[2(Vr - v) v]/ Vr²
2(Vr + v) v]/ Vr²
[(Vr - v) v]/ Vr
[(Vr + v) v]/ Vr
A. [2(Vr - v) v]/ Vr²
Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
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
Speed and power developed
Discharge and power developed
Speed and head of water
Speed, power developed and head of water
Directly proportional
Inversely proportional
4th power
None of these
Ratio of diameters
Square of ratio of diameters
Inverse ratio of diameters
Square of inverse ratio of diameters
Tangential flow impulse turbine
Inward flow impulse turbine
Outward flow impulse turbine
Inward flow reaction turbine
2V/(vr - v)
2V/(vr + v)
V/(vr - v)
V/(vr + v)
Hydraulic
Mechanical
Overall
None of these
Pelton wheel
Francis turbine
Kaplan turbine
None of these
Flow vs. swept volume
Pressure in cylinder vs. swept volume
Flow vs. speed
Pressure vs. speed
Centrifugal pump
Axial flow pump
Mixed flow pump
Reciprocating pump
Double
Three times
Four times
Five times
Equal to
1.2 times
1.8 times
Double
10 r.p.m.
20 r.p.m.
40 r.p.m.
80 r.p.m.
Directly proportional to N
Inversely proportional to N
Directly proportional to N²
Inversely proportional to N²
Normal speed
Unit speed
Specific speed
None of these
102 watts
75 watts
550 watts
735 watts
Delivers unit discharge under unit head
Delivers unit discharge under unit speed
Develops unit power under unit head
Develops unit power under unit speed
Casing
Delivery pipe
Suction pipe
Impeller
Decreases
Increases
Remain same
None of these
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.
Horizontal
Nearly horizontal
Steep
First rise and then fall
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
waV/2g × sinθ
waV/g × sinθ
waV²/2g × sin2θ
waV²/g × sinθ
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
To store pressure energy which may be supplied to a machine later on
To increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure
To lift larger load by the application of a comparatively much smaller force
All of the above
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
Ratio of actual discharge to the theoretical discharge
Sum of actual discharge and the theoretical discharge
Difference of theoretical discharge and the actual discharge
Product of theoretical discharge and the actual discharge
Pelton wheel
Kaplan turbine
Francis turbine
None of these
0.26
0.36
0.46
0.56