Process Equipment and Plant Design Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the Practical limit reached, due to low heat transfer rate because of inadequate temperature difference Economic limit reached, when the plant cost exceeds the saving of steam Neither A nor B Both A & B Practical limit reached, due to low heat transfer rate because of inadequate temperature difference Economic limit reached, when the plant cost exceeds the saving of steam Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rotary driers are most economically designed for the number of heat transfer units (HTU) from 1.5 to 2.5 10 to 20 0.01 to 1 5 to 10 1.5 to 2.5 10 to 20 0.01 to 1 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Removable connection of tubes to tube sheet is called Ferrule Nipple Saddle Socket Ferrule Nipple Saddle Socket 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 In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter. One-fourth of 1.25-1.50 times Less than 2.5 times One-fourth of 1.25-1.50 times Less than 2.5 times ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is pd/t pd/4t pd/3t pd/2t pd/t pd/4t pd/3t pd/2t ANSWER DOWNLOAD EXAMIANS APP
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