Materials and Construction __________ is a donor impurity for semi-conductors. None of these Antimony Boron Gallium None of these Antimony Boron Gallium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is added in low carbon steel to raise its yield point. Sulphur Phosphorous Silicon Manganese Sulphur Phosphorous Silicon Manganese ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Polythene (low or high density) containers are not corroded by Any of these Nitric acid (95%) at room temperature Sulphuric acid (10%) at room temperature Sulphur trioxide at 60°C Any of these Nitric acid (95%) at room temperature Sulphuric acid (10%) at room temperature Sulphur trioxide at 60°C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Perspex is nothing but An alloy of lead and tin Acrylic sheet An elastomer Aluminium foil clad with bakelite An alloy of lead and tin Acrylic sheet An elastomer Aluminium foil clad with bakelite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction With increase in carbide/graphite ratio in cast iron, its Both A & B Hardness & brittleness increases Neither A nor B Ductility decreases Both A & B Hardness & brittleness increases Neither A nor B Ductility decreases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is used for examining the macro-structure of a material. X-rays Optical microscope Visual inspection by naked eye Metallurgical microscope X-rays Optical microscope Visual inspection by naked eye Metallurgical microscope ANSWER DOWNLOAD EXAMIANS APP
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