# CTE Resource Center - Verso - Precision Machining Technology I Task 326125417

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Describe the principles and technology of precision measurement operations.

Definition

Description should include
  • determining the concentricity of a turned part to a lathe's spindle
  • inspecting dimensions of a finished part
  • identifying precision transfer tools such as telescoping gauges and adjustable parallels to determine the compliance of a part of selected dimensions
  • reading the following:
    • Micrometer
    • Vernier
    • Dial
    • Electronic calipers
    • Dial indicators

Process/Skill Questions

  • What are the four basic measurements made with a dial caliper?
  • What are the basic operations performed with a combination square?
  • What are the differences between scales and rulers?

Related Standards of Learning

Science

PH.1

The student will plan and conduct investigations using experimental design and product design processes. Key concepts include
  1. the components of a system are defined;
  2. instruments are selected and used to extend observations and measurements;
  3. information is recorded and presented in an organized format;
  4. the limitations of the experimental apparatus and design are recognized;
  5. the limitations of measured quantities are recognized through the appropriate use of significant figures or error ranges;
  6. models and simulations are used to visualize and explain phenomena, to make predictions from hypotheses, and to interpret data; and
  7. appropriate technology including computers, graphing calculators, and probeware is used for gathering and analyzing data and communicating results.

PH.4

The student will investigate and understand how applications of physics affect the world. Key concepts include
  1. examples from the real world; and
  2. exploration of the roles and contributions of science and technology.