Materials and Construction A bearing metal should not have High toughness Low thermal conductivity Enough plasticity Low co-efficient of friction High toughness Low thermal conductivity Enough plasticity Low co-efficient of friction ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Slow and progressive deformation of a material with time under constant stress is called Creep Resilience Erosion None of these Creep Resilience Erosion None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cast iron vessels are not suitable for the storage of Freon H₂SO₄ (95%) at room temperature Wet SO₂ H₂SO₄ (fuming) Freon H₂SO₄ (95%) at room temperature Wet SO₂ H₂SO₄ (fuming) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not used as the ceramic material in 'cermets'? Oxides Nitrides Carbides Silicides Oxides Nitrides Carbides Silicides ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Duralumin is an alloy of Aluminium, copper and manganese Aluminium, nickel and silicon Aluminium and nickel None of these Aluminium, copper and manganese Aluminium, nickel and silicon Aluminium and nickel None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction High speed steel tools retain their hardness upto a temperature of __________ °C. 1100 500 900 750 1100 500 900 750 ANSWER DOWNLOAD EXAMIANS APP