The permissible limit of hardness of water fore low pressure boiler is _____________________?
Correct answer: C. 50 mg/litre
- A. 30 mg/litre
- B. 40 mg/litre
- C. 50 mg/litre
- D. 60 mg/litre
Explanation
For a low-pressure boiler, the commonly specified permissible hardness of feed water is about 50 mg/L, expressed as calcium carbonate. Higher hardness promotes scale formation on boiler heating surfaces.
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Practise Irrigation and Water Management
262 free Irrigation and Water Management MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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