In case of natural covection, the Nusselt number is function of
A.Reynolds number
B.Reynolds number and Prandtl number
C.Grashof’s number and Prandtl number
D.Weber number and Mach number
E.None of the above
A.Reynolds number
B.Reynolds number and Prandtl number
C.Grashof’s number and Prandtl number
D.Weber number and Mach number
E.None of the above
A.Remains the same
B.Decreases due to convection
C.Increases due to convection
D.Increases due to radiation
E.Decreases due to radiation
A.Watt / m2 K
B.Kcal/m-hr?C
C.BTU/ft-h?F
D.cal/c,-sec?K
E.CHU/ft-hr?C
A.Stagnet diffusion
B.Equimolar counter diffusion
C.Either of (A) and (B) above
D.None of the above
A.geometric similarity
B.kinematic similarity
C.thermal similarity
D.dynamic similarity
A.Low pressure
B.High pressure
C.Night showers
D.Humidity
E.Temperature fall of atmosphere
A.20?C
B.4?C
C.0?C
D.? 4?C
E.Absolute zero
A.Parallel flow heat exchanger
B.Counter current heat exchanger
C.Cross flow heat exchanger
D.All of the above
E.None of the above
A.Structure
B.Composition
C.Density
D.Porosity
E.All of the above
A.Shell side
B.Tube side
C.Either of (A) and (B) above
D.None of the above