Related Questions

For laminar flow of Newtonion fluid in a circular pipe, the velocity distribution is a function of the distance 'd' measured from the centre line of the pipe, and it follows a __________ relationship.
A Logarithmic
B Parabolic
C Hyperbolic
D Linear
The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonion fluid in a circular pipe is
A 0.5
B 1
C 2
D 0.66
A Newtonion liquid (ρ = density, μ = viscosity) is flowing with velocity v in a tube of diameter 'D'. Let Δp be the pressure drop across the length 'L'. For a laminar flow, Δp is proportional to
A L ρv²/D
B L μ;V/D²
C D ρv²/L
D Μ V/L
For turbulent flow of newtonion fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is
A 0.5
B 1
C 0.66
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
A 4000
B 2100
C 1500
D 3000
For the laminar flow of a fluid in a circular pipe of radius R, the Hagen-Poisseule equation predicts the volumetric flow rate to be proportional to
A R
B R2
C R4
D R0.5
The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)
A $${\omega ^2} \times {\text{OQ}}$$
B $${\omega ^2} \times {\text{OQ}}\sin \theta $$
C $${\omega ^2} \times {\text{OQ}}\cos \theta $$
D $${\omega ^2} \times {\text{OQtan}}\theta $$
For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance 'd' measured from the wall of the pipe and the friction velocity 'v', and it follows a __________ relationship.
A Logarithmic
B Linear
C Hyperbolic
D Parabolic
Power required for mixing Newtonion fluids is a function of the
A Speed of impeller, diameter of impeller & viscosity
B Density & viscosity of fluid only
C Density of fluid, viscosity of fluid & impeller dia only
D None of these
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

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