Allied & ICAR Exam Bank • ALLIED_2799 MCQ • 1 Mark

Section 2: Farm Machinery

Machine Design

Subtopic: Overload safety devices used in farm machinery

Question Statement:

A radial pin (jaw/star) ratchet clutch used on manure spreaders or round balers provides torque limiting by:

Options:

  • (A) Spring-loaded teeth riding out of detent pockets and ratcheting with an audible click
  • (B) Melting an internal fuse link
  • (C) Fluid cavitation in hydraulic reservoir
  • (D) Magnetic eddy current braking

Answer Key:

A

Step-by-Step Solution & Explanation

Star ratchet clutches use spring-loaded cams that disengage with an audible warning sound upon reaching overload torque.
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