lavatory bulkhead above the crash axe

Answer 3

• two portable oxygen cylinder assemblies are installed in the lavatory

Question 4

What is the maximum drop in O2 pressure during pre-flight?

• 80 psi
• 100 psi
• 200 psi

Answer 4

• 100 psi

Question 5

During pre-flight, what should the NORMAL/100% switch on the O2 mask be set to?

• 100 %
• NORMAL
• Emergency

Answer 5

• 100%