Test your basic knowledge |

Aerospace Materials And Properties

Subject : engineering
Instructions:
  • Answer 21 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Change in the length of an object in some direction per unit.






2. The ability of a material to resist deflection or stretching.






3. Condition caused by collapse - break - or bending - so that a structure or structural element can no longer fulfill its purpose.






4. A force with its resultant passing through the centroid of a particular section and being perpendicular to the plane of the section. A force in a direction parallel to the long axis of the structure.






5. The condition of a string - wire - or rod that is stretched between two points.






6. Mechanical property of a material that indicates the ability of the material to handle overloading before it fractures.






7. A mathematical property of a cross section that is concerned with a surface area and how that area is distributed about a centroidal axis.






8. A projection used for strength or for attaching to another object






9. A material made of multiple layers of fibers held together with a matrix.






10. The geometric center of an area.






11. A mechanical property of a material that shows how effective the material is absorbing mechanical energy without sustaining any permanent damage.






12. The way a material responds to specific machining techniques.






13. Any alteration of shape or dimensions of a body caused by stresses - thermal expansion or contraction - chemical or metallurgical transformations - or shrinkage and expansions due to moisture change.






14. The force acting across a unit area in a solid material resisting the seperation - compacting - or sliding that tends to be induced by external force.






15. A condition where there are no net external forces acting upon a particle or rigid body and the body remains at rest or continues at a constant velocity.






16. The amount of plasticity that procedes failure.






17. A surface or shape exposed by making a straight cut through something at right angles to the axis.






18. When a material is reduced in volume by the application of pressure; the reciprocal of the bulk modulus.






19. The ratio of the increment of some specified form of stress to the increment of some specified form of strain - such as Young's modulus - the bulk modulus - or the shear modulus. Also known as coefficient of elasticity - elasticity modulus - elastic






20. Something made up of interdependent parts in a definite pattern of organization - such as trusses - frames - or machines.






21. Temporary loss of strength and energy resulting from hard physical or mental work