0 to 25 m

25 m to 250 m

Above 250 m

None of these

B. 25 m to 250 m

Casing

Delivery pipe

Suction pipe

Impeller

High initial and maintenance cost

Lower discharge

Lower speed of operation

Necessity of air vessel

Discharge a diameter

Head a speed²

Head a diameter

Power a speed⁴

Speed and power developed

Discharge and power developed

Speed and head of water

Speed, power developed and head of water

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

Directly as the air or gas density

Inversely as square root of density

Inversely as density

As square of density

Potential Energy

Strain Energy

Kinetic energy

None of these

Normal speed

Unit speed

Specific speed

None of these

Double

Three times

Four times

Five times

1/√2

1/2

1

√2

Give high discharge

Produce high heads

Pump viscous fluids

All of these

Centrifugal pump

Reciprocating pump

Jet pump

Air lift pump

At the top

At the bottom

At the canter

From sides

The suction pressure should be high

The delivery pressure should be high

The suction pressure should be low

The delivery pressure should be low

Directly proportional to diameter of its impeller

Inversely proportional to diameter of its impeller

Directly proportional to (diameter)² of its impeller

Inversely proportional to (diameter)² of its impeller

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

Inlet of draft rube

Blade inlet

Guide blade

Penstock

Remain same

Increases

Decreases

None of these

Directly proportional to N

Inversely proportional to N

Directly proportional to N²

Inversely proportional to N²

Ratio of diameters

Square of ratio of diameters

Inverse ratio of diameters

Square of inverse ratio of diameters

^{3}/s

^{3}/s

^{3}/s

^{3}/s

waV / 2g

waV / g

waV² / 2g

waV² / g

P/ √H

P/ H

^{3/2}

P/ H²

Have identical velocities

Are equal in size and shape

Are identical in shape, but differ only in size

None of the above

Centrifugal pump

Axial flow pump

Mixed flow pump

Reciprocating pump

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

Waste valve closes suddenly

Supply pipe is long

Supply pipe is short

Ram chamber is large

Kept fully closed

Kept fully open

Irrespective of any position

Kept 50% open

Propeller turbine

Francis turbine

Impulse turbine

Any one of the above

2 to 4

4 to 8

8 to 16

16 to 24