Topic 4: Moments

Lesson 4.3: Non-uniform Rods And Beams — Quiz

Test your understanding of lesson 4.3: non-uniform rods and beams with 5 practice questions.

Practice Questions

Question 1

What determines the position of the center of mass in a non-uniform rod?

Question 2

A non-uniform rod of length $L$ has its center of mass located at a distance $d$ from one end. If the total weight of the rod is $W$, what is the moment about the end of the rod where the center of mass is located?

Question 3

A beam of length $4 m rests on two supports and is uniformly loaded with $200 N/m$. If each support reaction force is denoted as $R_1$ and $R_2$, what is the formula to calculate $R_1$?

Question 4

A non-uniform rod leans against a wall at an angle $\theta$. If its weight is $W$ and it just begins to tilt about its base, what condition describes this situation in terms of forces and moments?

Question 5

When calculating the reactions at supports for a beam that is suspended and loaded, if the total downward load is $P$ and the distances from each support to the load are $d_1$ and $d_2$, respectively, what is the expression for the moment about one of the supports?