Ntpc bhel sail ka fitter trade mein questions answer chaye

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• Arbind
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• America ki Kitni frequency Kaam M Li Jati Hai
• 1
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• The quick releasing taper angle is not less than......
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• किस गियर का प्रयोग दो समान्तर साफ्ट को जोड़ने में प्रयोग किया जाता है।
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