Question 150General Subjects - Assistant Engineer70% to pass
Concerning governor speed droop, what statement is true?
AI Explanation
The correct answer is B) If speed droop is permanent, the prime mover's final speed is different for each amount of loading.
This is correct because permanent speed droop refers to a steady-state condition where the prime mover's final speed will be lower for higher loads. This is due to the design of the governor, which intentionally allows the speed to drop as the load increases to help maintain stability and share the load properly. If the speed droop were temporary, the final speed would eventually return to the same value regardless of the load. The other options are incorrect because they do not accurately describe the behavior of a prime mover with permanent speed droop.
Related Questions
#148 Which term represents the ability of a speed control governor to maintain prime mover speed without hunting? #149 What is meant by the term "dead band" as it applies to prime mover speed control governors? #151 Which of the following statements is true concerning the application for an isochronous governor? #152 Which term represents how rapidly a speed control governor will complete a corrective action as the result of a load change? #153 Suppose a prime mover rotates at a steady speed of 900 rpm at rated full load and rotates at a steady speed of 1000 rpm at no load. Assuming that no adjustments have been made to the governor speed control setting, what is the speed regulation of the prime mover expressed in percent?