GATE ME: Fluid Mechanics & Fluid Machinery Champion Quiz 5

Pelton Wheel is:

What has features of Francis Turbine?

In order to have maximum power from a Pelton turbine, the bucket speed must be

Match the items in columns I and II.

The blade and fluid velocities for an axial turbine are as shown in the figure.

The magnitude of absolute velocity at entry is 300 m/s at an angle of 65^o to the axial direction, while the magnitude of the absolute velocity at exit is 150 m/s. The exit velocity vector has a component in the downward direction. Given that the axial (horizontal) velocity is tha same at entry and exit, the specific work (in kJ/kg) is _____

In the velocity diagram shown below, u = blade velocity, C = absolute fluid velocity and w = relative velocity of fluid and the subscripts 1 and 2 refer to inlet and outlet. This diagram is for

The water jet exiting from a stationary tank through a circular opening of diameter 300 mm impinges on a rigid wall as shown in the figure. Neglect all minor losses and assume the water level in the tank to remain constant. The net horizontal force experienced by the wall is_____kN.
Density of water is 1000 kg/m³.
Acceleration due to gravity g = 10 m/s².

Considering the variation of static pressure and absolute velocity in an impulse stream turbine, across one row of moving blades

A single-stage impulse turbine with a diameter of 120 cm runs at 3000 rpm. If the blade speed ration is 0.42, then, the inlet velocity of steam will be

The manometer as shown in figure is joined with pressurised vessel at two points. What will be the expression of obtaining a pressure difference, if pressure difference between these two points be measured?