MATSE 201 Exam 1 Questions With Answers
Graded A+
In order to define a crystal structure, one must know
the Bravias lattice and basis
Which of the following is NOT one of the 7 crystal systems?
Face centered cubic
Elemental metals do not commonly crystallize in which of the following lattices
Simple Cubic
Which direction has the highest linear density in a crystal of Cu that crystallizes in the fcc?
[110]
Which direction has the highest linear density in a crystal of Na that crystallizes in the bcc?
[111]
In a BCC metal, the plane with the highest planer density is:
(110)
The closest packed plane in a metal FCC structure is:
(111)
Which is TRUE about Bragg's Law?
All of the above
Which plane will show a peak on a diffraction pattern for alpha-Fe (metal bcc structure)?
(220)
Which of the following statements about vacancies is true?
as temperature increases, the number of vacancies will increase
The Hume-Rothery rules give the conditions to be met for
Complete solid solubility
Which of the following describe the defect represented by AlMg•
Aluminum substitution on a magnesium site
Which of the following could be used to maintain electroneutrality for the substitution of an calcium
atom into a zirconium lattice point?
For every two calcium substitutions, create a zirconium interstitial
Which is true regarding dislocations in crystals?
Graded A+
In order to define a crystal structure, one must know
the Bravias lattice and basis
Which of the following is NOT one of the 7 crystal systems?
Face centered cubic
Elemental metals do not commonly crystallize in which of the following lattices
Simple Cubic
Which direction has the highest linear density in a crystal of Cu that crystallizes in the fcc?
[110]
Which direction has the highest linear density in a crystal of Na that crystallizes in the bcc?
[111]
In a BCC metal, the plane with the highest planer density is:
(110)
The closest packed plane in a metal FCC structure is:
(111)
Which is TRUE about Bragg's Law?
All of the above
Which plane will show a peak on a diffraction pattern for alpha-Fe (metal bcc structure)?
(220)
Which of the following statements about vacancies is true?
as temperature increases, the number of vacancies will increase
The Hume-Rothery rules give the conditions to be met for
Complete solid solubility
Which of the following describe the defect represented by AlMg•
Aluminum substitution on a magnesium site
Which of the following could be used to maintain electroneutrality for the substitution of an calcium
atom into a zirconium lattice point?
For every two calcium substitutions, create a zirconium interstitial
Which is true regarding dislocations in crystals?
