The follow-up mechanism for the steering...

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Question 1 of 205eccef9cbacbc34ba4d45a31

The follow-up mechanism for the steering gear shown functions to assure the correct rudder position for each corresponding position of the helm. When operating properly, the follow-up mechanism should __________. See illustration GS-0123.

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🔍 Key Concepts

• Follow-up steering system: how the rudder feedback linkage compares actual rudder angle with commanded rudder angle • Rudder error angle: difference between ordered rudder angle and actual rudder position • How variable-stroke main pump output changes as the rudder moves toward the ordered position in a power steering gear

💭 Think About

• As the rudder gets closer to the ordered angle, should the error signal to the pump become larger, smaller, or stay the same? How would that affect the pump stroke? • In a follow-up system, what must happen to the control mechanism exactly at the moment the rudder reaches the commanded angle? Relate this to the stroke of the main pump. • Look at the feedback linkage in the illustration: does it act to increase or to cancel the helm command as the rudder moves toward the ordered position?

✅ Before You Answer

• Be clear on the definition of rudder error angle (ordered minus actual) and how it behaves as the rudder nears the command angle. • Identify which component in the diagram provides rudder position feedback to the control servo and what it does when error goes to zero. • Eliminate any choice that implies a fixed pump stroke regardless of error, since a follow‑up system must change stroke based on error.

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