Materials and Construction Ceramic materials Never exhibit polymorphism Are poor electrical conductors due to lack of free electrons Are exemplified by clay and mica All of these Never exhibit polymorphism Are poor electrical conductors due to lack of free electrons Are exemplified by clay and mica All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In cold working of metal as compared to its hot working Yield stress, hardness and fatigue strength is not at all affected Ductility and impact strength improves Cracks and blow holes are eliminated Appreciable strain hardening is produced Yield stress, hardness and fatigue strength is not at all affected Ductility and impact strength improves Cracks and blow holes are eliminated Appreciable strain hardening is produced ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following has the poorest wel-dability? High-carbon steel Wrought iron Low carbon steel Mild steel High-carbon steel Wrought iron Low carbon steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following metals in not used for coating of the base metal to guard it against corrosion? Magnesium Cadmium Aluminium Lead Magnesium Cadmium Aluminium Lead ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cementite is All of these Characterised by an orthorhombic crystal structure A compound of carbon and iron Fe₃C chemically All of these Characterised by an orthorhombic crystal structure A compound of carbon and iron Fe₃C chemically ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction For spinning viscose rayon, the extrusion spinnerettes are made of Aluminium High carbon steel Nickel Platinum or gold alloys Aluminium High carbon steel Nickel Platinum or gold alloys ANSWER DOWNLOAD EXAMIANS APP
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