1000+ Process Equipment and Plant Design MCQ Questions & Answers Pdf - 3

Question: 11

Fouling factor must be included in the calculation of overall design heat transfer coefficient, when the liquid

(A) is highly viscous

(B) is of high specific gravity

(C) containing suspended solids flows at high velocity

(D) containing suspended solids flows at low velocity

Question: 12

Log mean temperature difference in case of multipass shell and tube heat exchanger is always

(A) less than arithmetic mean value

(B) more than arithmetic mean value

(C) more than geometric mean value

(D) both b and c

Question: 13

LMTD correction factor is used in heat exchanger design for

(A) counter flow of hot and cold fluids

(B) fouling fluids

(C) double pipe heat exchanger

(D) multipass shell and tube heat exchanger

Question: 14

For identical operating conditions, the pressure drop over _____ tray is the highest out of the following.

(A) bubble cap

(B) counterflow

(C) valve

(D) sieve

Question: 15

When one of the fluids is highly corrosive and has fouling tendency, it should

(A) flow outside the tube, when the flow is counter current and inside the tube when the flow is co-current

(B) flow at a very slow velocity

(C) preferably flow outside the tube

(D) preferably flow inside the tube for its easier internal cleaning