Materials and Construction Alpha iron is stable __________ °C. Upto 910 Between 910 & 1403 Above 1800 Above 1403 Upto 910 Between 910 & 1403 Above 1800 Above 1403 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Thermoplastic resins are those polymers, which Easily deform under pressure at high temperature Can not be moulded None of these Has decreased plasticity at increasing temperature Easily deform under pressure at high temperature Can not be moulded None of these Has decreased plasticity at increasing temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Plasticisers are added to polymers to improve their Alkali resistance Softness & flexibility Acid resistance Tensile strength Alkali resistance Softness & flexibility Acid resistance Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A steel alloy containing 36% nickel is called __________ , which has a zero co- efficient of expansion. High speed steel Austenitic stainless steel Heat resisting steel Invar High speed steel Austenitic stainless steel Heat resisting steel Invar ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main constituent of carborundum is __________ carbide. Silicon Boron Calcium Aluminium Silicon Boron Calcium Aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Super conductors are those substances, which Conduct electricity at high temperature Offer high resistance to current flow Conduct electricity at low temperature Offer no resistance to current flow Conduct electricity at high temperature Offer high resistance to current flow Conduct electricity at low temperature Offer no resistance to current flow ANSWER DOWNLOAD EXAMIANS APP
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