71. The function of manholes provided in the shell of a distillation column is to
72. In the agitators, the power required will be changed with the increase of diameter of agitator (D) as
73. Pick out the wrong statement.
74. Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is
75. Fresh water carrying pipelines in chemical industries are coloured with __________ color.
76. Pressure drop per tray in the atmospheric distillation column is about __________ psi.
77. A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.
78. Optimum reflux ratio in a continuous distillation column is determined by the
79. What is the slope of the operating line in the rectifying section of a distillation coloumn?
80. Nominal size of a pipe is an indication of its __________ diameter.
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