The oil platform supply vessel to which you...

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Question 1 of 2066636eef28f7522a1c51fadf

The oil platform supply vessel to which you are assigned is fitted with main propulsion engines driving through pneumatic airflex clutches as shown in the illustration. What statement is true concerning this type of clutch? Illustration MO-0141

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Question 1 of 20

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🔍 Key Concepts

• Study how the friction block moves when clutch air is applied in view B of the illustration. • Understand that expanding vs constricting describes what the friction element itself does when the clutch engages. • Identify whether the friction surface is acting against the clutch drum or the clutch gland when engaged.

💭 Think About

• In view A (disengaged), where is the clearance gap, and what parts are NOT touching? In view B (engaged), which part has moved to close that gap? • When the clutch tire inflates, does it push the friction block outward or inward relative to the drum? How does that motion relate to the terms expanding or constricting? • Trace the power flow from the engine (clutch gland) to the load (clutch drum). Which surfaces must be in contact to transmit torque?

✅ Before You Answer

• Verify whether the friction block ends up in contact with the clutch drum or with the clutch gland when air is applied. • Confirm whether the friction element’s motion causes its effective diameter to increase (expand) or decrease (constrict) during engagement. • Double‑check the labels in the illustration (drum, gland, tire, friction block) so you match the wording in the choices to the correct components.

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