Upto the critical radius of insulation, added insulation, will____________________?

(A) Increase the heat loss (X)
(B) Decrease heat flux (X)
(C)  Decrease heat loss and will have no effect beyond that ()
(D) Reduce convection heat loss compared to conduction heat less (X)

Answers: Upto the critical radius of insulation, added insulation, will Decrease heat loss and will have no effect beyond that.