Where foam extinguishing systems are provided on a ship，each machinery flat in the protected space must have a(n)（）.

A、A.coaming

B、B.alarm

C、C.drain

D、D.fire sensor

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更多“Where foam extinguishing systems are provided on a ship，each machinery flat in the protected space must have a(n)（）.”相关的问题

第1题

[单选题] What is an advantage of using foam in fire fighting?（）

A、It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F) B、Most foams can be used with dry chemicals to attack a fire by two methods C、Foam is effective on combustible metal fires D、Foam can be made with seawater or fresh water

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第2题

[单选题] Which statement about firefighting foam is TRUE?（）

A、Foam conducts electricity B、To be most effective，foam should be directed at the base of the fire C、Foam is most effective on burning liquids which are flowing D、Foam can ONLY be used to extinguish class A fires

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第3题

[单选题] 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

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第4题

[单选题] Production of mechanical foam by a portable in-line foam proportioner（）.

A、increases the size of foam bubbles formed B、increases the rate of foam production C、improves the extinguishing properties of foam D、gives the nozzleman more freedom of movement，since it can be placed anywhere in the hose line

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第5题

[] 泡沫细胞（foam cell）

A、泡沫细胞（foam cell）

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第6题

[单选题] （），as the chemical extinguisher agent，should be used for an electric fire.

A、dry chemical or foam B、foam or soda acid C、carbon dioxide or foam D、carbon dioxide or dry chemical

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第7题

[单选题] The type of extinguisher which should be used for an electricity fire is（）.

A、foam or soda acid B、dry chemical or foam C、carbon dioxide or dry chemical D、carbon dioxide or foam