Friction loss
Cavitations
Static head
Loss of kinetic energy
D. Loss of kinetic energy
Lift and resultant force
Drag and resultant force
Lift and tangential force
Lift and drag
Centrifugal
Axial flow
Mixed flow
Reciprocating
Two
Four
Six
Eight
10-15°
20-25°
30-40°
50-60°
Accumulating oil
Supplying large quantities of oil for very short duration
Generally high pressures to operate hydraulic machines
Supplying energy when main supply fails
Straight
Bent forward
Bent backward
Radial
Directly proportional to H1/2
Inversely proportional to H1/2
Directly proportional to H3/2
Inversely proportional to H3/2
At the top
At the bottom
At the canter
From sides
0.26
0.36
0.46
0.56
102 watts
75 watts
550 watts
735 watts
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
Closed
Open
Depends on starting condition and flow desired
Could be either open or closed
(W/p) × (A/a)
(p/W) × (a/A)
(W/p) × (a/A)
(p/W) × (A/a)
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
Screw pump
Gear pump
Cam and piston pump
Plunger pump
Adjustable blades
Backward curved blades
Vaned diffusion casing
Inlet guide blades
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
0 to 25 m
25 m to 250 m
Above 250 m
None of these
Delivers unit discharge under unit head
Delivers unit discharge under unit speed
Develops unit power under unit head
Develops unit power under unit speed
To break the jet of water
To bring the runner to rest in a short time
To change the direction of runner
None of these
Equal to
1.2 times
1.8 times
Double
0.25 kW
0.75 kW
1.75 kW
3.75 kW
Slow speed pump with radial flow at outlet
Medium speed pump with radial flow at outlet
High speed pump with radial flow at outlet
High speed pump with axial flow at outlet
Hydraulic
Mechanical
Overall
None of these
Directly proportional to H1/2
Inversely proportional to H1/2
Directly proportional to H3/2
Inversely proportional to H3/2
Horizontal
Nearly horizontal
Steep
First rise and then fall
Fourneyron turbine
Journal turbine
Thomson's turbine
Pelton wheel
175.4 r.p.m.
215.5 r.p.m.
241.5 r.p.m.
275.4 r.p.m
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
Pelton wheel with one nozzle
Pelton wheel with two or more nozzles
Kaplan turbine
Francis turbine