Directly proportional

Inversely proportional

4th power

None of these

A. Directly proportional

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

Geometric similarity

Kinematic similarity

Dynamic similarity

None of these

4

6

8

12

Centrifugal pump

Mixed flow pump

Axial flow pump

Any one of the above

Same quantity of liquid

0.75 Q

Q/0.75

1.5 Q

Impeller diameter

Speed

Fluid density

Both (A) and (B) above

Directly as the air or gas density

Inversely as square root of density

Inversely as density

As square of density

Causes noise and vibration of various parts

Reduces the discharge of a turbine

Causes sudden drop in power output and efficiency

All of the above

Installing the turbine below the tail race level

Using stainless steel runner of the turbine

Providing highly polished blades to the runner

All of the above

Slow speed with radial flow at outlet

Medium speed with radial flow at outlet

High speed with radial flow at outlet

High speed with axial flow at outlet

An axial flow

An inward flow

An outward flow

A mixed flow

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

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

Low head

High head

High head and low discharge

Low head and high discharge

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

Friction loss

Cavitations

Static head

Loss of kinetic energy

Fourneyron turbine

Journal turbine

Thomson's turbine

Pelton wheel

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

Hydraulic ram

Hydraulic intensifier

Hydraulic torque converter

Hydraulic accumulator

Tangential flow impulse turbine

Inward flow impulse turbine

Outward flow impulse turbine

Inward flow reaction turbine

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

Rotational flow

Radial

Forced spiral vortex flow

Spiral vortex flow

10° to 15°

15° to 20°

20° to 25°

25° to 30°

The water flows parallel to the axis of the wheel

The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel

The water enters the wheel at the outer periphery and then flows towards the centre of the wheel

The flow of water is partly radial and partly axial

Directly proportional to N

Inversely proportional to N

Directly proportional to N²

Inversely proportional to N²

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

Centrifugal pump

Reciprocating pump

Jet pump

Air lift pump

Directly proportional to N

Inversely proportional to N

Directly proportional to N²

Inversely proportional to N²

39.2 %

48.8 %

84.8 %

88.4 %

10 r.p.m.

20 r.p.m.

40 r.p.m.

80 r.p.m.