Chemical Engineering Basics Which of the following is not used as a fuel in rocket propellaht ? Liquid oxygen Liquid hydrogen Liquid hydrazine Kerosene oil Liquid oxygen Liquid hydrogen Liquid hydrazine Kerosene oil 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 Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is 3CaO . Al2O₃ 3CaO . SiO₂ 5CaO . 3 Al2O₃ 2CaO . SiO₂ 3CaO . Al2O₃ 3CaO . SiO₂ 5CaO . 3 Al2O₃ 2CaO . SiO₂ 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) 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Thermal efficiency of an internal combustion engine is around __________ percent. 8 80 65 35 8 80 65 35 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Copper is not present as an alloying constituent in Constantan Delta metal Nichrome Silicon bronze Constantan Delta metal Nichrome Silicon bronze ANSWER DOWNLOAD EXAMIANS APP
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