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GK QUESTION#2944

Consider the following statements about fluid friction (drag): I. Moving bodies passing through liquids or gases experience energy loss because of it. II. Designing objects with streamlined shapes can help in reducing its effect.

  1. AOnly I
  2. BOnly II
  3. CBoth I and IICorrect answer
  4. DNone of these
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Answer

C. Both I and II

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Explanation

Both statements are correct. Drag can dissipate mechanical energy as a body moves through a fluid. Suitable streamlining reduces pressure drag under the intended flow conditions.

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