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Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 3
26.
Among liquids, water has a comparatively high value of thermal conductivity, due to its
low density
high viscosity
partial ionisation
dense structure
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Reynold's analogy states that (where, St = Stanton number f = friction factor)
St = 4f
St = f1/2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is
forward
backward
parallel
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The sum of reflectivity and absorptivity for an opaque body is equal to
0.5
1
0
2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The film thickness for laminar film condensation on vertical surface __________ from top to bottom.
cummulatively increases
cummulatively decreases
remains constant
and the surface conductance increase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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