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 Rubber lined vessels are corroded by the action of All of these Sulphuric acid (95%) Aqua regia Chloroform All of these Sulphuric acid (95%) Aqua regia Chloroform ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Post weld heat treatment is done by Tempering Normalising Stress relieving Solution annealing Tempering Normalising Stress relieving Solution annealing ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Graphite is corroded by Sulphuric acid (10%) Sea water None of these Hydrochloric acid Sulphuric acid (10%) Sea water None of these Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which metal is protected by the layer of its own oxide? Calcium Aluminium Iron Silver Calcium Aluminium Iron Silver ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Hardening of steel is not possible unless it is heated __________ critical point. Above the lowest Between the second & third Between the first & second Above the highest Above the lowest Between the second & third Between the first & second Above the highest ANSWER DOWNLOAD EXAMIANS APP
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