Answer :
Final answer:
The tool used to check input shaft endplay is a Dial Indicator. It measures small distances or displacements. Other tools mentioned have different uses in mechanical engineering.
Explanation:
The tool used to check input shaft endplay or the maximum and minimum axial (longitudinal) movement of the input shaft in a mechanical system is a) a Dial Indicator.
A Dial Indicator is a precise measurement device that can measure small distances or displacement. The Dial Indicator's plunger moves in line with the object being measured, providing a reading on the dial, scaled usually in 0.001 inch or 0.01mm increments.
Each of the tools mentioned in the question have important uses in mechanical engineering, but in the case of measuring input shaft endplay, we use Dial Indicator. A Torque Wrench is generally used to measure or ensure a specific torque when tightening bolts or nuts. A Tachometer is primarily used to measure the rotation speed of a shaft or disk in a motor or other machine. Vernier caliper is used to measure distance with high precision, typically for small objects or in applications where high precision is needed.
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