Answer :
Final answer:
A dial indicator must be mounted to a steady surface and firmly attached to a holding device to ensure accurate measurements, similar to obtaining precise liquid volume readings by aligning one's eye with the meniscus.
Explanation:
When using a dial indicator, it is crucial to mount it to a steady surface and securely attach it to a holding device. Ensuring that the dial indicator is firmly fixed prevents any movement that could lead to inaccurate measurements. Just like when measuring the volume of liquid in a graduated cylinder, where one must be on eye-level with the meniscus, precision in the placement of a dial indicator is key for obtaining accurate readings.
