Process Equipment and Plant Design
In a shell and tube heat exchanger, the overall heat transfer co-efficient is proportional to the tube side (volumetric flow rate)0.8. This is valid, only when the ratio of the tube side film resistance to the total resistance is almost equal to

2
1
20.8
∞

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.

Either A or B, whichever is larger
3 times the thickness
Either A or B, whichever is smaller
6% of I.D.

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when

Sub cooling of condensate is desired
Both the functions of condensation & sub cooling are carried out in a single unit
Only the function of condensation is to be carried out
Hydrostatic head is required for refluxing the condensate

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Process Equipment and Plant Design