Question

Hard water can be used:

• A. in boilers
• B. in textile industry
• C. in paper industry
• D. in drinking

Answer 1

Answer: (D)

in drinking

Hard water can be used for drinking.

Hard water is not always harmful for drinking purposes. However, it is disadvantageous in laundry work. Use of hard water in industrial boilers causes (a) scale formation (b) fuel wastage (c) boiler overheating (d) decrease in boiler efficiency (e) quick corrosion of boilers metal and (f) chances of the explosion.

Hence , option D is correct .