TGPSC HMWSSB Manager 2015 Paper 2 · Question 81

Question 81 of the TSPSC Manager (Engineering), HMWSSB, 2015: Paper 2 (Civil Engineering) (1 November 2015). Try it first, then open the answer and explanation.

1. Manager 2015 Paper 2 (Civil) · Q81 · Environmental Engineering · Water Supply

   If total hardness of water is less than its total alkalinity the non-carbonate hardness will be equal to

   1. Total alkalinity
   2. Total hardness
   3. Total alkalinity - total hardness
   4. Zero
   Show answer

   Answer: (4) Zero

   When total hardness ≤ total alkalinity, all the hardness is carbonate hardness (carbonate hardness = total hardness), so non-carbonate hardness is zero; the extra alkalinity is due to sodium/potassium salts.

Answer it in the practice appMake a topic-wise quiz