Process Equipment and Plant Design
Shortest distance between two tubes is

None of these
Called tube pitch
Called tube clearance
More in case of triangular pitch as compared to square pitch of tube layout

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
A stuffing box is used for

Absorbing the contraction/expansion of pipeline due to temperature changes
Reducing the resistance of fluid flow
Facilitating smooth opening and closing of a valve
Prevention of fluid leakage around moving parts

ANSWER DOWNLOAD EXAMIANS APP