What type of oxygen supply is needed for each crew member above 13,000 feet ASL?

What type of oxygen supply is needed for each crew member above 13,000 feet ASL?

• A. Discrete oxygen systems
• B. 10% additional oxygen
• C. Oxygen at all times
• D. Emergency oxygen tanks only

Answer: (C)

The requirement for each crew member to have oxygen at all times above 13,000 feet Above Sea Level (ASL) is based on aviation regulations concerning cabin pressure and the physiological effects of high altitudes. At altitudes higher than 13,000 feet, the partial pressure of oxygen decreases, making it challenging for the human body to obtain adequate oxygen for normal physiological function. As a result, regulations typically mandate that all crew members must be equipped with supplemental oxygen systems to ensure they can maintain consciousness and performance levels. This ongoing supply of oxygen is crucial, especially when flying at altitudes where the risk of hypoxia—a condition caused by insufficient oxygen—is significantly elevated. The other options either do not meet regulatory guidelines or provide insufficient oxygen support. A discrete oxygen system might be appropriate in some contexts, but it doesn't ensure constant availability as required above this altitude. The mention of 10% additional oxygen is vague and fails to address the absolute need for continuous oxygen supply. Emergency oxygen tanks are meant for specific situations and cannot substitute for the necessity of regular oxygen supply during flight at these elevations.

The requirement for each crew member to have oxygen at all times above 13,000 feet Above Sea Level (ASL) is based on aviation regulations concerning cabin pressure and the physiological effects of high altitudes. At altitudes higher than 13,000 feet, the partial pressure of oxygen decreases, making it challenging for the human body to obtain adequate oxygen for normal physiological function.

As a result, regulations typically mandate that all crew members must be equipped with supplemental oxygen systems to ensure they can maintain consciousness and performance levels. This ongoing supply of oxygen is crucial, especially when flying at altitudes where the risk of hypoxia—a condition caused by insufficient oxygen—is significantly elevated.

The other options either do not meet regulatory guidelines or provide insufficient oxygen support. A discrete oxygen system might be appropriate in some contexts, but it doesn't ensure constant availability as required above this altitude. The mention of 10% additional oxygen is vague and fails to address the absolute need for continuous oxygen supply. Emergency oxygen tanks are meant for specific situations and cannot substitute for the necessity of regular oxygen supply during flight at these elevations.