Process Equipment and Plant Design
Le/D for fully open gate valves would be

Around 7
Much less (say 2% than that for fully open globe valves)
Much more than that for fully open globe valves
Both B and C

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Economic limit reached, when the plant cost exceeds the saving of steam
Both A & B
Practical limit reached, due to low heat transfer rate because of inadequate temperature difference
Neither A nor B

ANSWER DOWNLOAD EXAMIANS APP