Increases
Decreases
Remain unaffected
First increases and then decreases
B. Decreases
Radial
Axial
Centrifugal
Vortex
The suction pressure should be high
The delivery pressure should be high
The suction pressure should be low
The delivery pressure should be low
Propeller turbine
Francis turbine
Impulse turbine
Any one 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
Directly proportional to N
Inversely proportional to N
Directly proportional to N²
Inversely proportional to N²
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
Radially, axially
Axially, radially
Axially, axially
Radially, radially
(D/2d) + 5
(D/2d) + 10
(D/2d) + 15
(D/2d) + 20
Flow vs. swept volume
Pressure in cylinder vs. swept volume
Flow vs. speed
Pressure vs. speed
Impeller diameter
Speed
Fluid density
Both (A) and (B) above
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
Horizontal
Nearly horizontal
Steep
First rise and then fall
0.50 to 0.65
0.65 to 0.75
0.75 to 0.85
0.85 to 0.90
Centrifugal
Axial flow
Reciprocating
Mixed flow
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
waV/2g × sinθ
waV/g × sinθ
waV²/2g × sin2θ
waV²/g × sinθ
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
Centrifugal pump
Mixed flow pump
Axial flow pump
None of the above
One-fourth
One-half
Three-fourth
Double
Closed
Open
Depends on starting condition and flow desired
Could be either open or closed
Rotational flow
Radial
Forced spiral vortex flow
Spiral vortex flow
Product
Difference
Sum
None of these
Normal speed
Unit speed
Specific speed
None of these
102 watts
75 watts
550 watts
735 watts
To break the jet of water
To bring the runner to rest in a short time
To change the direction of runner
None of these
0.25 kW
0.75 kW
1.75 kW
3.75 kW
Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
Have identical forces
39.2 %
49.2 %
68.8 %
84.8 %
Centrifugal pump
Axial flow pump
Mixed flow pump
Reciprocating pump
Pelton wheel
Francis turbine
Kaplan turbine
None of these