The following diagram shows  a 2D representation of the atom arrangements of a common ceramic.  What type/s of atomic bonding is/are present:

The following image shows a piece of chrome plated steel that has been scratched exposing the steel to air and moisture. Shown are two regions A and B.

Which of the following is consistent with this image

How many atoms lie within the following unit cell:

The following shows the modulus as a function of temperature for 4 different polymers, A, B and C. The glass transition temperature is 100 deg C.

Using the figure, select the correct option that is consistent with this figure.

Which of the following is correct

When considering the following stress-strain curve of a metal,  which of the following is correct:

Which ONE of the following is correct:

Which of the following is true:

(a) List the UN sustainable development goal that you were assigned in workshop 1. Give its number and describe in 1-2 sentences what the goal is.

(b) Describe in 5-6 sentences the materials engineering solution that could be used to address this goal.

(c) Discuss the current drawbacks with this potential solution that have prevented it from being implemented so far

You will receive multiple questions about this graph during the test. The information below is identical for all of them.

A material is tested in tension and found to have the following stress-strain graph. The coordinates of point B on the graph are (0.25, 56). The elastic modulus of the material is 7.8 GPa.

Calculate the strain at the point where the material yields. Calculate your answer as a % to at least 3 significant figures

(Note: Do not try to just read it straight off the graph - this will not be accurate enough)