A finned surface consists of root or base area of 1m2 and fin surface – McqOptions

MCQOPTIONS

1.	A finned surface consists of root or base area of 1m2 and fin surface area of 2m2. The average heat transfer coefficient for finned surface is 20W/m2K effectiveness of fins provided is 0.75. If finned surface with surface with root or base temperature of 50°C is transferring heat to fluid of 30°C, then the rate of heat transfer without using fin is _______
A.	400W
B.	800W
C.	1000W
D.	1200W
Answer» C. 1000W

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