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Mechanical Engineering · Q60

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 60

Q60

The critical radius is the insulation radius at which the resistance to heat flow is

A.
Maximum
B.
Minimum
Answer
C.
Zero
D.
None of these

Answer: Option B

Solution

Answer: Option B
Solution:
It is the radius of insulation before heat transfer increases and after heat transfer decreases.
The critical radius is the insulation radius at which the resistance to heat flow is Minimum
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