Alum increases Environmental Engineering Mcqs August 3, 2019 BILAL KHATTAK0 A.Hardness of water B.Carbonates of water C.Sulphates in water D.Acidity of water E.None of the above Related Mcqs: Addition to alum increases Temporary hardness in water in caused by salts like Silicon when added to copper increases its Addition of nickel to cast iron increases Identify the incorrect statement if any Identify the incorrect statement if any Zeolite process is suitable for In plain carbon steel as the percentage of carbon increases from 0.2% to 0.8% which of the following decreases? Induction hardening of components in done The ability of a tool to resist softening at high temperatures is known as The sulphate rocks are formed in ocean by leaching of: