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【单选题】

As for a oil-fired boiler too much air would indicated by （）.

A、yellowish flame

B、golden yellow flame

C、milky flame

D、brilliant white flame

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更多“As for a oil-fired boiler too much air would indicated by （）.”相关的问题

第1题

[] As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （） (1) secure oil to fires (2) increase feed pump pressure As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （） (1) secure oil to fires (2) increase feed pump pressure

A、A.（1）  B、B.（1）and（2）  C、C.（2）  D、D.neither（1）nor（2）  

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第2题

[单选题] If in doubt as to the true water level when a boiler is being oil-fired, you should （）.

A、take no measures  B、extinguish the fire as soon as possible  C、feed water to the boiler  D、open the blow down valve  

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第3题

[单选题] CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.

A、common  B、oil  C、electrical  D、chemical  

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第4题

[单选题] Aqueous Film Forming Foam (AFFF), commonly known as ‘light water’, is especially suitable for fighting （）

A、oil fires in the engine room bilges  B、class B fires in paint lockers  C、any class D fire  D、all of the above  

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第5题

[单选题] Too much air in the furnace of an oil-fired boiler would be indicated by （）.

A、yellowish flame  B、golden yellow flame  C、white flame  D、brilliant white flame  

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第6题

[单选题] Which oil is not suitable for use as storm oil?（）

A、Fish oil  B、Vegetable oil  C、Mineral oil  D、Animal oil  

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第7题

[单选题] The fire of fuel oil is classified as（） fire.

A、Class A  B、Class B  C、Class C  D、Class D  

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第8题

[单选题] You should frequently compare drum-mounted and remote-reading water level indicators（） between these have contributed to failures because of overheating through shortage of water, when a boiler was being oil-fired.

A、descriptions  B、discrepancies  C、different  D、deflections  

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第9题

[单选题] Water can put out common fires, such as （）.

A、wood，paper  B、textile  C、A+B  D、oil  

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