Pick out the correct statement.
A) Higher is the temperature of the radiating body, higher is the wavelength of radiation
B) Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder
C) The wavelength corresponding to maximum mono-chromatic emissive power increases with rise in temperature
D) Solid angle subtended by the finite surface at the radiating element is called the angle of incidence
Correct Answer:
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Q2: The overall heat transfer co-efficient for a
Q3: The Graetz number is concerned with the
A)Mass
Q4: At what value of Prandtl number, conduction
Q5: The unit of conductance in SI unit
Q6: Pick out the wrong statement.
A)Bubble size increases
Q8: Nucleate boiling is promoted
A)On polished surfaces
B)On rough
Q9: Which of the following has the lowest
Q10: The thermal boundary layer at NPr >
Q11: In case of a multipass shell and
Q12: Which of the following is directly concerned
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