Final answer:
The cabin pressure altitude that typically requires aircrew to use supplemental oxygen is 10,000 feet, as hypoxia risks increase due to lower atmospheric pressure and reduced available oxygen.
Step-by-step explanation:
The cabin pressure altitude that typically requires aircrew to use supplemental oxygen is 10,000 feet, as hypoxia risks increase due to lower atmospheric pressure and reduced available oxygen.The question “Aircrew will use supplemental oxygen any time the cabin pressure altitude exceeds ____.” pertains to the regulations for the use of supplemental oxygen by aircrew members at high altitudes where the air density and oxygen levels are insufficient to maintain adequate physiological function.
According to aviation safety norms, aircrew are typically required to use supplemental oxygen whenever the cabin pressure altitude exceeds 10,000 feet above sea level. Above 10,000 feet, hypoxia can become a risk because the atmospheric pressure is lower, which can lead to a reduction in the amount of oxygen available to the body.”