Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer.
A) Grashoff
B) Reynolds
C) Both 'a' & 'b'
D) Prandtl & Grashoff
Correct Answer:
Verified
Q6: Which of the following situations can be
Q7: Reason for operating an evaporator in multiple
Q8: Heat transfer by _ may not necessarily
Q9: Fluid motion in the natural convection heat
Q10: Nusselt number is the ratio of the
A)Temperature
Q12: Prandtl number is the reciprocal of
A)Thermal diffusivity/Momentum
Q13: In case of parallel flow heat exchanger,
Q14: For a multipass shell and tube heat
Q15: Evaporator tubes are generally
A)Horizontal
B)Vertical
C)Inclined
D)Random
Q16: Thermal conductivity of a gas at low
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