Materials and Construction Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its Corrosion resistance Machinability Compressive strength Tensile strength Corrosion resistance Machinability Compressive strength Tensile strength ANSWER DOWNLOAD EXAMIANS APP
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. None of these Concentrated H₂SO₄ Dilute HCI Acetic acid None of these Concentrated H₂SO₄ Dilute HCI Acetic acid 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%)? Generators and small motors Induction motors High frequency transformers Armature of small motors/generators Generators and small motors Induction motors High frequency transformers Armature of small motors/generators ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of Copper Stainles steel Aluminium High silicon (14%) iron Copper Stainles steel Aluminium High silicon (14%) iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following contains maximum percentage of carbon? Railway spring steel Rail steel Boiler plate steel Saws for cutting steel Railway spring steel Rail steel Boiler plate steel Saws for cutting steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction For platinum thermocouples, lead wires are made of Copper & copper-nickel alloys Copper & iron Tin & nickel Iron & nickel Copper & copper-nickel alloys Copper & iron Tin & nickel Iron & nickel ANSWER DOWNLOAD EXAMIANS APP
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