When a survival craft drill is held,the person in charge must insure that().
()of the following statements is INCORRECT regarding a fire and boat drill on board your cargo vessel.
At each drill a different person should be in ()(负责)of an extinguisher.
During the required periodic abandon ship drill aboard a ship,each person not assigned duties in the muster list is().
Each fire drill shall not include().
The essence of an abandon ship drill is that the survival crafts are manned and operated by the crew members assigned to them on the()
In the voyage, when carrying out abandon ship drill, should be test every time().
When the PSCO would like to witness a fire drill carried out by the crew, he should consult ()to locate a simulated fire.
The essence of an abandon ship drill is that the survival crafts are manned and operated by the crew members assigned to them on the()
A heavy,thick-walled tube,usually steel,used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a().