Materials and Construction In cold working of metal as compared to its hot working Appreciable strain hardening is produced Cracks and blow holes are eliminated Yield stress, hardness and fatigue strength is not at all affected Ductility and impact strength improves Appreciable strain hardening is produced Cracks and blow holes are eliminated Yield stress, hardness and fatigue strength is not at all affected Ductility and impact strength improves ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Karbate is A mixture of iron dust and saw dust An acid resistant material Carbon impregnated with resin (usually bakelite) Both B and C A mixture of iron dust and saw dust An acid resistant material Carbon impregnated with resin (usually bakelite) Both B and C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Nitriding of steel is done (in electric furnace) at __________ °C. 510 2210 910 1720 510 2210 910 1720 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction White cast iron is not Whitish in color Strong and hard Brittle Malleable Whitish in color Strong and hard Brittle Malleable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The range of Mho's scale of hardness is from 1 to 10 1 to 8 0 to 10 1 to 15 1 to 10 1 to 8 0 to 10 1 to 15 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction With increase in carbide/graphite ratio in cast iron, its Ductility decreases Hardness & brittleness increases Neither A nor B Both A & B Ductility decreases Hardness & brittleness increases Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
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