Propeller turbine
Francis turbine
Impulse turbine
None of the above
A. Propeller turbine
Decreases
Increases
Remain same
None of these
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
Discharge a diameter
Head a speed²
Head a diameter
Power a speed⁴
Low head
High head
High head and low discharge
Low head and high discharge
Flow vs. swept volume
Pressure in cylinder vs. swept volume
Flow vs. speed
Pressure vs. speed
P/ √H
P/ H
P/ H3/2
P/ H²
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
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
39.2 %
48.8 %
84.8 %
88.4 %
2V/(vr - v)
2V/(vr + v)
V/(vr - v)
V/(vr + v)
(D/2d) + 5
(D/2d) + 10
(D/2d) + 15
(D/2d) + 20
Horizontal
Nearly horizontal
Steep
First rise and then fall
Pelton wheel
Francis turbine
Kaplan turbine
None of these
(w Hm) / (Q × ηo)
(w Hm Q) / ηo
(w Q) / (Hm × ηo)
(w Q ηo) / Hm
Centrifugal pump
Reciprocating pump
Jet pump
Airlift pump
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
Propeller turbine
Francis turbine
Impulse turbine
Any one of the above
L.A.N
2 L.A.N
(L.A.N)/60
(2 L.A.N)/60
Smoothen the flow
Reduce suction head
Increase delivery head
Reduce acceleration head
Directly as the air or gas density
Inversely as square root of density
Inversely as density
As square of density
Pelton wheel
Kaplan turbine
Francis turbine
None of these
Straight
Bent forward
Bent backward
Radial
[2(Vr - v) v]/ Vr²
2(Vr + v) v]/ Vr²
[(Vr - v) v]/ Vr
[(Vr + v) v]/ Vr
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
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
The reaction turbines are used for low head and high discharge.
The angle of taper on draft tube is less than 8°.
An impulse turbine is generally fitted slightly above the tail race.
A Francis turbine is an impulse turbine.
Two
Four
Six
Eight
Propeller turbine
Francis turbine
Impulse turbine
None of the above
Geometric similarity
Kinematic similarity
Dynamic similarity
None of these