25 mm व्यास वाली एक ड्रिल बिट की कर्तन चाल 15.7 मीटर/मिनट है। ड्रिल की घूर्णन चाल क्या है?

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SSC JE Mechanical 05 Jun 2024 Shift 2 Official Paper - 1
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  1. 200 RPM
  2. 500 RPM
  3. 400 RPM
  4. 314 RPM

Answer (Detailed Solution Below)

Option 1 : 200 RPM
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Detailed Solution

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अवधारणा:

एक ड्रिल की घूर्णन चाल (RPM) की गणना निम्न सूत्र का उपयोग करके की जाती है:

\( N = \frac{1000 \times V}{π \times D} \)

जहाँ,

  • V = कर्तन चाल = 15.7 मीटर/मिनट
  • D = ड्रिल बिट का व्यास = 25 mm
  • π = 3.1416

गणना:

सूत्र में मान प्रतिस्थापित करने पर:

\( N = \frac{1000 \times 15.7}{π \times 25} = \frac{15700}{78.54} \approx 200~\text{RPM} \)

 

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