A diesel engine is provided with an over...

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Question 1 of 205eccefa1bacbc34ba4d47747

A diesel engine is provided with an over speed throw-out weight shown in the illustration, and is tripping out at too low an RPM. In order to correct this problem, you should __________. See illustration MO-0101.

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🔍 Key Concepts

• Centrifugal overspeed trip action: weights move outward as RPM increases, opposing a spring force. • Relationship between spring compression/tension and the speed at which the trip will activate. • What changing parts like piece #10 (weight) or lock wire adjustments (31, 32, 35) would do to the balance of forces.

💭 Think About

• If the device is tripping at too low an RPM, do you want the weights to move outward more easily, or do you want them to require higher speed to move far enough to trip? • Which component in this drawing directly resists the outward motion of the weight as speed increases? • Think about whether loosening vs tightening that component will raise or lower the RPM at which the centrifugal force overcomes the spring force.

✅ Before You Answer

• Identify which part in the illustration provides the restoring (holding) force against the rotating weight. • Decide which adjustment would increase the RPM required before the trip mechanism can move enough to actuate. • Eliminate any choices that don’t change the balance between centrifugal force and spring force on the overspeed weight.

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