Materials and Construction High speed steel tools retain their hardness upto a temperature of __________ °C. 1100 750 500 900 1100 750 500 900 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 Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain Especially resistant to solutions containing H₂SO₄ Usually joined by burning (e.g. by melting to adjacent pieces with a torch) All of these Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain Especially resistant to solutions containing H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal used for making bearings should have Both B & C High-co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Low co-efficient of friction between journal and bearing Both B & C High-co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Low co-efficient of friction between journal and bearing ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Locomotive boiler tubes are made of __________ alloys. Magnesium Arsenic copper Nickel Aluminium Magnesium Arsenic copper Nickel Aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Purity of electrical grade aluminium should be ≥ __________ percent. 95 90 85 99.5 95 90 85 99.5 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The process of coating steel sheets by zinc to improve its corrosion resistance is called Galvanising Calorising Tempering Zincification Galvanising Calorising Tempering Zincification ANSWER DOWNLOAD EXAMIANS APP
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