Process Equipment and Plant Design
In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a

Clearance of 25-75 mm
Neither A nor B
Either A or B
Cap pitch of 1.3-2 times the cap diameter

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

Employs high velocity, high heat transfer rate and less heating surface requirement
Both B & C
Is economical in operation
Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle

ANSWER DOWNLOAD EXAMIANS APP