The centre of buoyancy always coincides with
A.centre of gravity of the body
B.centroid of the volume displaced
C.metacentre
D.None of the above
Category: Fluid Mechanics and Hydraulic Machines Mcqs
When a liquid rotates at a angular velocity above a vertical axis as a rigid body, the pressure intensity varies
A.inversely with radial distance
B.inversely with the square of radial distance
C.directly with radial distance
D.Directly with square of the radial distance
A hydro-electric plant is usually temed as high head plant when the head is
A.more than 5 m
B.more than 15 m
C.more than 25 m
D.more than 35 m
E.more than 45 m
SI unit of viscosity is
A.10 times poise
B.9.81 times poise
C.1/9.81 times poise
D.Equal to poise
E.None of the above
The motion of a fluid in which the fluid mass rotates without the external force is known as
A.Rotary motion
B.Circulatory motion
C.Irrotational motion
D.Free vortex motion
E.Forced vortex motion
Koyna dam is located in
A.Gujrat
B.Karnataka
C.Maharashtra
D.Madhya Pradesh
E.Rajasthan
Select the pressures that are equivalent
A.10 psi, 23.1 ft H2O, 4.91 in. Hg
B.10 psi, 4.33 ft H2O, 20.3 in. Hg
C.10 psi, 20.3 ft H2O, 23.1 in. Hg
D.4.3 psi, 10 ft H2O, 20.3 in. Hg
E.4.33 psi, 10 ft H2O, 8.83 in. Hg
The density of air at 10?C and 1 Mpa abs in SI units is
A.12.31
B.1.231
C.118.4
D.65
E.None of the above
Spouting velocity is
A.Ideal velocity of jet
B.50% of ideal velocity of jet
C.Actual velocity of jet
D.Velocity of jet under some specified conditions
E.None of the above
The unit of specific speed is
A.R.P.M.
B.Metres/sec
C.Dimensionless
D.Any of the above
E.None of the above
