$($a$)$ What are the common specification requirements for both process pumps and blowers?

$($b$)$ What are the main Design considerations and codes that govern the Design of pressure vessels used in Industrial applications?

$($c$)$ Write steps in designing of a spherical shell.

$($d$).$ What are the Key differences between leg support and saddle support designs for horizontal pressure vessels, and what factors should be considered when selecting between the two?