General Studies · Machining and Machine Tools
एल्युमिनियम वर्कपीस की रीमिंग (reaming) के लिए निम्नलिखित में से किस शीतलक (coolant) का उपयोग किया जाता है?
- 1केरोसिन (मिट्टी का तेल)✓
- 2लार्ड तेल
- 3पानी
- 4वायु दाब
सही उत्तर देखें
केरोसिन (मिट्टी का तेल)
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