CMRT Practice Test 2025 – Complete Exam Prep

Question: 1 / 400

What is meant by end float or end play in a machine?

The vertical alignment of a shaft

The axial play of the shafts within the machines

End float or end play refers to the axial movement of the shafts within machinery. This term describes the slight amount of axial clearance or movement that a shaft has in the direction parallel to its length, which is essential for accommodating thermal expansion, vibrations, and other factors that can affect the machine's operation.

Having an appropriate amount of end float is crucial because too much axial play can lead to misalignment, excessive wear, or even failure of the mechanical components. This concept is particularly important in rotating machinery where ensuring that parts maintain proper spacing and alignment under operational conditions is vital for reliability and efficiency. The other options do not relate directly to this specific aspect of mechanical movement; thus, they do not accurately capture the meaning of end float or end play.

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The overall length of the shaft

The rotational speed of the machinery

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