71－72 第71题：

An inflatable liferaft equipped with a SOLAS B pack must be stowed ______.

A.so as to float free

B.with the vessel's emergency equipment

C.near the wheelhouse

D.as far forward as possible

A.SOLAS A pack

B.SOLAS B pack

C.coastal pack

D.small vessel pack

A．Cut the painter

B．Operate the radio equipment

C．Open the equipment pack

D．Ventilate the liferaft of CO 2

Which one is a rigid frame？

A、A

B、B

C、C

D、D

A. Open the liferaft casing

B. Turn the valve on the CO₂cylinder to start inflation

C. Make sure the operating cord is secured to the vessel before throwing it over the side

D. After inflation，detach operating cord from 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

A、If the rigid body is in translation, then ½vA½=½vB½ must be satisfied.

B、If ½vA½=½vB½ is satisfied, then the rigid body must be in translation.

C、If the rigid body is in translation, then ½vA½=½vB½ must be satisfied and the directions of the two velocities could be different.

D、If the rigid body is in translation, then the directions of vA and vB must be the same but probably |vA|¹|vB|.

A liferaft which has inflated bottom-up on the water ______.

A.should be righted by standing on the carbon dioxide cylinder，holding the righting straps and leaning backwards

B.should be righted by standing on the life line，holding the righting straps leaning backwards

C.will right itself when the canopy tube inflates

D.must be cleared of the buoyant equipment before it will right itself