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

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

View solution

Q. Removable connection of tubes to tube sheet is called

View solution

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

View solution

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

View solution

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

View solution

Q. Lₑ/D for couplings and unions would be

View solution

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

View solution

Q. Stage efficiency for packed tower varies with the

View solution

Q. Maximum plate efficiency is achieved in case of __________ flow.

View solution

Q. The LMTD correction factor (Fт) is defined as the

View solution

Q. The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

View solution

Q. The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is

View solution

Q. Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from

View solution