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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define hoop stress in your own words.
💡 Hint: Think about how pressure affects the walls of a cylinder.
Question 2
Easy
What is the formula for calculating hoop stress in thin-walled cylinders?
💡 Hint: Remember P.R.T. - Pressure, Radius, Thickness.
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
What is the formula for calculating hoop stress in thin-walled cylinders?
- σh = p * r / (2 * t)
- σh = pr/t
- σh = p/(r * t)
💡 Hint: Think about how the radius and thickness are involved in the calculation.
Question 2
True or False: In thick-walled cylinders, the hoop stress is constant throughout the thickness.
- True
- False
💡 Hint: Consider what happens to stress as you move from the inner to the outer wall.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A steel cylinder is designed to withstand an internal pressure of 800 kPa with an internal radius of 20 cm and a wall thickness of 3 cm. Calculate the hoop stress and determine if the design meets a safety factor of 2.
💡 Hint: Remember to consider the safety margin when calculating.
Question 2
A cylindrical tank has a radial temperature gradient causing uneven thermal expansion. If the inside temperature is 200°C and the outside is 20°C, calculate the thermal stress given E=200 GPa and α=12 x 10^-6 /°C.
💡 Hint: Use the coefficients correctly to express temperature differences.
Challenge and get performance evaluation