A. put back in service if some CO2 remains B. hydrostatically tested

C. retagged D. recharged

81. [5803]A ROUND THROUGH THE VESSEL CARRIED OUT BY A CREW MEMBER OF THE WATCH

AT CERTAIN INTERVALS SO THAT AN OUTBREAK OF FIRE MAY BE PROMPTLY DETECTED

defines ______.

A. Fire patrol

B. Fire control

C. Smoke detection

D. Fire drill

82. 82. What is the meaning of UEL?

A. Upper exposure level

B. Upper explosion level

C. Upper explosive level

D. Upper evaporation level

83. [4379]Puncture leaks in the lower tubes or bottom of an inflatable liferaft

should FIRST be stopped by using ______.

A. sealing clamps夹封

B. repair tape

C. a tube patch

D. sail twine and vulcanizing kit

84[5865]If help has not arrived in 10-12 hours after you abandon a vessel in a

survival craft，you should ______.

A. go in one direction until the fuel runs out

B. plot a course for the nearest land

C. take a vote on which direction you should go