Answer :
Final answer:
Both Technician A and B are correct. A dial indicator is commonly known as a dial gauge, and straight edges are typically made from hardened steel to ensure perfect straightness for accurate measurements.
Explanation:
The question is regarding the nomenclature of tools used in precision measurement and the material characteristics of common engineering tools.
Technician A is correct; a dial indicator is often referred to as a dial gauge. These tools are used for precise measurement in engineering tasks to ensure accuracy. They can measure small distances or angles and are essential for tasks that require a high degree of precision.
Technician B is also correct. Straight edges are typically made from hardened steel and are finely machined to ensure that the edge is as straight as possible. This allows for accurate checks of flatness and straightness in various workpieces and is vital in the fields of metalworking, woodworking, and machining.
Whether inches, centimeters, or millimeters are used as the unit of measurement, the ruler is the tool that will work best. Also, considering precision, a tool that provides measurements in millimeters will offer more precise readings since more digits are reported in the measurement.
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