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Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 1
6.
When vaporisation takes place directly at the heating surface, it is called
film boiling
nucleate boiling
vapour binding
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Steam consumption in kg/hr in case of an evaporator is given by (where, C & E are capacity the economy of the evaporator respectively)
C/E
E/C
CE
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Reynold's analogy states that
Nst α f
Nst α NRe
NNu α f
NRe α f
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
With increase in temperature, the thermal conductivity of non-metallic amorphous solids
decreases
increases
remains constant
first decreases upto certain temperature and then increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Fourier's law applies to the heat transfer by
convection
radiation
conduction
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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