Materials and Construction Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2. Acetic acid None of these Dilute HCI Concentrated H₂SO₄ Acetic acid None of these Dilute HCI Concentrated H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Tempering of steel is done to make it Rollable Brittle Soft Hard Rollable Brittle Soft Hard ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Mild steel storage vessels are suitable for the storage of Hydrochloric acid (95%) Anhydrous ammonia Sulphuric acid (25%) Fatty acids Hydrochloric acid (95%) Anhydrous ammonia Sulphuric acid (25%) Fatty acids ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A bearing metal should not have Enough plasticity High toughness Low thermal conductivity Low co-efficient of friction Enough plasticity High toughness Low thermal conductivity Low co-efficient of friction ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? High frequency transformers Induction motors Generators and small motors Armature of small motors/generators High frequency transformers Induction motors Generators and small motors Armature of small motors/generators ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is added in stainless steel to prevent inter crystal corrosion. Vanadium Niobium Nickel Chromium Vanadium Niobium Nickel Chromium ANSWER DOWNLOAD EXAMIANS APP
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