If the calculated hcal is greater than the maximum heat transfer co-efficient of say arbitrary value of 300 Btuh.ft2℉ for organics and 1000 Btuh.ft2℉ for water then what should we do?

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1.	If the calculated hcal is greater than the maximum heat transfer co-efficient of say arbitrary value of 300 Btu/h.ft2℉ for organics and 1000 Btu/h.ft2℉ for water, then what should we do?
A.	Take hcal > 300 Btu/h.ft2℉ for organics and hcal < 1000 Btu/h.ft2 ℉ for water
B.	Take hcal= 300 Btu/h.ft2℉ for organics and hcal = 1000 Btu/h.ft2 ℉ for water
C.	Take hcal > 300 Btu/h.ft2℉ for organics and hcal > 1000 Btu/h.ft2 ℉ for water
D.	Take hcal > 300 Btu/h.ft2℉ for organics and hcal > 1000 Btu/h.ft2 ℉ for water
Answer» C. Take hcal > 300 Btu/h.ft2℉ for organics and hcal > 1000 Btu/h.ft2 ℉ for water

Discussion

Explore topic-wise MCQs in Heat Transfer Operations Questions and Answers.

If the calculated hcal is greater than the maximum heat transfer co-efficient of say arbitrary value of 300 Btu/h.ft2℉ for organics and 1000 Btu/h.ft2℉ for water, then what should we do?