Process Equipment and Plant Design In a cylinderical vessel subjected to internal pressure, the longitudinal stress σL and the circumferential stress, σh are related by σh = 2 σL σh = σL/2 No relation exists σh = σL σh = 2 σL σh = σL/2 No relation exists σh = σL ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter. 0.5 to 0.6 0.1 to 0.25 0.3 to 0.5 0.65 to 0.80 0.5 to 0.6 0.1 to 0.25 0.3 to 0.5 0.65 to 0.80 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Both B & C Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Is economical in operation Employs high velocity, high heat transfer rate and less heating surface requirement Both B & C Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Is economical in operation Employs high velocity, high heat transfer rate and less heating surface requirement ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate. 1/2 8 2 4 1/2 8 2 4 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Cooling water fouling factors vary in the range of 0.001 to 0.003 (kcal/hr. m. °C)⁻¹ (W/m².°K)⁻¹ (kcal/hr.m² .°C)⁻¹ (BTU/hr.ft² . °F)⁻¹ (kcal/hr. m. °C)⁻¹ (W/m².°K)⁻¹ (kcal/hr.m² .°C)⁻¹ (BTU/hr.ft² . °F)⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is > 10 < 10 30 > 20 > 10 < 10 30 > 20 ANSWER DOWNLOAD EXAMIANS APP
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