Process Equipment and Plant Design
In case of a continuous distillation column, increase in reflux ratio may result in the

All of these
Greater cost for the reboiler heat supply
Greater cost for the condenser coolant
Lower fixed charges for the column

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Generally, elliptical dished heads

All of these
Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m²
Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D
Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger

Permits the use of less tubes in a given shell diameter
Both B and C
Facilitates comparatively easier external cleaning because of large clearance
Permits the use of more tubes in a given shell diameter

ANSWER DOWNLOAD EXAMIANS APP