Process Equipment and Plant Design At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally. Unpredictable Higher Lower Same Unpredictable Higher Lower Same 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 Does not affect the capacity Increases capacity Increases economy Both B & C Does not affect the capacity Increases capacity Increases economy Both B & C ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a basket type evaporator. Downtake is formed by the annular space between the bundle and the shell There is no central downtake The tube bundle is suspended on bracket It is used for high viscosity liquor having large rate of scaling Downtake is formed by the annular space between the bundle and the shell There is no central downtake The tube bundle is suspended on bracket It is used for high viscosity liquor having large rate of scaling ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 2.7 to 3 1.6 to 2 1.1 to 1.5 2.2 to 2.6 2.7 to 3 1.6 to 2 1.1 to 1.5 2.2 to 2.6 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the Total cost consideration (fixed cost of the column plus the cooling water & steam cost) Flooding limit of the column Maximum permissible vapour velocity None of these Total cost consideration (fixed cost of the column plus the cooling water & steam cost) Flooding limit of the column Maximum permissible vapour velocity None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement about the design of seive plate column and the bubble cap column. The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns Weir height for a bubble cap plate column is the same as that for a seive plate column Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate Weir length for a bubble cap plate is the same as that for the seive plate The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns Weir height for a bubble cap plate column is the same as that for a seive plate column Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate Weir length for a bubble cap plate is the same as that for the seive plate ANSWER DOWNLOAD EXAMIANS APP
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