Chemical Engineering :: Process Equipment and Plant Design
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The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.
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The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than
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For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.
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The ratio of linear stress to linear strain is termed as the
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__________ head is the most economical for cylindrical vessels designed for operating at high pressure (> 15 atm.).
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Bubble cap plate column is
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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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Pick out the wrong statement.
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The force due to wind load acting on a tall vessel depends upon its
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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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A.
Rivetting provides a permanent fastening method.
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B.
The joint made by overlapping of one plate over the other, and then rivetting the two plates together with two rows of rivets is called 'double rivetted butt joint'.
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C.
Shank diameter of the rivets should be less than the size of the hole drilled in the plate for rivetting.
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D.
The efficiency of a rivetted joint is the ratio of the strength of the rivetted joint to the strength of the solid plate.
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