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Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 5
46.
For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are
same
different
never different
linearly related
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
During crystallisation, formation of crystal can occur in __________ solution only.
saturated
supersaturated
undersaturated
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
An evaporator while concentrating an aqueous solution from 10 to 40% solids evaporates 30000 kg of water. The amount of solids handled by the system in kg is
4000
9000
4600
3000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
An insulator should have
low thermal conductivity.
high thermal conductivity.
less resistance to heat flow.
a porous structure.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
In a backward feed multiple effect evaporator
feed is introduced in the first effect.
feed flows from low pressure to high pressure.
no pumps are required between successive effects.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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