Materials and Construction Molybdenum steels containing 0.15 to 0.40% molybdenum Are used for automobile parts like gears, axle, shaft, bearings etc Do not contain nickel or chromium or both Are prone to temper brittleness Have very poor fatigue resistance Are used for automobile parts like gears, axle, shaft, bearings etc Do not contain nickel or chromium or both Are prone to temper brittleness Have very poor fatigue resistance ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following finds the least commercial use? Low carbon steel High carbon steel Pure iron High silicon iron Low carbon steel High carbon steel Pure iron High silicon iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The damage/deterioration of metals by the __________ action of fluids is called 'erosion'. Corrosive Both A & B Neither A nor B Abrasive Corrosive Both A & B Neither A nor B Abrasive ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower Corrosion resistance Price Abundant availability Thermal conductivity Corrosion resistance Price Abundant availability Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Work hardening of a material Decreases its tensile strength Decreases its ductility Does not affect its ductility Increases its ductility Decreases its tensile strength Decreases its ductility Does not affect its ductility Increases its ductility ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of manganese in alloy steel improves its Abrasion resistance & toughness Elasticity & creep resistance Cutting ability Corrosion resistance Abrasion resistance & toughness Elasticity & creep resistance Cutting ability Corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
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