Aerospace Semester Exam Review

1. A centroid location is determined by an object's line of ...

• symmetry
• asymmetry

2. What is Moment of Inertia?

• is a scientific property of a cross section that gives important information about how that cross-sectional area is distributed about a centroidal axis.
• is a literal property of a cross section that gives important information about how that cross-sectional area is distributed about a centroidal axis
• is a mathematical property of a cross section (measured in inches4) that gives important information about how that cross-sectional area is distributed about a centroidal axis

3. A higher moment of inertia produces a greater resistance to deformation.

• True
• False

4. When calculating the moment of Inertia, what does the b stand for?

• Thickness of Sample
• Width of Sample
• Significant Influence

5. When calculating the moment of Inertia, what does the h stand for?

• Thickness of Sample
• Width of Sample
• deformation
• resistance

6. Why are composite materials used in structural design?

• It's cheaper
• allows support for a weak material that is further away from the beam's center of gravity
• it creates strong material that is heavy

7. In general, a higher modulus of elasticity produces a lower resistance to deformation.

• True
• False

8. What is tension stress?

• A body being squeezed
• A body being stretched

9. What is compression?

• A body being squeezed
• A body being stretched

10. How do you find stress?

• Area/Load
• Amount of stretch/original length
• original length/amount of stretch
• load/area