The permissible limit of hardness of water fore low pressure boiler is _____________________?
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.
A. 30 mg/litre
B. 40 mg/litre
D. 60 mg/litre
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.