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

First aid procedures, First Aid Procedures :   Your Counsellor will explain...

First Aid Procedures :   Your Counsellor will explain the first aid procedures through a demonstration session. Carefully observe ali the steps. Try to relate the contents of the f

Archaeological evidence, Archaeological Evidence: The study of human ...

Archaeological Evidence: The study of human antiquities, especially of prehistoric period is known as archaeology. The biological and cultural evolution of man proceeded side

First aid treatment of localized injuries, FIRST AID TREATMENT OF LOCALIZED...

FIRST AID TREATMENT OF LOCALIZED INJURIES : So far, we have seen main life-saving functions of first aid. Let us discuss the task of controlling some other injuries so that they d

Determine if pore diffusion mass transport may be limiting, Consider the fo...

Consider the following data for ethylene hydrogenation to ethane in a batch reactor:                  C 2 H 4 + H 2 → C 2 H 6 The reaction may be considered to be first-or

Objective of the occupational safety and health act 2005, QUESTION 1 (a...

QUESTION 1 (a) What is the main objective of the Occupational Safety and health Act 2005? (b) State 6 other objectives. Briefly describe them. QUESTION 2 (a) What cr

Research paper, how can the theoretical paradigms be used to describe famil...

how can the theoretical paradigms be used to describe family in Kyrgyzstan?

Explain increase in sound wave pressure through middle ear, Explain Increas...

Explain Increase in Sound Wave Pressure through Middle Ear There are certain factors which contribute to an approximately eighty-fold increase in sound wave pressure through mi

Coping stress, Ask question #Minimum 100 words acceptedYou are caring for a...

Ask question #Minimum 100 words acceptedYou are caring for a 29-year-old woman who is married with two small children, ages 1 and 3 years, at home. She is recuperating from a left

Fire hazards, Let us recall briefly what all we have learnt about fire haza...

Let us recall briefly what all we have learnt about fire hazards in this unit. Fire accident can happen due .to a number of reasons, like, flammable liquids, faulty electrical and

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