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Oil fires are best extinguished by().
Foam extinguishes a fire mainly by().
Halon fire extinguishers are NOT effective when used on which types of fires?()
Which types of portable fire extinguishers are designed for use on electrical fires?()
Halon fire extinguishers are NOT effective when used on which types of fires?()
An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in().
An ABC dry chemical fire extinguisher would be least effective against a fire in().
Halon from extinguishers used on a class B fire,should be directed().
On a class “B” fire,which portable fire extinguisher would be the LEAST desirable?()
Dry chemical fire extinguishers are effective on which type(s) of fire?()
If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?()
Foam extinguishes a fire by().
Foam extinguishes a fire by().
Halon extinguishes a fire by().
Halon extinguishes fire primarily by().
After using a Halon extinguisher,it should be().
Portable foam type fire extinguishers are most effective on().
Removing which will extinguish a fire?().
Removing which will extinguish a fire?().
RULE III. EXTINGUISHING FIRE ON SHIPBOARD: Damage done to a ship and cargo, or either of them, by water or otherwise, including damage by beaching or scuttling a burning ship, in extinguishing a fire on board the ship, shall be made good as general average; except that no compensation shall be made for damage by smoke or heat however caused. 根据以上条款,不能列入共同海损的是()。
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