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Which of the following factors does NOT directly contribute to the determination of the size and geometry of a shaft?

  • A.Material of the adjacent components in assembly
  • B.Maximum torque experienced by the shaft
  • C.Maximum bending moment experienced by the shaft
  • D.Rotational speed of the shaft

Answer: A

The material of the adjacent components in the assembly does not directly decide the size and geometry of a shaft. The size is fixed by the maximum torque, the maximum bending moment, and the rotational speed (which affects power and critical speed). So the first option is the factor that does not directly contribute.

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