Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a long tube vertical evaporator. None of these Steam is fed to the shell, whereas the liquor is filled inside the tube Tube dia is 3-6 cms, while tube length in 3-6 metres Liquor level is maintained at l/3rd to 1/2 of the height of the tube None of these Steam is fed to the shell, whereas the liquor is filled inside the tube Tube dia is 3-6 cms, while tube length in 3-6 metres Liquor level is maintained at l/3rd to 1/2 of the height of the tube ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to 0.0176G1.37 1.004G0.8 HG = 0.0176G0.37 HG = 1.004G0.37 0.0176G1.37 1.004G0.8 HG = 0.0176G0.37 HG = 1.004G0.37 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise. 1000 1500 300 600 1000 1500 300 600 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rate of filtrate delivery is inversely proportional to the Viscosity of filtrate Filtering area & the pressure difference driving force Both A & B Cake & filter medium resistance Viscosity of filtrate Filtering area & the pressure difference driving force Both A & B Cake & filter medium resistance ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Shortest distance between two tubes is More in case of triangular pitch as compared to square pitch of tube layout Called tube clearance Called tube pitch None of these More in case of triangular pitch as compared to square pitch of tube layout Called tube clearance Called tube pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 24.6 (Δp/μ) Η = 0.25 log μ - 1.67 Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 24.6 (Δp/μ) ANSWER DOWNLOAD EXAMIANS APP
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