Answer :
Final answer:
The correct tool for measuring ring gear backlash is a dial indicator, as it provides precise readings required to measure the small movements between gear teeth.
Explanation:
The tool used to measure ring gear backlash is a dial indicator. Ring gear backlash refers to the amount of play between the teeth of the gear, which is crucial for proper gear operation. Measuring this backlash accurately requires a precise instrument. A dial indicator is capable of capturing small movements and is essential for this measurement process, providing readings in very fine increments.
Although micrometers and vernier calipers are precise tools used for measuring, they do not match the necessary application for measuring backlash. Similarly, a feeler gauge, while useful for measuring gap widths, is not the correct tool for measuring the play in a ring gear setup.
In summary, a dial indicator is the appropriate choice for backlash measurement in gears due to its ability to detect minute movements, ensuring the proper functioning of the gear assembly.