Foam extinguishers, Science

Assignment Help:

Foam extinguishers :  If the burning liquid is in a container the jet should be directed at the inside edge of the vessel or at a vertical surface in order to break the jet and allow the foam to build up and spread across the surface of the liquid (Figure). If this is not possible, the correct procedure is to stand well back (perhaps as far as 6 or 7 m) and to direct the jet with a gentle sweeping movement to allow the foam to drop down and form a layer on the surface of the liquid (Figure). Do not aim the jet directly into the liquid as this will drive the foam under the surface where it will be ineffective in extinguishing the fire and may spread the fire by splashing the liquid on the surroundings.

923_Use of foam extinguisher-I.png

Figure: Use of foam extinguisher-I. Fig.12.4: Use of foam extinguisher-11.


Related Discussions:- Foam extinguishers

Discuss handling of subpoena by mrd, Question 1 What is Quality assuran...

Question 1 What is Quality assurance? Explain JCAH Quality Assurance programme activities 2 Briefly discuss the AHIMA standards criteria to keep legally sound records. 3 Explai

Discovery of microbes, Discovery of Microbes The discovery of microbe...

Discovery of Microbes The discovery of microbes and the fact that they cause infectious diseases is one of the greatadvances in science, which has helped  us in understanding

Matter, what is meaning of solid'' liguid'' gases?why eresers float in wate...

what is meaning of solid'' liguid'' gases?why eresers float in water?why deos paper sink in water?

Explain the sensory and the motor neurons, Explain the Sensory and  the Mo...

Explain the Sensory and  the Motor Neurons The peripheral nervous system consists of 1. Sensory neurons running from stimulus receptors that inform the central nervous syste

Longest duration of insolation, Which latitudes and dates would coincide wi...

Which latitudes and dates would coincide with the longest duration of insolation: 50oNorth on June 21

Soundwaves.., Temperature affects the _____ of sound waves !?

Temperature affects the _____ of sound waves !?

Define the nature of sound, Define the Nature of Sound This section is ...

Define the Nature of Sound This section is a recapitulation of what you have learnt in school. You would recall that sound waves consist of the longitudinal waves of alternate

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd