Q. The distance between the centre of a rivet hole to the nearest edge of the plate is called

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Q. Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

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Q. A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap.

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Q. Lₑ/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

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Q. __________ heat exchanger is also known as 'hair pin type' exchanger,

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Q. What is the value of 'q' for saturated vapor feed to a distillation column ?(where q = fraction of the feed stream that is liquid.)

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Q. In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

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Q. Frame thickness in the plate and frame filter press is normally in the range of __________ inches.

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Q. 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

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Q. Lₑ/D for a Tee (used as elbow, entering run) would be around

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Q. Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

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Q. Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.

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Q. Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8").

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Q. Pick out the wrong statement.

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Q. Pick out the wrong statement pertaining to shell and tube heat exchanger.

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Q. Wind load consideration in the design of a support can be neglected, when the vessel is

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Q. The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

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Q. A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

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Q. Scale up problem in design based on the similarity concept takes into account __________ similarity.

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Q. __________ closure is the weakest enclosure for cylindrical vessels.

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