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An oil cooler of an engine has outside diameter of 0.15m2, with surface temperature of 60˚. Air moves over the cooler surface of 20˚ which brings the surface coefficient equal to 40.4 W/m2K. The rate of heat transfer will be?
  • a)
    242.4 W
  • b)
    342.4 W
  • c)
    232.4 W
  • d)
    332.4 W
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
An oil cooler of an engine has outside diameter of 0.15m2, with surfa...
The rate of heat transfer is given by,
Q=(T2-T1)A.h
Where T2 = Temperature of cooler
T1= temperature of air
A= diameter
H= Surface coefficient.
Hence, Q=(60-20)0.15*40.4= 242.4 W
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An oil cooler of an engine has outside diameter of 0.15m2, with surface temperature of 60˚. Air moves over the cooler surface of 20˚ which brings the surface coefficient equal to 40.4 W/m2K. The rate of heat transfer will be?a)242.4 Wb)342.4 Wc)232.4 Wd)332.4 WCorrect answer is option 'A'. Can you explain this answer?
Question Description
An oil cooler of an engine has outside diameter of 0.15m2, with surface temperature of 60˚. Air moves over the cooler surface of 20˚ which brings the surface coefficient equal to 40.4 W/m2K. The rate of heat transfer will be?a)242.4 Wb)342.4 Wc)232.4 Wd)332.4 WCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about An oil cooler of an engine has outside diameter of 0.15m2, with surface temperature of 60˚. Air moves over the cooler surface of 20˚ which brings the surface coefficient equal to 40.4 W/m2K. The rate of heat transfer will be?a)242.4 Wb)342.4 Wc)232.4 Wd)332.4 WCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An oil cooler of an engine has outside diameter of 0.15m2, with surface temperature of 60˚. Air moves over the cooler surface of 20˚ which brings the surface coefficient equal to 40.4 W/m2K. The rate of heat transfer will be?a)242.4 Wb)342.4 Wc)232.4 Wd)332.4 WCorrect answer is option 'A'. Can you explain this answer?.
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