Level 3 Engineering Fitter Practice Exam

What is workholding and give two examples.

Tools used to measure the workpiece; examples: micrometers. Methods to secure the workpiece during machining; examples: chucks and vises. Techniques for marking out features; examples: dividers and pencils. Devices for applying lubricant; examples: oils and greases.

Correct Answer:

Methods to secure the workpiece during machining; examples: chucks and vises.

Explanation:

Workholding is the method of securing the workpiece during machining so it stays in the correct position and orientation under cutting forces. It provides the rigidity and stability needed for accurate dimensions, good surface finish, and safe operation. Two common examples are chucks, which grip the workpiece on a rotating spindle in turning, and vises, which clamp the workpiece to a machine table in milling. Other tools like micrometers measure, marking tools lay out features, and lubricants reduce friction; those serve measurement, marking, or lubrication roles and do not hold the workpiece during cutting.

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