What device is used to produce power and to rotate shaft-driven equipment such as pumps, compressors, and electrical generators?
A) Turbine
B) Trip valve
C) Throttle valve
D) Nozzle
Answer: A
Explanation: A) Correct. Turbines are devices that are used to produce power and to rotate shaft-driven equipment such as pumps, compressors, and electrical generators.
B) Incorrect. A trip valve is a device that can be closed quickly (tripped) to stop the flow of steam to a turbine.
C) Incorrect. A throttle valve is a device, or series of devices depending on turbine power that can be opened or closed slowly (throttled) to control steam flow to the turbine.
D) Incorrect. A nozzle is the device in the turbine entry piping that converts pressure to velocity and directs the flow of steam to the turbine blades.
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