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

Explain the bowman’s capsule - structures of a nephron, Explain the Bowman’...

Explain the Bowman’s capsule - Structures of a Nephron Bowman’s capsule: It contains the primary filtering device of the nephron, that is, glomerulus. It is a double-walled, cu

Erkinson develpomental theory, Maureen is a 50 year old married mother of t...

Maureen is a 50 year old married mother of three school age children. She works part-time at the local bank as a teller. She is going through menopause and is finding it very annoy

Explain the urea cycle, Explain the Urea Cycle ? From our discussion a...

Explain the Urea Cycle ? From our discussion above, it is clear that the amino group of all amino acids is ultimately converted to ammonia (NH3). Ammonia is highly toxic to th

Introduction to studies of fire safety measures , Introduction : Here you ...

Introduction : Here you have need to about the fire hazards, various causes of fires and the precautions to be taken to avoid them. You also learnt about various types of fire ext

Life science, b) discuss briefly the scientific and technical achievements ...

b) discuss briefly the scientific and technical achievements of the bronze age

Scientific activity, Describe the factors which decide the broad area of Sc...

Describe the factors which decide the broad area of Scientific activity?

Kepler''s laws of planetary motion, Kepler's  Laws of Planetary Motion: ...

Kepler's  Laws of Planetary Motion: Further support to the heliocentric model came from the work of Johannes Kepler at around the same time as Galileo's observations. Kepler, a

Forebrain , Forebrain: The largest part of  the brain that you  see in ...

Forebrain: The largest part of  the brain that you  see in Fig. is the cerebrum. It consists of  two halves or hemispheres  joined  together by  a band of  nerve fibres. Intere

Personal safeties, Safety aspects in a detailed way here explained the need...

Safety aspects in a detailed way here explained the need for a personal code of behaviour and then gave a list of instructions which could serve as code of practice in a laboratory

Decline of the bronze age civilisation, Decline of the Bronze Age Civilisat...

Decline of the Bronze Age Civilisation: We find that the great developments in production methods that came with the rise of early cities lasted only f6r a few centuries. The

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