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Chemical Engineering - Heat Transfer

Exercise : Heat Transfer - Section 3
16.
In a single effect evaporator, the economy is
1
< 1
> 1
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is
0
1
>1
<1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Which of the following is not concerned with the heat transfer?
Brinkman number
Stanton number
Schmidt number
Peclet number
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Latent heat absorbed by 1 lb of water at 212°F, when it is changed to steam at 212°F, may be around __________ BTU.
180
970
3.97
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
In counter flow compared to parallel flow,
LMTD is greater.
less surface area is required for a given heat transfer rate.
both (a) and (b).
more surface area is required for a given heat transfer rate.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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