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）

查看正确答案

更多“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”相关的问题

第1题

[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

点击查看答案

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

点击查看答案

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

点击查看答案

第4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

点击查看答案

第5题

[单选题] An example of class "A" fire is a/an （）.

A、electrical fire in the engine room B、oil fire in the engine room bilges C、oil fire involving a grade "A" petroleum product D、mattress fire in a stateroom

点击查看答案

第6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

点击查看答案

第7题

[单选题] An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in（）.

A、a mattress B、spilled liquids such as oil or paint C、high voltage electrical gear D、a trash can

点击查看答案

第8题

[单选题] An ABC dry chemical fire extinguisher would be LEAST effective against a fire in（）.

A、a mattress B、spilled liquids such as oil or paint C、high voltage electrical gear D、a trash can