Multiple choice general knowledge science & technology

Up to critical radius of insulation

  1. a)convection heat loss will be less than conduction heat loss

  2. b)added insulation will increase heat loss

  3. c)added insulation will decrease heat loss

  4. d)heat flux will decrease
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Up to the critical radius of insulation, adding insulation actually increases heat loss for cylindrical systems like pipes. This counterintuitive result occurs because the increased outer surface area (which increases convection) outweighs the insulation's resistance to conduction. Only beyond the critical radius does insulation reduce heat loss.

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