A) Produces air which carries heat away from the body
B) Sets the air in motion, thereby increasing the evaporation of sweat
C) Produces convection currents
D) Throws cool air on us
Correct Answer: B
Solution :[b] Forced convection, as is effectuated by use of a fan or a blower, results in more efficient heat transfer than is possible by natural convection (which is the process in action in the absence of a fan).
You need to login to perform this action.
You will be redirected in 3 sec