Tools
Materials
Measurements
Safety
Blueprint Reading
100

This machine tool removes material by spinning a workpiece against a cutting tool.

What is a lathe

100

What is mild steel primarily composed of?

What is iron with a small amount of carbon?

100

What tool is used to measure inside diameters?

What is an inside micrometer or telescoping gauge with an outside micrometer?

100

Name three pieces of PPE used in a machining lab.

What are safety glasses, hearing protection, and steel-toed boots?

100

What does the abbreviation “Ø” represent on a print?

What is diameter?

200

What's the difference between HSS and carbide tools?

What is HSS is cheaper and tougher, while carbide stays sharp longer and cuts harder materials?

200

Which material is the hardest: aluminum, brass, or titanium?

What is titanium?

200

What unit is commonly used in micrometers?

What are thousandths of an inch 

200

This device must always be within reach when using machines that pose a risk of entanglement or injury.

What is the emergency stop button (E‑stop)

200

What does a hidden line represent?

What is a feature not visible from the current view?

300

What tool holds a drill bit in a milling machine?

What is a drill chuck or collet chuck?

300

What does "work hardening" mean?

What is when metal becomes harder and stronger as it is deformed

300

This tool is used to measure outside diameters with high accuracy.

What is a micrometer

300

Why shouldn’t gloves be worn around rotating machinery

What is they can get caught and pull your hand into the machine?

300

How are angles typically shown on blueprints?

What is in degrees with angle symbols (e.g., 45°)?

400

What’s the name of the tool used to cut external threads?

What is a die?

400

Which metal is non-ferrous and highly corrosion-resistant?

What is aluminum or stainless steel ?

400

This means the difference between the maximum and minimum acceptable dimensions.

What is tolerance?

400

Describe a lockout/tagout procedure.

What is a safety procedure to ensure equipment is powered off and cannot be turned on while maintenance is performed?

400

What does the term “datum” refer to?

What is a reference point or surface for measurements?

500

What is a fly cutter and where is it used?

What is a single-point cutting tool used in milling to produce flat surfaces?

500

What is the Brinell hardness test used to determine?

What is a material's resistance to indentation (hardness)?

500

Explain the difference between accuracy and precision.

What is accuracy is how close to the true value, precision is repeatability?

500

This must always be removed from a chuck before starting a lathe.

What is the chuck key?

500

What does a surface finish symbol indicate?

What is the required smoothness of a machined surface?

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