Preview Questions Machinist | Role Specific Skill

Question 1: How does "CNC machine calibration" impact precision in complex machining operations?

Which action should you take?

Choose only one option

Poor calibration introduces errors that propagate through machining, affecting part dimensions and quality

It is unnecessary when the machine has been factory-calibrated and shows no signs of wear

It complicates setup by requiring frequent recalibration based on machine wear

CNC machine calibration ensures that the machine's movements are aligned with the program, improving machining accuracy

Question 2: How does "cutting fluid" influence quality control in machining?

Which action should you take?

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It increases the risk of workpiece contamination

It decreases tool life by causing excessive wear

It reduces heat and friction, ensuring better tool life and surface finish

It slows down the cutting process

Question 3: How does the material's grain structure affect the machining process?

Which action should you take?

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It influences the material's strength, flexibility, and machinability, affecting tool choice and settings

It has no impact on the machining process

It determines the speed of the CNC machine

It affects only the aesthetic appearance of the part

Question 4: In CNC milling, what is the purpose of using "cutter compensation" in the tool offset?

Which action should you take?

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To adjust the cutting speed

To eliminate the need for tool changes during setup

To reduce machine cycle time

To correct tool wear and improve part accuracy

Question 5: How does "non-destructive testing" (NDT) contribute to quality control in machining?

Which action should you take?

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It is unnecessary when parts are simple and do not require detailed internal inspection

NDT allows for the inspection of materials and parts without altering their structure, ensuring internal integrity

NDT increases inspection time and requires additional procedures to ensure accuracy and precision

It complicates quality control by requiring specialized training and equipment for each NDT method

Question 6: How does a CNC machine's ability to perform multi-axis machining impact precision and efficiency?

Which action should you take?

Choose only one option

It allows for more complex geometries and reduces the need for multiple setups

It improves the surface finish but increases tool wear

It reduces the wear and tear on tools during the process

It simplifies the programming and setup process