Practice Center Of Gravity And Mass Moment Of Inertia Of Homogenous Solids (7.4)

Practice: Center of Gravity and Mass Moment of Inertia of Homogenous Solids

Lesson 7.4Theory of Structures - part b

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8 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the center of gravity?
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Think about where balance occurs.
Question 2.
Name a common shape where the center of gravity lies at its centroid.
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Consider the shape's symmetry.
3Question 3.
What defines the center of gravity?
- The point of weight concentration
- The bottom point
- The uppermost point
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Consider where balance exists.
4Question 4.
True or false: The moment of inertia is irrelevant in structural engineering.
- True
- False
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Think about its role in resistance to movement.
Question 5.
A solid rectangular beam with a width of 0.3m, height of 0.2m, and mass of 50kg is loaded with a uniform mass on top. Calculate its moment of inertia about its base.
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Use the specific formula for rectangles.
Question 6.
Compare two cylindrical tanks - one with a height of 1.5m and radius of 0.75m, and the other with height 2.0m and radius 0.5m. Analyze their moment of inertia around their respective axes.
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Remember, you need to find the mass based on volume.

4 more questions in this section. Enroll free to practise them all.