Multiple Choice
Overall heat transfer co-efficient of a particular tube is U1. If the same tube with some dirt deposited on either side has coefficient U2, then
A) U1 = U2
B) U2 > U1
C) U1 > U2
D) U1 = dirt factor - U2
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q2: Prandtl number is given by<br>A)CP µ/a<br>B)hD/k<br>C)CP µ/k<br>D)µ/h
Q3: For _ Prandtl number values, the heat
Q4: Tube pitch is the _ of tube
Q5: A composite flat wall of a furnace
Q6: In a multiple effect evaporator, the effect
Q8: Heat exchanger tubes are never made of<br>A)Plain
Q9: For large heat transfer area requirement, shell
Q10: Wavelength corresponding to the maximum energy is
Q11: A black body when hot, emits heat
Q12: In case of a vertical tube evaporator,