Pelton wheel
Francis turbine
Kaplan turbine
None of these
B. Francis turbine
Increases
Decreases
Remain unaffected
First increases and then decreases
Two
Four
Six
Eight
Directly proportional to H1/2
Inversely proportional to H1/2
Directly proportional to H3/2
Inversely proportional to H3/2
They have slow speeds
They are suitable even for low water heads
They give constant efficiency, even if the discharge is not constant
All of the above
39.2 %
48.8 %
84.8 %
88.4 %
Greater than 15°
Greater than 8°
Greater than 5°
Less than 8°
Radial
Axial
Centrifugal
Vortex
Casing
Delivery pipe
Suction pipe
Impeller
Rectilinear flow
Radial flow
Free vortex motion
Forced vortex
N√P / H3/2
N√P / H²
N√P / H5/4
N√P / H3
0.26
0.36
0.46
0.56
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
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 as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
102 watts
75 watts
550 watts
735 watts
Waste valve closes suddenly
Supply pipe is long
Supply pipe is short
Ram chamber is large
Q = π.D.Vf
Q = π.b.Vf
Q = π.D.bf.V
Q = D.b.Vf
The centrifugal pump is suitable for large discharge and smaller heads.
The centrifugal pump requires less floor area and simple foundation as compared to reciprocating pump.
The efficiency of centrifugal pump is less as compared to reciprocating pump.
All of the above
Centrifugal pump
Mixed flow pump
Axial flow pump
Any one of the above
Hydraulic
Mechanical
Overall
None of these
Air lift pump
Jet pump
Hydraulic coupling
Hydraulic press
(W/p) × (A/a)
(p/W) × (a/A)
(W/p) × (a/A)
(p/W) × (A/a)
Directly proportional
Inversely proportional
4th power
None of these
Power absorbing machines
Power developing machines
Energy transfer machines
Energy generating machines
Pelton wheel
Francis turbine
Kaplan turbine
None of these
At the top
At the bottom
At the canter
From sides
N/√H
N/H
N/H3/2
N/H²
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
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
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