Exam-MAAE2700-2009April.pdf-MAAE2700 Final Exam page 1/17 C
Showing 1-2 out of 17
MAAE2700 Final Exam page 1/17
C A R L E T O N
U N I V E R S I T Y
No. of Students:
Department Name & Course Number:
Mechanical & Aerospace Engineering
Instructor(s) Ronald E. Miller
count the number of pages in this examination question paper
beginning to write, and
report any discrepancy immediately to a proctor.
This question paper has
This examination question paper
be taken from the examination room.
In addition to this question paper, students require:
an examination booklet
yes ___ no _X_
a Scantron sheet
yes _X_ no ____
questions on the
questions directly on the examination paper, using the backs of the
sheets if necessary.
A faculty-approved, non-programmable calculator is allowed.
No notes, books or other materials are permitted.
MAAE2700 Final Exam page 2/17
Value of each question is indicated for a total of 100 marks.
Questions 1-29 must be answered on the scantron sheet.
marked or written on pages 2-4 of this exam paper will not be graded!!!
Questions 1-11 are True/False questions (1 mark each).
There is no penalty for guessing.
Elements tend to have increasing electronegativity as we move from left to right in
the periodic table.
Pearlite is the name for the result of slowly cooling austenite with the eutectoid
Martensitic stainless steel tends to be stronger than austenitic stainless steel, but not
as corrosion resistant.
"Sensitized" stainless steel refers to the region of material near a weld where the
strength has been significantly reduced.
Generally, as the average degree of polymerization decreases, the strength of a
polymer will increase.
Covalent bonding is generally a stronger form of bonding than van der Waals
Strong ionic bonding leads to materials with excellent electrical conductivity.
Allotropy and Polymorphism are terms used to refer to how some materials exist in
different crystal structures at different temperatures.
Because there are so few vacancies in most crystalline solids, they rarely have any
effect on the creep behaviour of materials.
At low temperature relative to a metal's melting temperature, a smaller average grain
diameter will lead to greater ductility.
In general, increased carbon content will increase the strength and hardness of steel.
Questions 12-29 are multiple choice (1 mark each).
There are no penalties for guessing.
Small amounts of carbon can be incorporated into BCC iron as
a graphitic surface layer
a network of dislocations
an interstitial solid solution
a substitutional solid solution
Pay $2 or upload 3 study materials to unblur this document.
Course Code: 2700
Course Name: Engineering Materials