Materials and Construction Fatigue failure of a material may occur, when it is subjected to __________ stress. Torsion Fluctuating Tensile Compressive Torsion Fluctuating Tensile Compressive ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following exercises most powerful influence on the mechanical properties of steel? Silicon Carbon Phosphorous Manganese Silicon Carbon Phosphorous Manganese ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main purpose of galvanising iron sheets is to Harden the surface Increase its glossiness and lustre Prevent the action of oxygen Prevent the action of water Harden the surface Increase its glossiness and lustre Prevent the action of oxygen Prevent the action of water 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 High frequency transformers Armature of small motors/generators Induction motors Generators and small motors High frequency transformers Armature of small motors/generators Induction motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The hardest material just prior to diamond in Mhos scale is Topax Carborundum Corrundum Calcite Topax Carborundum Corrundum Calcite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Very high sulphur in pig iron makes Its casting unsound All of these Its brittle and malleable Its hard and machinable Its casting unsound All of these Its brittle and malleable Its hard and machinable ANSWER DOWNLOAD EXAMIANS APP
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