What valve can be opened or closed slowly to control steam flow?
A) Trip valve
B) Steam valve
C) Throttle valve
D) Turbine valve
Answer: C
Explanation: A) Incorrect. A trip valve is a valve that can be closed quickly to stop or start the flow of steam to the turbine.
B) Incorrect. A throttle valve can be opened or closed slowly to control steam flow.
C) Correct. A throttle valve can be opened or closed slowly to control steam flow.
D) Incorrect. A throttle valve can be opened or closed slowly to control steam flow.
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