Fire barriers precautions for fire prevention, Science

Assignment Help:

Fire Barriers : When a fire starts in a building it spreads quickly by:

a) Radiation - Intense heat radiates to neighbouring surfaces which are rapidly heated to ignition point. Materials themselves then ignite or when heated give off flammable gases and vapours.

b) Convection - Flames and hot gases rise by convection increasing the effects of radiation and burning the surfaces they touch. Thus ceilings quickly ignite and staircases and lift shafts often become quickest ways of spreading a fire.

The spread of fire can be limited by compartmentalization the interior of a building with fire barriers such as

1. fire doors

2. fire retardant walls

3. fire resistant floors

Fire doors are fitted with self -closing hinges and are always hung so as to open outwards towards the fire exit. They act in two additional ways in fire prevention

i) they restrict oxygen supply to the fire.

ii) they act as smoke barriers.

Fire doors should always be kept closed and should never be obstructed.


Related Discussions:- Fire barriers precautions for fire prevention

Objectives of identification of compressed gases , Objectives After doi...

Objectives After doing this exercise you should be able to: 1.  Identify the contents of the gas cylinder by observing the colour code, 2.  State the nature of the gas pr

Accidents and first aid, Accidents in laboratories, by and large, occur due...

Accidents in laboratories, by and large, occur due to unsafe work practice. The accidents may result in harm to someone and/or damage to equipment and premises. In this unit, we ha

Fine-grained black limestone, Give a rock name for sample. Note that the co...

Give a rock name for sample. Note that the colour of this type of rock varies greatly, depending on the abundance of organic matter and iron oxides. Samples are both carbonate rock

Importance of nutrition, Importance of nutrition: We cannot live withou...

Importance of nutrition: We cannot live without food. Our hunger can be satisfied by any kind of meal, but to  remain healthy and free of disease, our body requires certain kin

Define the sympathetic nervous system, Define the Sympathetic Nervous Syste...

Define the Sympathetic Nervous System The sympathetic component of the autonomic nervous system is concerned with in- creasing the level of arousal and energy expenditure - pri

Explain the histotoxic hypoxia, Explain the Histotoxic Hypoxia It is a ...

Explain the Histotoxic Hypoxia It is a type of hypoxia in which due to the action of a toxic agent oxidative enzymes are poisoned hence the tissue cells cannot utilize oxygen s

#titleChild Care Centers in Colorado, What are the ratios allowed for three...

What are the ratios allowed for three year olds and Child Care Centers in Colorado and what is the citation of the rules that addresses ratios?

Explain General Appearance of Urine, General appearance - General Examinati...

General appearance - General Examination of Urine Dilute urine is usually pale and straw-colored while the concentrated urine is dark and acid urine is darker. Blood may cause

Why are peaty and marshy soils highly acidic, Why are peaty and marshy soil...

Why are peaty and marshy soils highly acidic? The acidity is due to decomposition of organic matter under anaerobic conditions and formation of sulphuric acid.

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