Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
C. Inversely as density
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
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 N
Inversely proportional to N
Directly proportional to N²
Inversely proportional to N²
Power produced by the turbine to the energy actually supplied by the turbine
Actual work available at the turbine to the energy imparted to the wheel
Workdone on the wheel to the energy (or head of water) actually supplied to the turbine
None of the above
Increases
Decreases
Remain unaffected
First increases and then decreases
Horizontal
Nearly horizontal
Steep
First rise and then fall
Girad turbine
Turgo turbine
Pelton wheel
Kaplan turbine
Centrifugal pump
Reciprocating pump
Jet pump
Airlift pump
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
0.25 kW
0.75 kW
1.75 kW
3.75 kW
Propeller turbine
Francis turbine
Impulse turbine
Any one of the above
The wheel runs entirely by the weight of water
The wheel runs entirely by the impulse of water
The wheel runs partly by the weight of water and partly by the impulse of water
None of the above
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
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
Waste valve closes suddenly
Supply pipe is long
Supply pipe is short
Ram chamber is large
To run the turbine full
To prevent air to enter the turbine
To increase the head of water by an amount equal to the height of the runner outlet above the tail race
To transport water to downstream
Increases with increase in pressure
Decreases with increase in pressure
More or less remains constant with increase in pressure
Unpredictable
0.26
0.36
0.46
0.56
Medium head application from 24 to 180 m
Low head installation up to 30 m
High head installation above 180 m
All types of heads
High initial and maintenance cost
Lower discharge
Lower speed of operation
Necessity of air vessel
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
Diameter of jet to the diameter of Pelton wheel
Velocity of jet to the velocity of Pelton wheel
Diameter of Pelton wheel to the diameter of jet
Velocity of Pelton wheel to the velocity of jet
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
Hydraulic
Mechanical
Overall
None of these
Greater than 15°
Greater than 8°
Greater than 5°
Less than 8°
Strain
Pressure
Kinetic
None of these
Potential Energy
Strain Energy
Kinetic energy
None of these
Slow speed with radial flow at outlet
Medium speed with radial flow at outlet
High speed with radial flow at outlet
High speed with axial flow at outlet
Suction pipe is short and pump is running at low speeds
Delivery pipe is long and pump is running at high speeds
Suction pipe is short and delivery pipe is long and the pump is running at low speeds
Suction pipe is long and delivery pipe is short and the pump is running at high speeds
Pelton wheel
Kaplan turbine
Francis turbine
None of these