Q. Liquid gradient over the tray results due to the

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Q. The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles ?

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Q. Bubble cap plate column is

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Q. In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

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Q. Pick out the wrong statement.

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Q. The force due to wind load acting on a tall vessel depends upon its

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Q. Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

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Q. Power required for agitation depends upon the

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Q. Tube height in a calendria type evaporator is normally less than __________ metres.

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Q. Pick out the wrong statement.

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Q. For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

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Q. Cylinderical shell thickness of rotary drier is generally __________ mm.

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Q. The ratio of lateral strain to linear strain is termed as the

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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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