Ball Bearings | MCQs

    Q1: Ball bearings are used to reduce friction by:

    بال بیرنگ کی طرف سے رگڑ کو کم کرنے کے لئے استعمال کیا جاتا ہے
    • A. Increasing the area of contact with the use of metallic balls
    • B. Reducing the area of the contact with the use of metallic balls
    • C. None of these
    • D. Applying lubricant in the balls used
✅ Correct: 0 | ❌ Wrong: 0 | 📊 Total Attempted: 0
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