M3 CONCEPTS

Question 1

Hydraulic machinery that adds energy to a fluid, resulting in an increase in pressure across the pump.

Answer 1

Pump

Question 2

Hydraulic machinery that extracts energy from the fluid, resulting in a decrease in pressure across the turbine.

Answer 2

Turbine

Question 3

a free jet of water impinges on the revolving element of the machine, which is exposed to atmospheric pressure. Kinetic to mechanical energy.

Answer 3

Impulse-turbine

Question 4

flow takes place under pressure in a closed chamber. Kinetic and pressure head to mechanical energy.

Answer 4

Reaction turbine

Question 5

The impulse turbine is also called a __________________ or a _____________________

Answer 5

tangential water-wheel or a Pelton wheel

Question 6

Reaction turbine include _____________, which are constructed so that water enters the runner radially and then flows towards the center and along a turbine shaft axis.

Answer 6

Francis turbines

Question 7

constructed so that water passes through the propeller blades in an axial direction.

Answer 7

Fixed-blade propeller turbines

Question 8

propeller turbines with adjustable pitch blades that operate in the same range of heads.

Answer 8

Kaplan turbines

Question 9

have a guide vane assembly that is in line with the turbine and contributes to the tubular shape.

Answer 9

Tubular turbines

Question 10

horizontal axial-flow turbines with a turbine runner directly connected to a generator or through a speed-increasing gear box.

Answer 10

Bulb turbines

Question 11

similar to the bulb turbine with the generator mounted on the periphery of the turbine runner blades. Economical choice for heads less than 15 meters.

Answer 11

Rim turbine