Materials and Construction Invar used in thermocouples is an alloy of nickel and Lead Copper Iron Chromium Lead Copper Iron Chromium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Polymorphism is not exhibited by Carbon Iron None of these Phosphorous Carbon Iron None of these Phosphorous ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction High speed steel should have high Toughness Both B & C Wear resistance Hardenability Toughness Both B & C Wear resistance Hardenability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction When the steel is subjected to normalising, its __________ decreases. None of these Ultimate tensile strength (UTS) Yield point Ductility None of these Ultimate tensile strength (UTS) Yield point Ductility ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is produced by condensation polymerisation? Polystyrene Polythene Poly vinyl chloride Bakelite Polystyrene Polythene Poly vinyl chloride Bakelite 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. 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 Having poor toughness Having poor fatigue resistance Not helpful in producing cleaner steel due to oxidising action of vanadium ANSWER DOWNLOAD EXAMIANS APP
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