The equivalent diameter for fluid flow through a channel of constant n – McqOptions

MCQOPTIONS

1.	The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area ' A ' is given by (where, P = perimeter of the channel in contact with the fluid)
A.	4 A / P
B.	A / P
C.	4 P / A
D.	A
Answer» B. A / P

Discussion

No Comment Found

Related MCQs

The minimum shell thickness for tank ≤ 15 metres diameter is limited to __________ mm, for reasons of elastic stability.
Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter )
In a multiple effect evaporator system having \'n\' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect.
Value of Peclet number = ∞, is the representative of
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress
for a Tee (used as elbow, entering run) would be around
What is the value of ' q ' for saturated vapor feed to a distillation column ?(where q = fraction of the feed stream that is liquid.)
for 90Â° elbow (medium radius) and 90Â°square elbow would be respectively around
Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, ? = yield strength and E = modulus of elasticity)
The safe height ( h ) to diameter ( d ) ratio (i.e., h / d ) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than