Water Supply Engineering

Pick up the correct statement from the following:

  • A. Water with hardness up to 75 ppm is considered soft
  • B. Water with hardness more than 200 ppm is considered hard
  • C. Water needed for laundries should contain hardness less than 75 ppm
  • D. All the above
Answer: Option D.

No answer description available for this question.

Leave a Reply

Your email address will not be published.

Back to top button
error: Alert: Content is protected !!