单选题On inflatable liferafts，the operating cord should be renewed by（）.A cutting the old line off and renewing sameB an approved servicing facility ashoreC opening the case and replacing the entire lineD one of the ship's officers

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

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

After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?

A.The relief valves in the system should be readjusted

B.The filters and strainers should be checked frequently

C.All system pressure should be readjusted

D.The system should be drained and renewed with a fluid of different operating characteristics

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

An inflatable life raft can be launched by ______.

A.the float-free method ONLY

B.breaking the weak link on the painter

C.throwing the entire container overboard and then pulling on the operating cord to inflate the raft

D.removing the securing straps

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