Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Low temperature encountered at high altitude Its low unit weight per ton of refrigeration Its high heat transfer rate Its higher co-efficient of performance (COP) Low temperature encountered at high altitude Its low unit weight per ton of refrigeration Its high heat transfer rate Its higher co-efficient of performance (COP) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following is not a characteristic observed in material failure by fatigue fracture ? Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur Initiation of crack from below the surface does not occur Initation of crack occurs on the surface of the machine part Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface Plastic deformation of material does not occur ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Milligram of KOH required to saponify 1 gm of oil is called its __________ number. Saponification Precipitation Emulsion Acid Saponification Precipitation Emulsion Acid ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Steel produced from phosphatic iron is __________ in nature. Tough Ductile Malleable Brittle Tough Ductile Malleable Brittle ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In the Bayer's process, bauxite is digested under pressure using NaOH H₂SO₄ HCl NH₃ NaOH H₂SO₄ HCl NH₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K) 1/T 1/T² T T² 1/T 1/T² T T² ANSWER DOWNLOAD EXAMIANS APP
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