Materials and Construction Babbit metal used for making bearings should have 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 High-co-efficient of friction between journal and bearing Both B & C Low co-efficient of friction between journal and bearing ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction As the impurities are oxidised, the melting point of iron Increases Decreases May increase or decrease ; unpredictable Remains unchanged Increases Decreases May increase or decrease ; unpredictable Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Most of the common metals have __________ crystal structure. Hexagonal None of these Cubic Orthorhombic Hexagonal None of these Cubic Orthorhombic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The metals occuring at the lower most position in the electromotive series Do not resist corrosion Resist corrosion very strongly Are very brittle Are heat insulators Do not resist corrosion Resist corrosion very strongly Are very brittle Are heat insulators ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not an alloy of nickel and chromium? Inconel Hastealloy Nimonic alloys Duralumin Inconel Hastealloy Nimonic alloys Duralumin ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following commercial metals is most abundantly found in India? Zinc Nickel Aluminium Copper Zinc Nickel Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
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