Transmission Of Heat Question 332
Question: Direction: In the following questions, more than one of one answers given are correct. Select the correct answers and mark it according to the following codes:
The rate of loss of heat from a body cooling under conditions of forced convection is proportional to its (1) surface area (2) excess of temperature over that of surrounding (3) heat capacity (4) absolute temperature Codes:
Options:
A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Show Answer
Answer:
Correct Answer: A
Solution:
[a] In forced convection rate of loss of heat $ \frac{Q}{T}\propto A( T-T _{0} ) $