Kinetic head
Velocity head
Manometric head
Static head
C. Manometric head
0.26
0.36
0.46
0.56
Casing
Delivery pipe
Suction pipe
Impeller
Impeller diameter
Speed
Fluid density
Both (A) and (B) above
Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
Have identical forces
Accumulating oil
Supplying large quantities of oil for very short duration
Generally high pressures to operate hydraulic machines
Supplying energy when main supply fails
Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
Remain same
Increases
Decreases
None of these
Discharge a diameter
Head a speed²
Head a diameter
Power a speed⁴
Centrifugal pump
Mixed flow pump
Axial flow pump
Any one of the above
0 to 4.5
10 to 100
80 to 200
250 to 300
0.25 m3/s
0.5 m3/s
1.5 m3/s
2.5 m3/s
No flow will take place
Cavitation will be formed
Efficiency will be low
Excessive power will be consumed
Speed and power developed
Discharge and power developed
Speed and head of water
Speed, power developed and head of water
Slow speed with radial flow at outlet
Medium speed with radial flow at outlet
High speed with radial flow at outlet
High speed with mixed flow at outlet
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
waV/2g × sinθ
waV/g × sinθ
waV²/2g × sin2θ
waV²/g × sinθ
Two cylinders, two rams and a storage device
A cylinder and a ram
Two coaxial rams and two cylinders
A cylinder, a piston, storage tank and control valve
Delivers unit discharge under unit head
Delivers unit discharge under unit speed
Develops unit power under unit head
Develops unit power under unit speed
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
Low head of water
High head of water
Medium head of water
High discharge
10 r.p.m.
20 r.p.m.
40 r.p.m.
80 r.p.m.
Horizontal
Nearly horizontal
Steep
First rise and then fall
Full load speed
The speed at which turbine runner will be damaged
The speed if the turbine runner is allowed to revolve freely without load and with the wicket gates wide open
The speed corresponding to maximum overload permissible
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
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
39.2 %
49.2 %
68.8 %
84.8 %
Fourneyron turbine
Journal turbine
Thomson's turbine
Pelton wheel
0.15 to 0.3
0.4 to 0.5
0.6 to 0.9
1 to 1.5
175.4 r.p.m.
215.5 r.p.m.
241.5 r.p.m.
275.4 r.p.m
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2