Materials and Construction Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? Molybdenum steel Silicon steel None of these Chromium steel Molybdenum steel Silicon steel None of these Chromium steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ is a donor impurity for semi-conductors. None of these Antimony Gallium Boron None of these Antimony Gallium Boron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Rotary kilns in cement industry are lined with____bricks. Silica Lead Fireclay High alumina & high magnesia Silica Lead Fireclay High alumina & high magnesia ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal used for making bearings should have High-co-efficient of friction between journal and bearing Both B & C Low co-efficient of friction between journal and bearing Ability to retain lubricant on its surface High-co-efficient of friction between journal and bearing Both B & C Low co-efficient of friction between journal and bearing Ability to retain lubricant on its surface ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. Strain ageing Screw dislocation Solid solution hardening Twinning Strain ageing Screw dislocation Solid solution hardening Twinning ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction 'Hypersil' is a __________ steel. Tungsten Silicon Molybdenum High speed Tungsten Silicon Molybdenum High speed ANSWER DOWNLOAD EXAMIANS APP
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