Which of the following represents a eutectic microstructure?                 (A)                    (B)                     (C)                                                                                     

Use the Fe-C phase diagram below to answer the following questions. A Fe-C alloy with a very high amount of carbon (3.5% or higher) is called “pig iron”.  At a temperature of 600 °C and 4.3% carbon: a. Which phase(s) is/are present?  b. What is the composition of each phase?  c. What is the phase fraction of each phase at this temperature and composition?  Pig iron is very brittle and not very useful.  To convert it into more useful (lower carbon) forms, a process called decarburization takes place where air is passed over the pig iron.  This process causes the carbon in the pig iron to react with oxygen to form carbon dioxide, and reducing the overall carbon content.  d. If the carbon content is reduced through this process from 4.3% to 3.0%, how does the carbon content (composition) change for each of the phases at 600 °C? Note: Do not forget to take a photo of your scratch papers and send it to the email address given in the Instructions within 30 minutes after you submit your exam to be able to receive credit. 

Which of the following best describes a product distributor?

For the tetragonal system drawn above, please enter the Miller Indices of the illustrated plane in the box below. 

A veterinarian prescribes twice daily butorphanol, a Class III controlled substance opioid, to a 12 year old, intact male Bullmastiff dog with acute osteoarthritis. Which of the following best describes the limitations on the prescription?

In a simple cubic lattice, what family of planes has the greatest planar density?

Of the complaints that veterinary clients file with state veterinary boards, which of the following is the most common topic?

For cubic crystal system, identify the two crystal directions shown in the following figure. Note: Indicate negative indices with a minus sign. For instance,  Direction A [dirA] Direction B [dirB]

Materials with metallic bonding owe their very strong directional bonds to the sharing of electrons among adjacent atoms.

Body centered cubic (BCC) crystal structures follow the ABCABCABC… packing sequence.