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
D. All of the above
0.25 kW
0.75 kW
1.75 kW
3.75 kW
Manometric efficiency
Mechanical efficiency
Overall efficiency
Volumetric efficiency
Directly proportional to H1/2
Inversely proportional to H1/2
Directly proportional to H3/2
Inversely proportional to H3/2
Pelton wheel with one nozzle
Pelton wheel with two or more nozzles
Kaplan turbine
Francis turbine
Propeller turbine
Francis turbine
Impulse turbine
None of the above
Diameter
Square of diameter
Cube of diameter
Fourth power of diameter
24.8 r.p.m.
48.2 r.p.m
82.4 r.p.m.
248 r.p.m
Fourneyron turbine
Journal turbine
Thomson's turbine
Pelton wheel
Causes noise and vibration of various parts
Reduces the discharge of a turbine
Causes sudden drop in power output and efficiency
All of the above
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
Horizontal
Nearly horizontal
Steep
First rise and then fall
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
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
Sum
Difference
Product
None of these
39.2 %
48.8 %
84.8 %
88.4 %
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
2V/(vr - v)
2V/(vr + v)
V/(vr - v)
V/(vr + v)
Ratio of diameters
Square of ratio of diameters
Inverse ratio of diameters
Square of inverse ratio of diameters
39.2 %
49.2 %
68.8 %
84.8 %
Volute casing
Volute casing with guide blades
Vortex casing
Any one of these
Centrifugal pump
Reciprocating pump
Air lift pump
Screw pump
(W/p) × (A/a)
(p/W) × (a/A)
(W/p) × (a/A)
(p/W) × (A/a)
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
[wa (V - v)]/2g
[wa (V - v)]/g
[wa (V - v)²]/2g
[wa (V - v²)]/g
0.25 m3/s
0.5 m3/s
1.5 m3/s
2.5 m3/s
One-half
One-third
Two-third
Three-fourth
Double
Three times
Four times
Five times
Normal speed
Unit speed
Specific speed
None of these
Kinetic head
Velocity head
Manometric head
Static head
Propeller turbine
Francis turbine
Impulse turbine
Any one of the above