Materials and Construction In cold working of metal as compared to its hot working 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 Yield stress, hardness and fatigue strength is not at all affected Ductility and impact strength improves Cracks and blow holes are eliminated ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Heavy duty bearings are usually made of Phosphorous bronze White metal Monel Zinc Phosphorous bronze White metal Monel Zinc ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following heat treatment processes is used for softening the hardened material? Normalising Tempering Annealing None of these Normalising Tempering Annealing None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Graphite is a good Thermal & electrical insulator Both B & C Conductor of electricity Conductor of heat Thermal & electrical insulator Both B & C Conductor of electricity Conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Lead pipe is Usually joined by burning (e.g. by melting to adjacent pieces with a torch) All of these Especially resistant to solutions containing H₂SO₄ Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain Usually joined by burning (e.g. by melting to adjacent pieces with a torch) All of these Especially resistant to solutions containing H₂SO₄ Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A chemical change takes place when iron Is heated Rusts Melts None of these Is heated Rusts Melts None of these ANSWER DOWNLOAD EXAMIANS APP
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