What is the primary assumption made about beams when calculating reactions on supports?

Beam Support Reactions and Characteristics

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Physics
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9th - 10th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beams are assumed to be flexible.
Supports are considered to be rigid.
Beams are considered to have mass.
Supports are assumed to be frictionless.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many unknown reactions are present in a simply supported beam?
Four
Five
Two
Three
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a characteristic feature of an overhanging beam?
It has a hinge in the middle.
It is fixed at one end and free at the other.
It is supported at both ends.
It extends beyond its support on one side.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes a fixed beam statically indeterminate?
It is supported only at one end.
It has a hinge in the middle.
It has fewer supports than required.
It has more unknowns than equilibrium equations.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between a cantilever beam and a propped cantilever beam?
A cantilever beam has a hinge in the middle.
A cantilever beam is supported at both ends.
A propped cantilever has a roller support at the free end.
A propped cantilever is fixed at both ends.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can a propped cantilever beam be made statically determinate?
By making it a continuous beam.
By adding more supports.
By removing the roller support.
By introducing an internal hinge.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a continuous beam characterized by?
Being fixed at one end.
Having two or more spans.
Having a hinge in the middle.
Having a single span.
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