Question

Crew members require oxygen for the duration of the flight that exceeds 30 minutes and oxygen must be available to 10% of passengers or minimum 1 for flights ___________________________________________

A) Above 12,000 ASL
B) Above 14,000 ASL
C) Exceeding 30,000 ASL
D) Exceeding 35,000 ASL

Answer 1

For flights above 14,000 feet ASL, crew members require a constant oxygen supply, and supplemental oxygen must be available to at least 10% of passengers or a minimum of one.

Step-by-step explanation:

The question asks us to determine the specific altitude above sea level (ASL) where crew members require constant oxygen supply and where oxygen must be available to at least 10% of passengers or a minimum of one passenger for flights of certain altitudes. The correct answer is B) Above 14,000 ASL. At altitudes above 14,000 feet ASL, the partial pressure of oxygen in the atmosphere is low enough that supplemental oxygen is required to prevent hypoxemia. In commercial aviation, regulations stipulate that crew members have an adequate supply of oxygen when operating flights above this altitude, and provisions must be made for passengers as well.