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Mr. Dubey • 100.64K Points
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Q. In transportation of concrete by pumps

  • (A) the slump should not be less than 50 mm and more than 80 mm
  • (B) the water cement ratio should remain between 0.5 to 0.65
  • (C) the number of bends in a pipe line should be as small as possible
  • (D) all of the above
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