單項選擇題

Puncture leaks in the lower tubes or bottom of an inflatable liferaft should FIRST be stopped by using（）.

A.sealing clamps
B.repair tape
C.a tube patch
D.sail twine and vulcanizing kit

你可能感興趣的試題

單項選擇題

Point out which one of the following items is not in the charge of Chief Officer in repairing operation（）.

A.hull cleaning
B.derusting and painting
C.the maintenance of boiler
D.docking and undocking

單項選擇題

Please have the damage to the gangway（）.

A.repair
B.to repair
C.repairing
D.repaired