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Fundamentals of Material Science


Quiz Questions

1.Ionic bond is a type of bond where one or more electrons are wholly transferred from an atom of one element to the atom of the other.
True
False
2. In a crystalline structure, the atoms are arranged in a three-dimensional array called a __________.
Lattice
Molecule
3.Hydrogen bond is a type of bond, which occurs due to the ease with which hydrogen atoms are willing to give up an electron to atoms of oxygen, fluorine, or nitrogen.
True
False
4._______________ is defined as the bond when the electrons of neutral atoms spend more time in one region of their orbit, a temporary weak charge will exist.
Molecular bond
Covalent bond
5.The _______________ is a region of misfit between the grains and is usually one to three atom diameters wide.
Grain boundary
Structure
6.In general, the most common basic crystal patterns associated with metals are:
Body-centered cubic
Face-centered cubic
Hexagonal close-packed
All of the above
7.In a ________________ arrangement of atoms, the unit cell consists of eight atoms at the corners of a cube and one atom at the body center of the cube.
Body-centered cubic
Free-centered cubic
8.Electrons are shared when an atom needs electrons to complete its outer shell and can share those electrons with its neighbor is called as a covalent bond.
True
False
9. ___________ is the permanent deformation that increases with time under constant load or stress.
Creep
Lattice
10.________________ is the property or ability of a metal to exist in two or more crystalline forms depending upon temperature and composition.
Polymorphism
Uranium
11.The gamma phase is stable at room temperature and has a crystal system characterized by three unequal axes at right angles.
True
False
12.________________ are stresses produced in structural members because of the weights they support.
Structural stresses
Residual stresses
13.________________ exists when two parts of a material tend to slide across each other in any typical plane of shear upon application of force parallel to that plane.
Shear stress
Compressive stress
14.The Bulk Modulus of Elasticity is the elastic response to hydrostatic pressure and equilateral tension or the volumetric response to hydrostatic pressure and equilateral tension.
True
False
15.What does figure 4 stands for?

(Refer Pg 18)
Typical Brittle Material Stress-Strain Curve
Typical ductile material
Typical Young’s Modulus
None of the above
16.Flow stresses are stresses induced in vessels containing pressurized materials.
True
False
17._______ is the internal resistance of a material to the distorting effects of an external force or load.
Stress
Strain
18.Plastic deformation (or plastic strain) is a dimensional change that does not disappear when the initiating stress is removed.
True
False
19.The ________________ of a component is usually considered based on the maximum load that can be borne before failure is apparent.
Strength
Properties
20.What does UTS stand for?
Ultimate Tensile Strength
Ultimate Testing Strength
Ultimate tensile Standard
None of the above