单选题Inflatable liferafts are provided with（）.A a Very pistolB a towing connectionC a portable radioD canned milk

In accordance with SOLAS，the batteries that power interior lighting in inflatable liferafts can be made to last longer by ______.

A.unscrewing the bulb during the daylight

B.switching the light on only when necessary

C.taking no action as there is no way on saving power

D.taking no action as they shut off automatically in daylight

Hand holds or straps on the underside of an inflatable liferaft are provided ______.

A.to right the raft if it capsizes

B.to carry the raft around on deck

C.for crewmen to hang on to

D.to hang the raft for drying

A safety feature provided on all inflatable liferafts is ______.

A.overhead safety straps

B.built in seats

C.internal releasing hooks

D.water stabilizing pockets

To determine the number of inflatable liferafts required on a vessel，you should check the ______.

A.Load Line Certificate

B.SOLAS Certificate

C.Stability Letter

D.Certificate of Inspection

In each inflatable rescue boat, what piece of equipment is provided to make quick, emergency, temporary repairs to a large hole in a raft?______.

A.No equipment is provided

B.Self-adhesive rubberized canvas patches

C.Glue and rubber patches.

D.Several various-sized sealing clamps

Where do you obtain approved placards containing instructions for the launching and inflation of an approved inflatable liferaft?

A.Officer in Charge，Marine Inspection

B.The manufacturer of the liferaft

C.Maritime Administration

D.The owner of the vessel on which the liferafts are carried