Materials and Construction Containers made of high silicon cast iron (14% Si) are not suitable for the storage of Hydrochloric acid (concentrated) Benzoic & boric acids Phosphoric acid (95%) & sulphuric acid (95%) Acetic acid Hydrochloric acid (concentrated) Benzoic & boric acids Phosphoric acid (95%) & sulphuric acid (95%) Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one is remelted and poured into moulds to get cast iron? Low carbon steel Mild steel Pig iron Wrought iron Low carbon steel Mild steel Pig iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of manganese in alloy steel improves its Elasticity & creep resistance Abrasion resistance & toughness Cutting ability Corrosion resistance Elasticity & creep resistance Abrasion resistance & toughness Cutting ability Corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Molybdenum steels containing 0.15 to 0.40% molybdenum Are used for automobile parts like gears, axle, shaft, bearings etc Have very poor fatigue resistance Are prone to temper brittleness Do not contain nickel or chromium or both Are used for automobile parts like gears, axle, shaft, bearings etc Have very poor fatigue resistance Are prone to temper brittleness Do not contain nickel or chromium or both ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction When the steel is subjected to normalising, its __________ decreases. Ductility Yield point None of these Ultimate tensile strength (UTS) Ductility Yield point None of these Ultimate tensile strength (UTS) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. Having poor toughness Having poor fatigue resistance Not helpful in producing cleaner steel due to oxidising action of vanadium Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor toughness Having poor fatigue resistance Not helpful in producing cleaner steel due to oxidising action of vanadium Used for making axle & shafts of aeroplanes, automobiles and locomotives ANSWER DOWNLOAD EXAMIANS APP
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