Materials and Construction Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with Acidic refractory Rubber Lead or acid-proof bricks Karbate Acidic refractory Rubber Lead or acid-proof bricks Karbate ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Specify the material of construction suitable for handling concentrated HNO₃ at 100°C. Stainless steel Silicone rubber High silicon iron, Kel-F and teflon Tin and wood Stainless steel Silicone rubber High silicon iron, Kel-F and teflon Tin and wood ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Lead lined equipments & vessels are suitable for handling Hydrochloric acid (10%) All of these Sulphuric acid upto 60°C Nitric acid Hydrochloric acid (10%) All of these Sulphuric acid upto 60°C Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal used for making bearings should have High-co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Both B & C Low co-efficient of friction between journal and bearing High-co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Both B & C Low co-efficient of friction between journal and bearing ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Purity of electrical grade aluminium should be ≥ __________ percent. 99.5 95 85 90 99.5 95 85 90 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The damage/deterioration of metals by the __________ action of fluids is called 'erosion'. Abrasive Corrosive Neither A nor B Both A & B Abrasive Corrosive Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
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