131. The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations.
132. The type of stress developed in a metallic bar on subjecting it to a change in temperature without allowing it to be deformed is __________ stress.
133. Normal screwed fittings are used for pipes upto a diameter of __________ inches.
134. Reflux ratio variation in a distillation column is between
135. In a bag filter, the pressure drop increases directly as the
136. Which of the following is the best tube material from thermal conductivity point of view alone?
137. In a heat exchanger, shell side fluid velocity can be changed by changing the tube
138. Bubble cap tray is the most commonly used tray in large distillation column, because
139. The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)
140. What is the value of 'q' for saturated vapor feed to a distillation column ?
(where q = fraction of the feed stream that is liquid.)
(where q = fraction of the feed stream that is liquid.)
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