Mechanical Engineering Mcqs


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  • The slope of the feed line in distillation operation is given by (where, q = fraction of the feed stream that is liquid ?
  • The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from__________________?
  • Liquid gradient over the tray results due to the___________________?
  • Height equivalent to a theoretical plate (HETP) is the height of packing that will give the same separation as one theoretical plate in gas-liquid mass transfer operations like distillation, absorption/stripping and humidification/dehumidification. HETP which is experimentally determined, depends upon the_______________?
  • 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 ____________________?

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