Slip of a reciprocating pump is defined as the

The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

In an impulse turbine, the jet of water impinges on the bucket with a low velocity and after flowing over the vanes, leaves with a high velocity.

The efficiency of a Pelton wheel working under constant head __________ with the increase in power.

The discharge of a centrifugal pump working under constant head __________ with the speed.

The efficiency of a centrifugal pump will be maximum when the blades are bent backward.

The maximum number of jets, generally, employed in an impulse turbine without jet interference are

A Francis turbine is used when the available head of water is

Discharge of a centrifugal pump is

For centrifugal pump impeller, the maximum value of the vane exit angle is

Which of the following turbine is preferred for 0 tom head of water?

The capacity of a hydraulic accumulator is generally specified as the maximum amount of energy stored.

Which of the following turbine is preferred for 0 tom head of water?

Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

Multi-stage centrifugal pumps are used to

Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

In a reciprocating pump, air vessels are fitted to the suction pipe and delivery pipe close to the cylinder of the pump.

The specific speed fromtor.p.m. of a centrifugal pump indicates that the pump is

A Pelton wheel developskW under a head ofmetres while running atr.p.m. and discharginglitres of water per second. The unit power of the wheel is

In a reaction turbine, the pressure head of water, while flowing over the vanes, is converted into kinetic head before leaving the wheel.

The speed ratio of a Francis turbine is defined as the ratio of the theoretical jet velocity to the peripheral speed at inlet.

The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is

In a reaction turbine, the draft tube is used

Delivery head of water of a centrifugal pump is inversely proportional to diameter of its impeller.

The specific speed of a centrifugal pump, deliveringlitres of water per second against a head ofmetres atr.p.m., is

Delivery head of water of a centrifugal pump is inversely proportional to diameter of its impeller.

Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and V_f = Velocity of flow at inlet)

A hydraulic coupling belongs to the category of

The static head of a centrifugal pump is equal to the __________ of suction head and delivery head.

Manometric head, in case of a centrifugal pump, is equal to