Materials and Construction Alpha iron is stable __________ °C. Upto 910 Above 1403 Between 910 & 1403 Above 1800 Upto 910 Above 1403 Between 910 & 1403 Above 1800 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 Armature of small motors/generators High frequency transformers Generators and small motors Induction motors Armature of small motors/generators High frequency transformers ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Amount of energy that a material can absorb before its fracture is a measure of its Toughness Ductility Resilience Malleability Toughness Ductility Resilience Malleability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A bearing metal should not have Low thermal conductivity Enough plasticity High toughness Low co-efficient of friction Low thermal conductivity Enough plasticity High toughness Low co-efficient of friction ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Nickel and molybdenum are the basic constituents of Hastealloy Inconel German silver Solder Hastealloy Inconel German silver Solder ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower Abundant availability Thermal conductivity Price Corrosion resistance Abundant availability Thermal conductivity Price Corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
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