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 Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor toughness Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor fatigue resistance Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor toughness Used for making axle & shafts of aeroplanes, automobiles and locomotives ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Carbon content in plain carbon steel is __________ percent. 0.65 to 0.80 0.35 to 0.45 0.85 to 1.2 0.1 to 0.15 0.65 to 0.80 0.35 to 0.45 0.85 to 1.2 0.1 to 0.15 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one occupies the lowermost position in the electromotive series of metals? Aluminium Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Zinc Aluminium Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Zinc ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following finds the least commercial use? Low carbon steel High carbon steel High silicon iron Pure iron Low carbon steel High carbon steel High silicon iron Pure iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal used for making bearings should have Both B & C High-co-efficient of friction between journal and bearing Low co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Both B & C High-co-efficient of friction between journal and bearing Low co-efficient of friction between journal and bearing Ability to retain lubricant on its surface ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Specify the material of construction suitable for handling concentrated HNO₃ at 100°C. Tin and wood High silicon iron, Kel-F and teflon Silicone rubber Stainless steel Tin and wood High silicon iron, Kel-F and teflon Silicone rubber Stainless steel ANSWER DOWNLOAD EXAMIANS APP
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