The governor for an emergency diesel...

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Question 1 of 2066636eef28f7522a1c51fc6f

The governor for an emergency diesel generator is shown in the illustration. When a large change in load results in a change in engine speed, which of the parts listed will be the FIRST governor component to react to the change in load? Illustration MO-0094

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Question 1 of 20

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🔍 Key Concepts

• Centrifugal governor operation – how speed change affects rotating weights and linked parts • Sequence of motion – which part is mechanically closest to the rotating shaft and feels speed change first • Difference between automatic response parts (speed sensing) and manual adjustment parts (speed setting lever)

💭 Think About

• Trace the path of motion starting from the engine shaft: which part in this drawing is directly driven by shaft speed, and which of the labeled parts 7–10 is connected next in line? • Ask yourself which labeled part would move only when an operator changes the speed setting, versus which will move on its own when speed changes. • Consider a sudden decrease in speed (from a heavy load): which internal element must shift first to signal the governor to increase fuel flow?

✅ Before You Answer

• Identify which of parts 7–10 is part of the speed-sensing mechanism (linked to the flyweights/rotating assembly), not the external control lever. • Confirm which part among 7–10 primarily transmits motion from the flyweights upward toward the speeder spring and pilot valve. • Verify from the illustration which of these parts is constrained by the spring and which is the first free-moving member when centrifugal force on the flyweights changes.

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