Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

None of these
D/5 or minimum 2" to 5D
D/5 or minimum 2" to D
D/2 or minimum 2" to 5D

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design

Only if the opening is on spherical vessel
Only if the opening is on a horizontal cylinderical vessel
Irrespective of the shape of the vessel
Only if the opening is on a vertical cylinderical vessel

ANSWER DOWNLOAD EXAMIANS APP