*/*_The critical radius is the insulation radius at which the resistan

1.	/_The critical radius is the insulation radius at which the resistance to heat flow is?
A.	Maximum
B.	Minimum
C.	Zero
D.	None of these
Answer» C. Zero

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*/*_The critical radius is the insulation radius at which the resistance to heat flow is?

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/_The critical radius is the insulation radius at which the resistance to heat flow is?