In case of a shell and tube heat exchanger, the minimum shell thickness for carbon steel (inclusive of corrosion allowance) depends on shell diameter and is in the range of ________________ mm?

A. Larger dia vessel
B. Smaller dia vessel
C. Larger dia long vessel
D. Strength of the vessel is same irrespective of the diameter

A. 10
B. 50
C. 100
D. 200

A. Centre to centre distance between two consecutives rivets in a row is called the pitch
B. A riveted joint made in overlapg plates is called butt joint
C. Hole size drilled in riveted plates is less than the actual size of the rivet
D. None of these

A. Same as that for fluid flow
B. Less than that for fluid flow
C. More than that for fluid flow
D. D2 – D1 (D1 and D2 are I.D. of inner and outer pipes respectively)

A. Height is 75% of the I.D. of the shell
B. Height is 25% of the I.D. of the shell
C. Spacing is 75% of its height
D. Width is 25% of its height

A. Hold baffle in space
B. Fix the tubes in position
C. Account for thermal strain
D. None of these