In a heat exchanger, the rate of heat transfer from the hot fluid to the cold fluid
A) Varies directly as the area and the LMTD
B) Directly proportional to LMTD and inversely proportional to the area
C) Varies as square of the area
D) None of these
Correct Answer:
Verified
Q15: Evaporator tubes are generally
A)Horizontal
B)Vertical
C)Inclined
D)Random
Q16: Thermal conductivity of a gas at low
Q17: Which of the following is the most
Q18: The interchange factor for radiation heat transfer
Q19: If the thermal conductivity of a wall
Q20: With increase in temperature, the thermal conductivity
Q21: Grashoff number is given by
A)gD3.?.?t?2/?2
B)gD2??t?/?2
C)gD2??tP2?
D)gD3??tP2/?
Q22: Which area is used in case of
Q23: Pick out the wrong statement.
A)Heat transfer from
Q24: Choose the correct equation.
A)Nu = (Re) (Pr)
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