Process Equipment and Plant Design Which of the following packing materials provides for maximum mass transfer? Lessig rings All of these Cross-partition rings Raschig rings Lessig rings All of these Cross-partition rings Raschig rings ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Thin spherical shells subjected to internal pressure, develop __________ stresses. Neither A nor B Circumferential Both A & B Radial Neither A nor B Circumferential Both A & B Radial ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Large process vessels operating under extreme temperature and pressure conditions are normally clad/ lined with materials like stainless steel, aluminium, nickel & its alloys, copper & its alloys and titanium. The cladding thickness is generally about __________ percent of the total thickness. 1 to 5 10 to 20 30 to 40 40 to 50 1 to 5 10 to 20 30 to 40 40 to 50 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used? 0.8 0.9 1 (0.8)0.5 0.8 0.9 1 (0.8)0.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Correct use of 'factor of safety' is very important in equipment design. It is defined as the ratio of the Ultimate stress to working stress None of these Ultimate stress to breaking stress Working stress to ultimate stress Ultimate stress to working stress None of these Ultimate stress to breaking stress Working stress to ultimate stress ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are easier to clean None of these Are less prone to fouling Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less Are easier to clean None of these Are less prone to fouling ANSWER DOWNLOAD EXAMIANS APP
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