लोकोमोटिव के हॉर्न को इतना powerfull क्यों बनाया जाता है?

#locomotive#indianrailway#knowledgeknorr
Doston es video me bataya gya hai ki locomotive me laga horn etna powerful kyo banaya jata hai janane k liye video ko pura dekhiye pasand aye to like kijiye share kijiye