Answer :
Final answer:
Both Technician A and Technician B are correct. A dial indicator can be used to measure the gap or clearance between two components and the cylinder's taper.
Explanation:
In terms of the use of a dial indicator, both Technician A and Technician B are correct. Technician A is right because a dial indicator is indeed used to measure the gap or clearance between two components. For example, it can be used to measure the space between a machine table and a workpiece. On the other hand, Technician B is also correct because a dial indicator can be used to determine the taper of a cylinder in an engine block. It measures the difference in the cylinder's diameter at different points, thus identifying the taper.
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