40 %
50 %
60 %
80 %
B. 50 %
Energy available at the impeller to the energy supplied to the pump by the prime mover
Actual workdone by the pump to the energy supplied to the pump by the prime mover
Energy supplied to the pump to the energy available at the impeller
Manometric head to the energy supplied by the impeller per kN of water
Two
Four
Six
Eight
Velocity of flow at inlet to the theoretical jet velocity
Theoretical velocity of jet to the velocity of flow at inlet
Velocity of runner at inlet to the velocity of flow at inlet
None of the above
10° to 15°
15° to 20°
20° to 25°
25° to 30°
L.A.N
2 L.A.N
(L.A.N)/60
(2 L.A.N)/60
0.15 to 0.3
0.4 to 0.5
0.6 to 0.9
1 to 1.5
Screw pump
Gear pump
Cam and piston pump
Plunger pump
Geometric similarity
Kinematic similarity
Dynamic similarity
None of these
The reaction turbines are used for low head and high discharge.
The angle of taper on draft tube is less than 8°.
An impulse turbine is generally fitted slightly above the tail race.
A Francis turbine is an impulse turbine.
Centrifugal pump
Mixed flow pump
Axial flow pump
Any one of the above
At full load
At which there will be no damage to the runner
Corresponding to maximum overload permissible
At which the turbine will run freely without load
An axial flow
An inward flow
An outward flow
A mixed flow
Geometric similarity
Kinematic similarity
Dynamic similarity
None of these
Centrifugal pump
Axial flow pump
Mixed flow pump
Reciprocating pump
The water flows parallel to the axis of the wheel
The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
The water enters the wheel at the outer periphery and then flows towards the centre of the wheel
The flow of water is partly radial and partly axial
Suction lift + Loss of head in suction pipe due to friction + Delivery lift + Loss of head in delivery pipe due to friction + Velocity head in the delivery pipe
Workdone per kN of water Losses within the impeller
Energy per kN at outlet of impeller Energy per kN at inlet of impeller
All of the above
Friction loss
Cavitations
Static head
Loss of kinetic energy
Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
In an impulse turbine, the water impinges on the buckets with pressure energy.
In a reaction turbine, the water glides over the moving vanes with kinetic energy.
In an impulse turbine, the pressure of the flowing water remains unchanged and is equal to atmospheric pressure.
In a reaction turbine, the pressure of the flowing water increases after gliding over the vanes.
The water flows parallel to the axis of the wheel
The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
The water enters the wheel at the outer periphery and then flows towards the centre of the wheel
The flow of water is partly radial and partly axial
Centrifugal pump
Axial flow pump
Mixed flow pump
Reciprocating pump
waVr /g × (Vr + v)
waVr /g × (Vr - v)
waVr /g × (Vr + v)²
waVr /g × (Vr - v)²
Inlet of draft rube
Blade inlet
Guide blade
Penstock
Directly proportional
Inversely proportional
4th power
None of these
Pelton wheel
Kaplan turbine
Francis turbine
None of these
Greater than 15°
Greater than 8°
Greater than 5°
Less than 8°
Potential Energy
Strain Energy
Kinetic energy
None of these
Radially, axially
Axially, radially
Axially, axially
Radially, radially
Energy available at the impeller to the energy supplied to the pump by the prime mover
Actual workdone by the pump to the energy supplied to the pump by the prime mover
Energy supplied to the pump to the energy available at the impeller
Manometric head to the energy supplied by the impeller per kN of water
Directly proportional to N
Inversely proportional to N
Directly proportional to N²
Inversely proportional to N²