During the morning checkout, which item verifies the condition of the cylinder valves?

During the morning checkout, which item verifies the condition of the cylinder valves?

• A. Remote gauge reads within 10% of cylinder gauge
• B. Cylinder valves function correctly
• C. Facepiece cleanliness
• D. Batteries in PASS

Answer: (B)

During the morning checkout, the essential thing to confirm about the cylinder is that its valve operates properly. You test by fully opening and closing the valve to ensure air flows freely when opened, stops cleanly when closed, and there are no leaks around the valve stem or packing. A valve that sticks, leaks, or fails to seal would compromise the air supply, so verifying smooth operation and proper sealing is the direct way to confirm the valve is in good condition. Other checks, like a remote gauge reading within 10% of the cylinder gauge, relate to gauge accuracy, not the valve’s mechanical function; facepiece cleanliness relates to the mask seal, and PASS battery status relates to the personal alert safety system.

During the morning checkout, the essential thing to confirm about the cylinder is that its valve operates properly. You test by fully opening and closing the valve to ensure air flows freely when opened, stops cleanly when closed, and there are no leaks around the valve stem or packing. A valve that sticks, leaks, or fails to seal would compromise the air supply, so verifying smooth operation and proper sealing is the direct way to confirm the valve is in good condition. Other checks, like a remote gauge reading within 10% of the cylinder gauge, relate to gauge accuracy, not the valve’s mechanical function; facepiece cleanliness relates to the mask seal, and PASS battery status relates to the personal alert safety system.