Small quantities of flammable liquids needed at a work site should be（）.

The discharge from a carbon dioxide fire extinguisher should be directed（）.

One advantage of the all-purpose nozzle is that it（）.

The atmosphere in a tank is too lean if it is（）.

Overhauling a fire in the living quarters on a vessel must include（）.

On a ship，a fire drill shall be conducted once every（）.

One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that（）.

Shipping society approved buoyant work vests are considered to be items of safety equipment and may be worn by members of the crew（）.

The BEST method of applying foam to a fire is to（）.

The discharge side of every fire pump must be equipped with a（）.