CNC Machining: Design Fundamentals - Module 4 Assessment Question Title * 1. Which of these materials have a low coefficient of friction? (2 answers required) ABS PTFE POM PP PVC Next Question Title * 2. Which of the following sentences is correct? (1 answer required) Adding reliefs to sharp corners improves fit Adding reliefs to sharp corners increases the leftover material Adding reliefs to sharp corners requires EDM Adding reliefs to sharp corners eliminate thin features Next Question Title * 3. Breaking complex parts into multiple components... (1 answer required) Increases machining costs and increases assembly costs Increases machining costs and reduces assembly costs Reduces machining costs and increases assembly costs Reduces machining costs and reduces assembly costs Next Question Title * 4. Replacing hard metals with soft metals in CNC machining means... (1 answer required) To increase the milling time To reduce the cost of the raw material To achieve a better surface finish To eliminate thermal post processes Next Question Title * 5. Which of the following thickness values are at risk of break? (2 answers required) 0.4 mm in ABS 0.6 mm in PET 0.2 mm in Aluminium 1.0 mm in Nylon 0.8 mm in Copper Next Question Title * 6. Please provide your contact details below to receive your CPD certificate (if you achieve the pass criteria) Name Company Country Email Address Next Question Title * 7. Please tick this box if you would like to be contacted by Protolabs to receive information about our products and services, as further detailed in our Privacy Notice. Agree Next SUBMIT ANSWERS