Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the None of these Maximum permissible vapour velocity Flooding limit of the column Total cost consideration (fixed cost of the column plus the cooling water & steam cost) None of these Maximum permissible vapour velocity Flooding limit of the column Total cost consideration (fixed cost of the column plus the cooling water & steam cost) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing. 100-150 43835 1000-1500 20-40 100-150 43835 1000-1500 20-40 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation Increases capacity Increases economy Does not affect the capacity Both B & C Increases capacity Increases economy Does not affect the capacity Both B & C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rivets are generally specified by the None of these Overall length Shank diameter Head diameter None of these Overall length Shank diameter Head diameter ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Joint efficiency (J) for a seamless pipe is < 0.5 1 0.85 1.2 < 0.5 1 0.85 1.2 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. 600 300 1000 1500 600 300 1000 1500 ANSWER DOWNLOAD EXAMIANS APP
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