Chemical Engineering Basics Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as Re0.8, Re-0.5 Re0.8, Re0.5 Re-0.8, Re0.5 Re0.5, Re0.8 Re0.8, Re-0.5 Re0.8, Re0.5 Re-0.8, Re0.5 Re0.5, Re0.8 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle. Heat rejection is lower Expansion & compression are isentropic Combustion is at constant volume Maximum temperature is higher Heat rejection is lower Expansion & compression are isentropic Combustion is at constant volume Maximum temperature is higher ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Which of the following metals is the most prone to work hardening? Brass Aluminium Copper Lead Brass Aluminium Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Materials having __________ lattice structure are usually the most ductile. Body centred cubic (bcc) Face centred cubic (fcc) None of these Hexagonal close packed (hcp) Body centred cubic (bcc) Face centred cubic (fcc) None of these Hexagonal close packed (hcp) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ? It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Scale formation rate on economiser tubes increases Economiser tube life increases due to handling of low temperature water It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Scale formation rate on economiser tubes increases Economiser tube life increases due to handling of low temperature water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Lime contains about 90% CaO. Percentage CaO present in limestone is about 70 50 25 80 70 50 25 80 ANSWER DOWNLOAD EXAMIANS APP
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