Physics · Theory of Machines
निम्नलिखित में से किस उपकरण या प्रणाली में क्रैंक और लीवर तंत्र (crank and lever mechanism) का उपयोग होता है?
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- 1लोकोमोटिव की कपलिंग रॉड (Coupling rod of locomotive)
- 2बीम इंजन (Beam engine)✓
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सही उत्तर देखें
बीम इंजन (Beam engine)
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