Materials and Construction Specify the material of construction suitable for handling concentrated HNO₃ at 100°C. High silicon iron, Kel-F and teflon Tin and wood Stainless steel Silicone rubber High silicon iron, Kel-F and teflon Tin and wood Stainless steel Silicone rubber ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is a low melting point metal? Stainless steel Tin Copper Wrought iron Stainless steel Tin Copper Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Copper has very low Ductility Tensile strength Malleability Thermal & electrical conductivity Ductility Tensile strength Malleability Thermal & electrical conductivity 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 Armature of small motors/generators Induction motors Generators and small motors High frequency transformers Armature of small motors/generators Induction motors Generators and small motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Approximate value of the modulus of elasticity for steel is about __________ x l0⁶kg/cm². 75 2 40 0.5 75 2 40 0.5 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Reduction in the grain size reduces the __________ of the material. All of these Fatigue resistance Creep resistance Tensile strength All of these Fatigue resistance Creep resistance Tensile strength ANSWER DOWNLOAD EXAMIANS APP
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