If x is the distance from leading edge, then the boundary layer thickness in laminar flow varies as________________?

A. x
B. x
C. x
D. x/7

Related Mcqs:

The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is__________________?
A. 0.40 cm B. 0.20 cm C. 0.10 cm D. 0.05 cm Assume that boundary layer is entirely laminar...
The boundary layer thickness in turbulent flow varies as______________?
A. x”7 B. x,/2 C. x4/5 D. x3/5 where x is the distance from leading edge...
The maximum thickness of boundary layer in a pipe of radius r is____________________?
A. 0 B. r/2 C. r D. 2r...
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is_________________?
A. d > m > e B. d > e > m C. e > m > d D. e > d > m...
The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is________________?
A. 0.223 R B. 0.423 R C. 0.577 R D. 0.707 R where R is radius of pipe...
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be_________________?
A. 0.423 D B. 0.577 D C. 0.223 D D. 0.707 D where D is the depth of flow...
The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is_______________?
A. 1/3 R B. 1/2 R C. 2/3 R D. 3/4R where R is the radius of pipe...
A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be__________________?
A. less than 1 m/sec B. 1 m/sec C. 1.5 m/sec D. 2 m/sec...
For laminar flow in circular pipes, the Darcy’s friction factor f is equal to_________________?
A. 16/Re B. 32/ Re C. 64/ Re D. none of the above where R,, is Reynolds number...
The velocity distribution for laminar flow through a circular tube__________________?
A. is constant over the cross-section B. varies linearly from zero at walls to maximum at centre C. varies parabolically with maximum at the centre D. none of the above...