Is inversely proportional to the resistance across which the drop occurs
And the wall are proportional to individual resistances
And the wall is not related
None of these
✅ The correct answer is option B.
Heat Transfer MCQs
In a 1-1 cocurrent heat exchanger, if the tube side fluid outlet temperature is equal to the shell side fluid outlet temperature, then the LMTD is
∞
0
Equal to the difference between hot and cold fluids inlet temperature
Equal to the difference between hot fluid inlet temperature and cold fluid outlet temperature
✅ The correct answer is option B.
h.D/K is called the __________ number.
Nusselt
Peclet
Rayleigh
Grashoff
✅ The correct answer is option A.
For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is
3
0.33
1
1.33
✅ The correct answer is option C.
With increase in temperature, the thermal conductivity of non-metallic amorphous solids
Decreases
Increases
Remains constant
First decreases upto certain temperature and then increases
✅ The correct answer is option B.