Materials and Construction Glass lined vessels are not used for handling/storing Dilute HNO₃ Hydroflouric acid Dilute H₂SO₄ Dilute HCl Dilute HNO₃ Hydroflouric acid Dilute H₂SO₄ Dilute HCl ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Alpha iron is stable __________ °C. Upto 910 Above 1800 Between 910 & 1403 Above 1403 Upto 910 Above 1800 Between 910 & 1403 Above 1403 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction As the impurities are oxidised, the melting point of iron May increase or decrease ; unpredictable Decreases Increases Remains unchanged May increase or decrease ; unpredictable Decreases Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Acetylene gas holder is made of Copper Cast iron Monel metal Steel Copper Cast iron Monel metal Steel 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not an alloy of copper and tin? Gun metal Admiralty gun metal Bell metal Monel metal Gun metal Admiralty gun metal Bell metal Monel metal ANSWER DOWNLOAD EXAMIANS APP
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