The anchor-handling vessel to which you are...

Question 1 / 2066636eef28f7522a1c51f6ca

Question 1 of 2066636eef28f7522a1c51f6ca

The anchor-handling vessel to which you are assigned is fitted with reversing reduction gears equipped with airflex pneumatic tire-type friction clutches. To maximize clutch efficiency and to minimize clutch wear, in terms of operating clutch supply air pressure what statement is true?

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🔍 Key Concepts

• Friction clutches and torque transmission – how normal force (clamping force) affects the tendency to slip or grab • Effect of air pressure on an Airflex (pneumatic) clutch – what happens to friction force when pressure is too high vs too low • Manufacturer’s recommended pressure range – why staying near this value matters for wear and smooth engagement

💭 Think About

• Think about what causes a friction clutch to slip: too little or too much clamping force between the friction surfaces? • Now think about what causes a clutch to grab harshly: does that usually come from higher friction force or lower friction force? • Relate air pressure directly to the clamping/holding force in a pneumatic tire-type clutch – when you increase pressure, what happens to the force squeezing the drum?

✅ Before You Answer

• Be clear whether higher air pressure means more or less friction force in a pneumatic clutch • Decide which condition (too much vs too little pressure) would increase the chance of slipping under load • Decide which condition (too much vs too little pressure) would make engagement sudden or harsh (grabbing)

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Question 1 of 20

If the operating clutch supply air pressure is higher than recommended, the clutch will have a tendency to slip. If the operating clutch supply air pressure is lower than recommended, the clutch will have a tendency to grab.

If the operating clutch supply air pressure is maintained either above or below the recommended pressure, the clutch will have a tendency to grab.

If the operating clutch supply air pressure is higher than recommended, the clutch will have a tendency to grab. If the operating clutch supply air pressure is lower than recommended, the clutch will have a tendency to slip.

Question 1 / 2066636eef28f7522a1c51f6ca

Question 1 of 2066636eef28f7522a1c51f6ca

Back

Question 1 of 20

66636eef28f7522a1c51f6ca

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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