Question:-
The reason for a person feeling more comfortable on a warm day if seated in front of an electric fans is that the
Option (A)
Metabolic heat production is reduced
Option (B)
Body loses more heat by convection and evaporation
Option(C)
Body loses more heat by radiation
Option(D)
Body loses more3 heat by evaporation and radiation
Correct Option:
(B)
Question Solution:
For comfortable condition
QM - W = QE ± QR ± QC ± QS
The plus sign is used when heat is lost to surrounding and negative sign is used when heat is gained from surrounding. When QE & QR is positive then human body feel comfortable quickly.
question-answer-faq-9385