Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Fixed charges initially
Vapour & liquid load both
Running cost of cooling water for condenser
Running cost of steam for reboiler

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a horizontal tube evaporator.

Liquor flows inside the tube, while the steam is outside submerging the tube
It is unsuitable for concentrating those liquids, which form a scale or deposit salt
It is suitable for process, in which the final product is a liquor instead of solid
Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
A stuffing box is used for

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

ANSWER DOWNLOAD EXAMIANS APP