Accumulating oil
Supplying large quantities of oil for very short duration
Generally high pressures to operate hydraulic machines
Supplying energy when main supply fails
D. Supplying energy when main supply fails
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
Velocity of flow at inlet to the theoretical jet velocity
Theoretical velocity of jet to the velocity of flow at inlet
Velocity of runner at inlet to the velocity of flow at inlet
None of the above
Propeller turbine
Francis turbine
Impulse turbine
None of the above
0 to 4.5
10 to 100
80 to 200
250 to 300
Potential Energy
Strain Energy
Kinetic energy
None of these
Equal to
1.2 times
1.8 times
Double
Centrifugal pump
Mixed flow pump
Axial flow pump
Any one of the above
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
Normal speed
Unit speed
Specific speed
None of these
Two
Four
Six
Eight
L.A.N
2 L.A.N
(L.A.N)/60
(2 L.A.N)/60
The suction pressure should be high
The delivery pressure should be high
The suction pressure should be low
The delivery pressure should be low
Product
Difference
Sum
None of these
Decreases
Increases
Remain same
None of these
Propeller turbine
Francis turbine
Impulse turbine
Any one of the above
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
Reciprocating pump
Jet pump
Air lift pump
At the top
At the bottom
At the canter
From sides
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
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
40 %
50 %
60 %
80 %
Pelton wheel
Francis turbine
Kaplan turbine
None of these
Volute casing
Volute casing with guide blades
Vortex casing
Any one of these
Low head of water
High head of water
Medium head of water
High discharge
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
Casing
Delivery pipe
Suction pipe
Impeller
0.26
0.36
0.46
0.56
High discharge
High head
Pumping of viscous fluids
High head and high discharge
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
To store pressure energy which may be supplied to a machine later on
To increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure
To lift larger load by the application of a comparatively much smaller force
All of the above