Extinguishing a Fire
Extinguishing a Fire
Fire can be controlled by removing any one or more of these conditions. A fire extinguisher cuts off the supply of air or brings down the temperature of the fuel or both and controls the fire.
Fire can be controlled and extinguished by :-
1. Removing any combustible materials near the region of fire.
2. Cutting off the supply of air by using sand or blanket.
3. Bringing down the ignition temperature by using water.
Fuel in most cases cannot be eliminated. If for instance, a building catches fire, then the whole building is the fuel.
Fire can be extinguished using water :-
Water evaporates, taking away heat from the fire, which in turn cools down the burning materials below its ignition temperature. However, water is dangerous in most of the cases:
Carbon dioxide fire extinguisher consist of carbon dioxide filled under high pressure in cylinders. It is not a supporter of combustion .Being heavier than air; carbon dioxide settles down and cut off the supply of oxygen which extinguishes the fire.
When released from cylinders, expands enormously in volume and cools down. So, it not only forms a blanket around the fire, it also brings down the temperature of the fuel.
Soda Acid Fire Extinguisher : It contain concentrated solution of sodium hydrogen carbonate and sulphuric acid and in separate compartments.
Water is not a suitable fire extinguisher to extinguish the fires involving oil and petrol because ______________.
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| Right Option : B | |||
| View Explanation | |||
In soda-acid fire extinguisher ________ helps in putting out the fire.
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| Right Option : B | |||
| View Explanation | |||
Water cannot be used as fire extinguisher to put out ______________________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
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Eshan Arora
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
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10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
