Chemical Engineering Basics Sub zero treatment of steel is done to Suppress martensite transformation Reduce the retained austenite in hardened steel Induce temper brittleness after its hardening Enhance its working performance in sub zero atmosphere Suppress martensite transformation Reduce the retained austenite in hardened steel Induce temper brittleness after its hardening Enhance its working performance in sub zero atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating. Austenite Martensite Cementite Pearlite Austenite Martensite Cementite Pearlite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air refrigeration cycle is used in the air crafts, because of Its higher co-efficient of performance (COP) Its low unit weight per ton of refrigeration Low temperature encountered at high altitude Its high heat transfer rate Its higher co-efficient of performance (COP) Its low unit weight per ton of refrigeration Low temperature encountered at high altitude Its high heat transfer rate 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 : Mixture of water and air Rain of molten lead Jet of water at high pressure Blast of air Mixture of water and air Rain of molten lead Jet of water at high pressure Blast of air ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Presence of small quantity of sulphur in low carbon steel improves its Hardenarality Weldability Machinability Formability Hardenarality Weldability Machinability Formability ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air standard Otto cycle is more efficient than the diesel cycle for the same Cylinder dimension & rpm Heat addition & pressure Compression ratio & pressure Heat addition & compression ratio Cylinder dimension & rpm Heat addition & pressure Compression ratio & pressure Heat addition & compression ratio ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS