單項選擇題

Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.

A.Foam should not be used on electrical fires
B.One kilo of low expansion foam solution produces much more foam
C.Foam is only efficient when it covers the top of burning combustibles
D.A stream of foam should be deflected off the deck in order to best agitate the fire

你可能感興趣的試題

單項選擇題

Which of the following is not a maritime perils?（）.

A.Stranding or grounding
B.Striking upon rocks or shoals
C.Collision between ships
D.Fire

單項選擇題

Which is the proper method of determining whether a portable CO₂ fire extinguisher needs recharging?（）

A.Check the tag to see when the extinguisher was last charged
B.Release a small amount of CO₂; if the CO₂ discharges，the extinguisher is acceptable
C.Weigh the extinguisher and compare the weight against that stamped on the valve
D.Recharge the extinguisher at least once each year

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.

你可能感興趣的試題

Which of the following is not a maritime perils?（）.

Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?（）

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

Which is the proper method of determining whether a portable CO₂ fire extinguisher needs recharging?（）