Practice Sign Convention (2.6) - Beam Analysis part a

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8 questions

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6 sample questions

Question 1.
What direction is considered positive for the x-axis?
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Think of the direction you normally write.
Question 2.
Is the positive y-direction upward or downward?
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Consider what direction we usually refer to as 'up'.
3Question 3.
What is the positive x-direction?
- To the left
- Upwards
- To the right
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Think of navigation on a Cartesian plane.
4Question 4.
Why is it essential to use a sign convention?
- True
- False
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Consider why clear communication is important.
Question 5.
A beam has a downward force of 200N and a counter-clockwise moment of 50Nm. Sketch the free body diagram and indicate the forces and moments using the sign convention.
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Remember to use arrows to indicate the forces and moments clearly.
Question 6.
If an engineer misapplies the sign convention in analysis, what steps should they take to correct their calculations?
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Think of the importance of double-checking work for accuracy!

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