Pick out the wrong statement.
A) Heat transfer from a hot body to cold body by the emission of heat waves is called radiation
B) Filmwise condensation takes place on non-wettable surfaces
C) The boiling point of a solution is affected by liquid head as well as boiling point elevation
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
Q24: Choose the correct equation.
A)Nu = (Re) (Pr)
Q25: In a heat exchanger, the rate of
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