Chemical Engineering Basics Frost formation on the evaporator tubes in the domestic refrigerators Causes heat loss due to poor heat transfer Decreased compressor power Can be prevented by proper design Is immaterial Causes heat loss due to poor heat transfer Decreased compressor power Can be prevented by proper design Is immaterial ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Carbon is present in the form of __________ in grey cast iron. Nodular aggregates of graphite Cementite Spheroids Flakes Nodular aggregates of graphite Cementite Spheroids Flakes ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of 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) Low temperature encountered at high altitude Its low unit weight per ton of refrigeration ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Sub zero treatment of steel is done to Suppress martensite transformation Induce temper brittleness after its hardening Enhance its working performance in sub zero atmosphere Reduce the retained austenite in hardened steel Suppress martensite transformation Induce temper brittleness after its hardening Enhance its working performance in sub zero atmosphere Reduce the retained austenite in hardened steel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following : Rain of molten lead Blast of air Jet of water at high pressure Mixture of water and air Rain of molten lead Blast of air Jet of water at high pressure Mixture of water and air ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Filler material used in welding having the lowest melting point out of the following is Silver solder Soft solder Brazing spelter Aluminium Silver solder Soft solder Brazing spelter Aluminium ANSWER DOWNLOAD EXAMIANS APP
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