175.4 r.p.m.
215.5 r.p.m.
241.5 r.p.m.
275.4 r.p.m
C. 241.5 r.p.m.
Give high discharge
Produce high heads
Pump viscous fluids
All of these
10-15°
20-25°
30-40°
50-60°
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
N/√H
N/H
N/H3/2
N/H²
Delivers unit discharge under unit head
Delivers unit discharge under unit speed
Develops unit power under unit head
Develops unit power under unit speed
Increases
Decreases
Remain unaffected
First increases and then decreases
Allow the water to enter the runner without shock
Allow the water to flow over them, without forming eddies
Allow the required quantity of water to enter the turbine
All of the above
Same
0.75 B.H.P.
B.H.P./0.75
1.5 B.H.P.
One-half
One-third
Two-third
Three-fourth
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
Store the energy of water
Increase the pressure of water
To lift water from deep wells
To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height
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
Directly proportional
Inversely proportional
4th power
None of these
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
4
6
8
12
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
(N√Q)/H2/3
(N√Q)/H3/4
(N√Q)/H
(N√Q)/H5/4
Diameter
Square of diameter
Cube of diameter
Fourth power of diameter
2 to 4
4 to 8
8 to 16
16 to 24
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
Decreases
Increases
Remain same
None of these
(D/2d) + 5
(D/2d) + 10
(D/2d) + 15
(D/2d) + 20
Screw pump
Gear pump
Cam and piston pump
Plunger pump
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
Directly proportional to diameter of its impeller
Inversely proportional to diameter of its impeller
Directly proportional to (diameter)² of its impeller
Inversely proportional to (diameter)² of its impeller
Ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
Ratio of the actual work available at the turbine to the energy imparted to the wheel
Ratio of the Work done on the wheel to the energy of the jet
None of the above
Smoothen the flow
Reduce suction head
Increase delivery head
Reduce acceleration head
Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
Lift and resultant force
Drag and resultant force
Lift and tangential force
Lift and drag