What type of object can be used to manually access the oxygen mask compartment in a PSU?

What type of object can be used to manually access the oxygen mask compartment in a PSU?

• A. A screwdriver
• B. A sharp thin object like a paperclip, pin, or ballpoint pen
• C. A coin
• D. Your fingernail

Answer: (B)

Manually releasing the oxygen mask compartment relies on a small, recessed mechanism that must be actuated with something thin enough to reach into a tight opening. A sharp thin object—like a paperclip, pin, or the tip of a ballpoint pen—can reach and depress that tiny release without risking damage to the panel or the mechanism. Other items, such as a screwdriver, are too thick and could slip or harm the equipment; a coin is typically too large to fit; a fingernail isn’t reliable or strong enough to operate the latch. So the best choice is a sharp, slender tool that can access and engage the manual release.

Manually releasing the oxygen mask compartment relies on a small, recessed mechanism that must be actuated with something thin enough to reach into a tight opening. A sharp thin object—like a paperclip, pin, or the tip of a ballpoint pen—can reach and depress that tiny release without risking damage to the panel or the mechanism. Other items, such as a screwdriver, are too thick and could slip or harm the equipment; a coin is typically too large to fit; a fingernail isn’t reliable or strong enough to operate the latch. So the best choice is a sharp, slender tool that can access and engage the manual release.