Chemical Engineering Basics Oxygen cylinders used for autogenous (cutting/welding) purposes are Heat treated before use 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Chlorine acts as a bleaching agent only in the presence of Dry air Moisture Sunlight Pure oxygen Dry air Moisture Sunlight Pure oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics __________ of air does not increase with increase in temperature. Thermal diffusivity Viscosity Density Thermal conductivity Thermal diffusivity Viscosity Density Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Air standard Otto cycle is more efficient than the diesel cycle for the same Heat addition & compression ratio Compression ratio & pressure Heat addition & pressure Cylinder dimension & rpm Heat addition & compression ratio Compression ratio & pressure Heat addition & pressure Cylinder dimension & rpm 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 Which of the following welding processes employs the highest welding temperature ? Thermit welding Gas welding Arc welding Resistance welding Thermit welding Gas welding Arc welding Resistance welding ANSWER DOWNLOAD EXAMIANS APP
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