Process Equipment and Plant Design Optimum reflux ratio in a continuous distillation column is determined by the 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 Total cost consideration (fixed cost of the column plus the cooling water & steam cost) Flooding limit of the column ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity. 95 80 60 45 95 80 60 45 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of the distillation column. None of these If sufficient slot area is not provided, the gas may pass through the skirt clearance Generally, a skirt clerance of 0.5" to 1.5' is recommended to prevent plugging of the slots by residue build up The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles None of these If sufficient slot area is not provided, the gas may pass through the skirt clearance Generally, a skirt clerance of 0.5" to 1.5' is recommended to prevent plugging of the slots by residue build up The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the agitators, the power required will be changed with the increase of diameter of agitator (D) as D D⁹ D⁵ D² D D⁹ D⁵ D² ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Rivets are generally specified by the Overall length Head diameter Shank diameter None of these Overall length Head diameter Shank diameter None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is Always less than the diameter of the tube Called tube pitch None of these Called tube clearance Always less than the diameter of the tube Called tube pitch None of these Called tube clearance ANSWER DOWNLOAD EXAMIANS APP
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