The rated operating time of a self-contained breathing device may be reduced in actual use because of（）.

Shipboard Oil Pollution Emergency Plans must be reviewed（）.

On offshore drilling units，emergency lighting and each emergency power system must be tested at least once a（）.

Overhauling a fire in the living quarters on a vessel must include（）.

Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency. Drills include all of the following，EXCEPT（）.

If an emergency pump control is used as the emergency shutdown on a tank vessel，it must（）.

The Emergency Position Indicating Radio beacon on a cargo vessel must be stowed（）.

The signal for a fire emergency on an OSV is（）.

In each inflatable liferaft，what equipment is provided to make quick，emergency，temporary repairs to large holes in the raft? （）

The color of the signal flare sent up by a submarine about to surface due to an emergency condition within the submarine is（）.