tanθ = a/g
tanθ = 2 a/g
tanθ = a/2g
tanθ = a2/2g
A. tanθ = a/g
Does not change
Decreases
Increases
None of these
Steady uniform flow
Steady non-uniform flow
Unsteady uniform flow
Unsteady non-uniform flow
Double
Four times
Eight times
Sixteen times
Cohesion
Adhesion
Viscosity
Surface tension
Velocity of approach
Lower critical velocity
Higher critical velocity
None of these
10-2 m2/s
10-3 m2/s
10-4 m2/s
10-6 m2/s
Minimum
Maximum
Zero
Could be any value
Reynold's number
Froude's number
Mach number
Euler's number
0.62
0.76
0.84
0.97
Directly
Inversely
Both A and B
None of these
14π R1/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)
14π R5/2/15Cd × a √(2g)
14π R7/2/15Cd × a √(2g)
Sub-sonic velocity
Super-sonic velocity
Lower critical velocity
Higher critical velocity
Higher than the surface of liquid
The same as the surface of liquid
Lower than the surface of liquid
Unpredictable
Circular
Square
Rectangular
Trapezoidal
Steady
Unsteady
Both A and B
None of these
5 mm
10 mm
20 mm
30 mm
Low pressure
High pressure
Moderate pressure
Vacuum pressure
Fluids are capable of flowing
Fluids conform to the shape of the containing vessels
When in equilibrium, fluids cannot sustain tangential forces
When in equilibrium, fluids can sustain shear forces
Mass of liquid displaced
Viscosity of the liquid
Pressure of the liquid displaced
Depth of immersion
C.G. of body
Center of pressure
Center of buoyancy
Metacentre
Straight line
Parabolic curve
Hyperbolic curve
Elliptical
Newton's law of motion
Newton's law of viscosity
Pascal' law
Continuity equation
4wd/σ cosα
σ cosα/4wd
4σ cosα/wd
wd/4σ cosα
Less than unity
Unity
Between 1 and 6
None of these
It gives maximum discharge for a given cross-sectional area and bed slope
It has minimum wetted perimeter
It involves lesser excavation for the designed amount of discharge
All of the above
Bottom surface of the body
C.G. of the body
Metacentre
All points on the surface of the body
Constant
Variable
Zero
Zero under limiting conditions
0.855 a.√(2gH)
1.855 aH.√(2g)
1.585 a.√(2gH)
5.85 aH.√(2g)
Shear stress to shear strain
Increase in volume to the viscosity of fluid
Increase in pressure to the volumetric strain
Critical velocity to the viscosity of fluid
The horizontal component of the hydrostatic force on any surface is equal to the normal force on the vertical projection of the surface
The horizontal component acts through the center of pressure for the vertical projection
The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area
The vertical component passes through the center of pressure of the volume