Materials and Construction Super conductors are those substances, which Conduct electricity at high temperature Offer no resistance to current flow Offer high resistance to current flow Conduct electricity at low temperature Conduct electricity at high temperature Offer no resistance to current flow Offer high resistance to current flow Conduct electricity at low temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Invar contains the highest percentage of Iron Cobalt Vanadium Tungsten Iron Cobalt Vanadium Tungsten ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the Ultimate tensile strength (U.T.S.) Endurance limit None of these Elastic limit Ultimate tensile strength (U.T.S.) Endurance limit None of these Elastic limit 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 fatigue resistance Used for making axle & shafts of aeroplanes, automobiles and locomotives Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor toughness Having poor fatigue resistance Used for making axle & shafts of aeroplanes, automobiles and locomotives Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor toughness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Tempering of steel is done to make it Hard Rollable Soft Brittle Hard Rollable Soft Brittle ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ does not contain tin as an alloying material. Brass Pewter Solder Babbit metal Brass Pewter Solder Babbit metal ANSWER DOWNLOAD EXAMIANS APP
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