Define the following terms:
a. Gas turbine
b. Hydraulic turbine
c. Reactive turbine
d. Steam turbine
e. Wind turbine
f. Impulse turbine
g. Casing
h. Governor
i. Fixed blade
j. Moving blade
k. Nozzle
l. Overspeed trip mechanism
m. Rotor
a. A gas turbine is a device that uses the combustion of natural gas to spin the turbine rotor.
b. A hydraulic turbine is a device that is operated or affected by a liquid (for example, a water wheel).
c. A reactive turbine is a device that uses a reactive force of pressure or mass of the motive fluid to turn a rotor it is an example of Newton’s third law of motion.
d. A steam turbine is a device that is driven by the pressure of high-velocity steam.
e. A wind turbine is a device that converts wind energy into mechanical or electrical energy.
f. An impulse turbine is a device that uses directed flow of high velocity fluid against rotor blades to move the rotor; it is an example of Newton’s second law of motion.
g. Casing is a housing component of a turbine that holds all moving parts (including the rotor, bearings, and seals) and is stationary.
h. A governor is a device used to control the speed of a piece of equipment, such as a turbine.
i. A fixed blade is a blade inside a turbine, attached to the casing, that determines the direction of the power fluid.
j. Moving blades are rotor blades that are connected to the shaft and that move or rotate when a power fluid is applied.
k. A nozzle is a component used to drive the blades or rotor of the turbine. The nozzle orients and converts the steam or motive fluid from pressure to velocity.
l. An overspeed trip mechanism is an automatic safety device designed to remove power from a rotating machine if it reaches a preset trip speed.
m. A rotor is a rotating member of a motor or turbine that is connected to the shaft.
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