White damp (Carbon monoxide)- properties & Physiological effect

[@vamshinayakofficial1713]

So informative video ❤tnq so much sir 🎉

[@arunkumar-sm7rk]

🙏🙏

[@Anuragadventure12345]

🙏🙏🙏

[@pradeepdubey4420]

Sir if inadequate ventilation causes sp.heating then why seams of o/c mines caught fire as there is no problem of ventilation

[@gunvantbele-miningclasses]

Cracks in pillar there may not be adequate ventilation inside the pillar Huge fallen coal inside the heap problem of air entering

[@shortbb7700]

Sir threshold limited kya hota hai

[@gunvantbele-miningclasses]

just permissible limit beyond this dangerous