For a beam with a moment of inertia I and length L, what is the relationship bet

Practice Questions

Q1
For a beam with a moment of inertia I and length L, what is the relationship between deflection and load?
  1. Directly proportional to I
  2. Inversely proportional to I
  3. Directly proportional to L
  4. Inversely proportional to L

Questions & Step-by-Step Solutions

For a beam with a moment of inertia I and length L, what is the relationship between deflection and load?
  • Step 1: Understand that a beam is a structural element that can bend when a load is applied to it.
  • Step 2: Recognize that 'deflection' is how much the beam bends under the load.
  • Step 3: Know that 'moment of inertia (I)' is a property of the beam that measures its resistance to bending.
  • Step 4: Realize that the length of the beam (L) also affects how much it bends.
  • Step 5: Learn that the relationship between deflection and load is such that if the moment of inertia (I) increases, the deflection decreases.
  • Step 6: Conclude that a beam with a higher moment of inertia will bend less under the same load compared to a beam with a lower moment of inertia.
  • Beam Deflection – The relationship between the load applied to a beam and its deflection, influenced by factors such as moment of inertia and length.
  • Moment of Inertia – A measure of an object's resistance to bending or flexural deformation, affecting how much a beam deflects under load.
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