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 Not helpful in producing cleaner steel due to oxidising action of vanadium Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor fatigue resistance Having poor toughness Not helpful in producing cleaner steel due to oxidising action of vanadium Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor fatigue resistance ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Alpha iron is stable __________ °C. Upto 910 Above 1403 Above 1800 Between 910 & 1403 Upto 910 Above 1403 Above 1800 Between 910 & 1403 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which has the maximum melting point out of the following? Wrought iron Steel Cast iron Stainless steel Wrought iron Steel Cast iron Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The purpose of nitriding the steel is to None of these Harden its surface Soften its surface Improve its reliability None of these Harden its surface Soften its surface Improve its reliability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Carbon is present in steel wholly in the Both A & B Neither A nor B Combined form Free state as graphite Both A & B Neither A nor B Combined form Free state as graphite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is used for examining the macro-structure of a material. Optical microscope Metallurgical microscope X-rays Visual inspection by naked eye Optical microscope Metallurgical microscope X-rays Visual inspection by naked eye ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS