Materials and Construction A measure of toughness of a material is its Percentage elongation Ultimate strength Area under stress-strain diagram Yield strength Percentage elongation Ultimate strength Area under stress-strain diagram Yield strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silicon percentage in iron castings to have maximum hardness should be about 0.5 0.8 2.5 0.3 0.5 0.8 2.5 0.3 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hardening of steel is not possible unless it is heated __________ critical point. Above the lowest Between the second & third Between the first & second Above the highest Above the lowest Between the second & third Between the first & second Above the highest 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%)? 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 High frequency transformers ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Corrosion resistance of steel is increased by the addition of Lead and vanadium Molybdenum and tungsten Nickel and chromium Phosphorous and tungsten Lead and vanadium Molybdenum and tungsten Nickel and chromium Phosphorous and tungsten ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Visco-elastic behaviour of materials which is time dependent is common in Non-crystalline solids Non-crystalline organic polymer Crystalline solid Plastics Non-crystalline solids Non-crystalline organic polymer Crystalline solid Plastics ANSWER DOWNLOAD EXAMIANS APP
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