Power produced by the turbine to the energy actually supplied by the turbine
Actual work available at the turbine to 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
C. Workdone on the wheel to the energy (or head of water) actually supplied to the turbine
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
102 watts
75 watts
550 watts
735 watts
Geometric similarity
Kinematic similarity
Dynamic similarity
None of these
Net head
Absolute velocity
Blade velocity
Flow
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
Have identical forces
2V/(vr - v)
2V/(vr + v)
V/(vr - v)
V/(vr + v)
Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
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
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
Smoothen flow
Reduce acceleration to minimum
Increase pump efficiency
Save pump from cavitations
Centrifugal pump
Axial flow pump
Mixed flow pump
Reciprocating pump
Low head
High head
High head and low discharge
Low head and high discharge
Directly proportional to N
Inversely proportional to N
Directly proportional to N²
Inversely proportional to N²
Lift and resultant force
Drag and resultant force
Lift and tangential force
Lift and drag
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
0 to 4.5
10 to 100
80 to 200
250 to 300
Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
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
Propeller turbine
Francis turbine
Impulse turbine
Any one of the above
175.4 r.p.m.
215.5 r.p.m.
241.5 r.p.m.
275.4 r.p.m
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
Smoothen the flow
Reduce suction head
Increase delivery head
Reduce acceleration head
Low velocity
High velocity
Low pressure
High pressure
0.25 kW
0.75 kW
1.75 kW
3.75 kW
Decreases
Increases
Remain same
None of these
Propeller turbine
Francis turbine
Impulse turbine
None of the above
High initial and maintenance cost
Lower discharge
Lower speed of operation
Necessity of air vessel
(N√Q)/H2/3
(N√Q)/H3/4
(N√Q)/H
(N√Q)/H5/4