The value of convective coefficient of air in case of free convection – McqOptions

MCQOPTIONS

1.	The value of convective coefficient of air in case of free convection is
A.	3-7 W/m<sup>2</sup> K
B.	3-4 W/m<sup>2</sup> K
C.	8-9 W/m<sup>2</sup> K
D.	9-9.5 W/m<sup>2</sup> K
Answer» B. 3-4 W/m<sup>2</sup> K

Discussion

No Comment Found

Related MCQs

If an annulus has an inner diameter of d 1 and an outer diameter of d 2 then the equivalent diameter is
In many flow situations, the duct can be(i) Circular(ii) Rectangle(iii) Trapezoidal(iv) AnnulusIdentify the correct option
For a duct of rectangular cross-section with length l and breadth b, the value of d e is
The characteristic dimension d in the relation R E = V d p/δ is the equivalent diameter and is defined as how many times the cross-sectional flow area divided by the wetted perimeter
The nature of the fluid flow is governed by the following parameters(i) Mean flow velocity(ii) Density of fluid(iii) Dynamic viscosity of the fluidIdentify the correct statements
Following are the characteristics of turbulent flow(i) Eddying(ii) Sinuous(iii) RectilinearIdentify the correct option
IN_MANY_FLOW_SITUATIONS,_THE_DUCT_CAN_BE?$
If_an_annulus_has_an_inner_diameter_of_d_1_and_an_outer_diameter_of_d_2_then_the_equivalent_diameter_is$
For a duct of rectangular cross-section with length l and breadth b, the value of d e i?
The characteristic dimension d in the relation R E = V d p/‚âà√≠¬¨‚Ä¢ is the equivalent diameter and is defined as how many times the cross-sectional flow area divided by the wetted perimeter$