Oxygen System

Question 1

Flight crew oxygen is supplied by __________ located in the E&E compartment.

Answer 1

Single cylinder

Question 2

The max servicing pressure for flight crew O2 bottle is?

Answer 2

1850 psi

Question 3

When testing the oxygen mask, the appearance of a _____________ indicates oxygen flow on the oxygen flow indicator.

Answer 3

yellow cross

Question 4

The passenger O2 system is activated automatically by a pressure switch if the cabin altitude reaches ________ or when the _______ switch is selected ON

Answer 4

14,000 feet; PASS OXYGEN

Question 5

Once a passenger chemical O2 generator is activated, Oxygen flows continuously at 100 percent concentration for approximately ____________

Answer 5

12 minutes

Question 6

Below _______ feet cabin altitude, do not initiate the use of passenger oxygen if smoke or fire is present.

Answer 6

14,000

Question 7

What are you checking when checking the green oxygen indicator disc on the bottom right side of the fuselage?

Answer 7

The absence of the disc indicates a thermal discharge of the crew’s oxygen cylinder has occurred. Call mx to replace

Question 8

T/F: The passenger oxygen system prevents the passengers from inhaling smoke if there was a fire.

Answer 8

False. For this reason, don’t deploy pass oxygen when smoke or fire is present below 14,000’