Chemical Engineering Basics A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent. 200 150 400 300 200 150 400 300 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics 'Flare tower' used in industry is meant for Cooling of furnace exhaust gases Venting off (after burning) the excess inflammable/toxic gases at high pressure None of these Absorbing the pollutant gases from the furnace exhaust Cooling of furnace exhaust gases Venting off (after burning) the excess inflammable/toxic gases at high pressure None of these Absorbing the pollutant gases from the furnace exhaust 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 ? Economiser tube life increases due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The best criterion for analysing an economic investment is the Future value method Rate of return criterion Salvage value Present value method Future value method Rate of return criterion Salvage value Present value method ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics At the point of boundary layer separation in fluid flow, the Velocity gradient is flat Shear stress is zero Density variation is maximum Shear stress is maximum Velocity gradient is flat Shear stress is zero Density variation is maximum Shear stress is maximum ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Oxygen cylinders used for autogenous (cutting/welding) purposes are Welded steel cylinders Made by sand casting Seamless & made of steel Heat treated before use Welded steel cylinders Made by sand casting Seamless & made of steel Heat treated before use ANSWER DOWNLOAD EXAMIANS APP
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