Practice Factor Of Safety (fos) (2.5) - Failure Theories - Machine Element and System Design
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Factor of Safety (FoS)

Practice - Factor of Safety (FoS)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the Factor of Safety measure in design?

💡 Hint: Think about safety in engineering applications.

Question 2 Easy

If a material has a yield strength of 120 MPa and the actual working stress is 60 MPa, what is the FoS?

💡 Hint: Use the formula: FoS = Material Strength / Actual Working Stress.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does a high Factor of Safety indicate?

Less reliable design
More conservative design
Material failure likelihood

💡 Hint: Think about safety in design.

Question 2

True or False: The Factor of Safety is the same for all materials.

True
False

💡 Hint: Consider why material properties would differ.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A structural member is rated for 400 MPa and is subjected to an actual load of 80 MPa. Calculate its FoS and discuss if this is adequate for a construction application with occasional overloads.

💡 Hint: Focus on the ratio and implications of safety in design.

Challenge 2 Hard

In a design project, you're unsure if the selected material can withstand the anticipated stresses. The project requires an FoS of 2. If the material has a strength of 250 MPa, what is the maximum stress you can apply?

💡 Hint: Recognize how to rearrange the FoS formula.

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Reference links

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