Time left =
1 In order to have maximum power from a Pelton turbine, the bucket speed must be
2
Two pipes of lengths 2500 m each and diameters 80 cm and 60 cm respectively, are connected in parallel. The coefficient of friction for each pipe is 0.006 and the total flow is 250 litres/s. The rates of flow in the pipes are nearly
3
The property by virtue of which a liquid opposes relative motion between its different layers is called
4
Euler's dimensionless number relates the following
5
The value of bulk modulus of a fluid is required to determine
6
In one dimensional flow, the flow
7
The pressure of the liquid flowing through the divergent portion of a Venturimeter
8
In an immersed body, centre of pressure is
9
The torque required to overcome viscous resistance of a collar bearing is (where R1 and R2 = External and internal radius of collar)
10
The kinematic viscosity is the
11
The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy 's coefficient of friction for pipe, and l = Length of pipe )
12
The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)
13
Mach number is significant in
14
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)
15
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by