Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans ?

(A) Emissivity of pipe surface (X)
(B) Diameter & length of the pipe (X)
(C) Temperature of hot pipe surface & that of air in the room (X)
(D) None of these ()

Answers: Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in room without fans none of these.