Chemical Engineering Basics Sub zero treatment of steel is done to Suppress martensite transformation Induce temper brittleness after its hardening Reduce the retained austenite in hardened steel Enhance its working performance in sub zero atmosphere Suppress martensite transformation Induce temper brittleness after its hardening Reduce the retained austenite in hardened steel Enhance its working performance in sub zero atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics With increase in steam pressure, its specific volume decreases Linearly Slowly first and then rapidly Rapidly first and then slowly Exponentially Linearly Slowly first and then rapidly Rapidly first and then slowly Exponentially ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following are made out of the carbon steel having carbon content of 0.9 to 1% ? Mandrels, twist drills, small lathe tools and razors Forgings like can shaft, structural steel plate, threading dies and drawing dies Small punches, broaches reamers and springs Cutlery, screws, rivets and files Mandrels, twist drills, small lathe tools and razors Forgings like can shaft, structural steel plate, threading dies and drawing dies Small punches, broaches reamers and springs Cutlery, screws, rivets and files ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ forces do not act in case of fluids. Centrifugal Elastic Vibratory Tensile Centrifugal Elastic Vibratory Tensile ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C. 2000 3000 2400 1800 2000 3000 2400 1800 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) 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 ANSWER DOWNLOAD EXAMIANS APP
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