Materials and Construction Light weight metallic alloy used in aircraft industry is Phosphor bronze Duralumin Aluminium High silicon (14%) iron Phosphor bronze Duralumin Aluminium High silicon (14%) iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called Hooke's effect Bauschinger effect Relaxation Hysterisis Hooke's effect Bauschinger effect Relaxation Hysterisis ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The damage/deterioration of metals by the __________ action of fluids is called 'erosion'. Neither A nor B Both A & B Corrosive Abrasive Neither A nor B Both A & B Corrosive Abrasive ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Molybdenum steels containing 0.15 to 0.40% molybdenum 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 Are used for automobile parts like gears, axle, shaft, bearings etc ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is a donor impurity for semi-conductors. Gallium None of these Boron Antimony Gallium None of these Boron Antimony ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability? Copper Aluminium Lead Wrought iron Copper Aluminium Lead Wrought iron ANSWER DOWNLOAD EXAMIANS APP
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