Basic knowledge on fire

Presented by: Shuva Chowdhury

Av¸‡bi msÁv/Av¸b Kx?

Av¸b/`nY GK ai‡bi ivmvqwbK

wewµqv ev wewµqvi †kªYxweb¨vm hvi

gva¨‡g Av‡jv Ges Zv‡ci m„wó nq|

myZivs hLb †Kvb ivmvqwbK wewµqvi

d‡j Zvc I Av‡jvi m„wó nq ZLb

Zv‡K Av¸b e‡j|

AwMœ cÖ¾¡jb bxwZ (Av¸b wKfv‡e m„wó nq) -

mvaviYZ wZbwU Dcv`vb Ges GKwU ivmvqwbK wewµqvi mgš^‡q

Av¸‡bi m„wó nq| h_v- (1) `vn¨ e¯‘ (2) Aw·‡Rb, (3) Zvc Ges

(4) ivmvqwbK wewµqvi Awew”Qbœ †hvMm~Î (unbroken chain

of reaction).hZ¶Y ch©š— GB wZbwU Dcv`vb I ivmvqwbK

wewµqv weivRgvb _vK‡e ZZ¶Y ch©š— Av¸b R¡j‡Z _vK‡e|

`n‡bi GB bxwZ‡K AwMœ cÖ¾¡jb bxwZ ejv nq| G‡K `n‡bi ev

AwMœ cÖ¾¡j‡bi PZzf©~RI ejv nq (quadrangle of fire).

Av¸‡bi PZzf©yR

Zvc

weiwZnxb wewµqv

`vn¨e¯‘ Aw·‡Rb

AwMœ wbe©vcb bxwZ (Av¸b wKfv‡e wb‡f)

(Principle of extinction)

Avgiv Rvwb †h, Av¸b jvMvi Rb¨

wZbwU Dcv`vb I GKwU wewµqvi

cÖ‡qvRb nq, myZivs †h †Kvb GKwU

Dcv`vb mwi‡q wb‡j ev wewµqvq euvavi

m„wó Ki‡j Av¸‡bi PZzf©~R †f‡½ hv‡e

Ges Av¸b wb‡f hv‡e| G‡KB ejv nq

AwMœ wbe©vcb bxwZ|

ab¨ev`