Process Equipment and Plant Design
Liquid gradient over the tray results due to the

Low gas velocity
Large reflux ratio
Resistance offered to flow of liquids by caps & risers and the flow of gas
Large plate spacing

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In a shell and tube heat exchanger, the clearance of the tube is generally

More in case of triangular pitch as compared to the square pitch tube layout
Equal to the tube diameter
Not less than one-fourth of the tube diameter or 3/16"
More than the tube diameter

ANSWER DOWNLOAD EXAMIANS APP