A Francis turbine is
A.Inward flow reaction turbine
B.Inward flow impulse turbine
C.Outward flow reaction turbine
D.Outward flow impulse turbine
E.None of the above
Category: Fluid Mechanics and Hydraulic Machines Mcqs
An orifice is said to be a large orifice when
A.The cross-section of orifie is not less than 10% of the cross-section of tank
B.An orifice can discharge fluid within 10 minutes
C.The head over the orifice is smaller than its vertical dimensions
The flow in a pipe is laminar if the Reynolds number is
A.Less than 2000
B.Between 2000 and 4000
C.Between 4000 and 6000
D.Equal to 6300
E.Equal to 10000
The foot valve is provided
A.On suction line
B.On delivery line
C.Both suction and delivery line
D.Neither suction nor delivery lines
Layered or bedded rocks having planes of reltively easy separation are called
A.Swelling rocks
B.Seamy rocks
C.Squeezing rocks
D.Stratified rocks
E.Schistos rocks
The eddy viscosity for turbulent flow is
A.Part of dynamic viscosity
B.A property of the fluid
C.Dependent on fluid temperature
D.Dependent on flow
E.Independent of the nature of flow
A perfect gas
A.is incompressible
B.has zero viscosity
C.cannot develop shear stresses
D.has constant specific heats and satisfies PV = nRT.
For hydrodynamically rough boundary the friction coefficient
A.Remains constant
B.Varies with Reynold’s number
C.Depends on relative roughness
D.Depends on Reynolds number, pressure gradient and relative roughness
E.Depends on velocity and relative roughness
The value of n in Manning’s formula for flow through channel is expected to be least in case of
A.Glass surfaces
B.Corrugated metals surface
C.Unfinished cement surface
D.Cement concrete finish
E.Vitrified clay.
In MLT system the dimensions of angular momentum would be
A.MLT-1
B.ML2T
C.ML2T-1
D.ML2T-2
E.MLT-2
