Q. Heat transfer co-efficient, hԍ(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hԍ = 0.0176G^0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to

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Q. In the agitators, the power required will be changed with the increase of diameter of agitator (D) as

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Q. Apex angle of conical heads used in the bottom heads of chemical process equipments is usually

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Q. A 'rupture disc' is provided in chemical equipments as an accessory meant for

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Q. In a vertical short tube evaporator (Calendria type), the

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Q. In a multipass shell and tube heat exchanger, the problem of differential expansion between the shell and tube passes is taken care of by using a

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Q. In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is

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Q. Any shell opening greater than 5 cms for a storage tank must be reinforced for reason of

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Q. The thermal stress in a metallic bar does not depend upon the

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Q. The minimum baffle height should be

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Q. To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to

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Q. The normal range of velocity of water in pipes is __________ m/sec.

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Q. Value of Peclet number = 0, is the representative of

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Q. Poisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as

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Q. Removable connection of tubes to tube sheet is called

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Q. Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around

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Q. In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a

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Q. The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

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Q. Lₑ/D for couplings and unions would be

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Q. What is the slope of the operating line in the rectifying section of a distillation coloumn ?

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