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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the wire diameter if tp = 5 mm in a helical spring?
💡 Hint: Review the definitions of parameters used in shear stress calculation.
Question 2
Easy
If the mean coil diameter of a spring is 100 mm, what is its role?
💡 Hint: Consider the equation for shear stress.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
The formula for shear stress in helical springs is τ = 8PD/(πd³). What does P represent?
- Mean coil diameter
- Axial load
- Wire diameter
💡 Hint: Think about the forces applied to the spring.
Question 2
True or False: The number of active coils affects the deflection of a helical spring.
- True
- False
💡 Hint: Consider how springs work under load.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A mechanical design requires a helical spring to withstand a maximum load of 600 N with a permissible shear stress of 350 MPa. Using a wire diameter of 8 mm, calculate the mean coil diameter needed to ensure safety.
💡 Hint: Don't forget to convert units correctly.
Question 2
You have a spring with 15 active coils, 3 mm wire diameter, and you want to calculate how much deflection it will undergo under a load of 200 N, with a shear modulus of 90 GPa. What is the deflection?
💡 Hint: Ensure that all measurements are in metric units.
Challenge and get performance evaluation