Question 22General Subjects - 1st Asst/Chief

The correct answer is D) All of the above. When performing routine maintenance on the bilge manifold valves, it is important to thoroughly inspect and service the various components of the valve. This includes checking the valve disks and seats, renewing the bonnet flange gaskets if they are cut or torn, and renewing the stem packing if it has hardened. Performing these checks and replacements ensures the proper functioning and sealing of the valve, which is critical for the safe operation of the bilge system. The other options, A, B, and C, are all correct individual components that should be inspected and serviced, but the complete answer is D, as all of these checks and replacements should be performed as part of the routine maintenance.