Related Questions

The product of Reynolds number and Prandtl number is known as
A Stanton number
B Biot number
C Peclet number
D Grashoff number
Prandtl and Reynold's analogies are identical for Prandtl number value of
A 0
B 0.5
C 1
D 5
Calburn analogy is applicable for the value of Prandtl number from
A 0.001 to 1
B 0.6 to 120
C 0.5 to 5
D 120 to 400
For what value of Prandtl number, the Col-burn analogy is valid?
A 0.06 to 120
B 0.6 to 120
C 1 to 103
D 1 to 50
According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor)
A 2f
B f
C $$\frac{{\text{f}}}{2}$$
D $$\frac{{\text{f}}}{4}$$
The ratio of Nusselt number and the product of Reynold's number and Prandtl number is equal to
A Stanton number
B Biot number
C Peclet number
D Grashoff number
Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer.
A Grashoff
B Biot
C Stantan
D Reynolds
If Prandtl number is greater than the Schmidt number, then the
A Thermal boundary layer lies inside the concentration boundary layer
B Concentration boundary layer lies inside the thermal boundary layer
C Thermal & concentration boundary layers are of equal thickness
D Hydrodynamic(i.e., momentum)boundary layer is thicker than the other two
Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.
A Schmidt
B Sherwood
C Peclet
D Stanton
In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of
A Relative roughness
B Absolute roughness
C Friction co-efficient for flows at equal Reynold number
D All of the above

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