Q. Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

View solution

Q. Pick out the correct statement.

View solution

Q. "A claming section" before the liquid flows into the downcomer is privided to

View solution

Q. The units of Young's modulus of elasticity and __________ are the same.

View solution

Q. In the design of a shell and tube heat exchanger, the corrosion allowance

View solution

Q. Vertical condenser is advantageous to the horizontal condenser from operation point of view, when

View solution

Q. In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aₐ = Annular passage area, and Sₐ = Slot area)

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The minimum baffle height should be

View solution

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

View solution

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

View solution

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

View solution