Heat Transfer
Reason for operating an evaporator in multiple effect is to secure

Increased steam economy
Both A and B
Decreased steam consumption
Increased capacity

ANSWER DOWNLOAD EXAMIANS APP

Heat Transfer
Nusselt number is the ratio of the

Temperature difference to the temperature gradient at the wall
None of these
Heat flux at the wall to that across the entire pipe
Temperature gradient of the wall to that across the entire pipe

ANSWER DOWNLOAD EXAMIANS APP