Practice Quiz: Chapter 07

. What is not a good way for engineers to collect data about a process?

a) Model the process, then provide inputs to the model and extract outputs

b) Use mathematical calculations to test a hypothesis

c) Set up an experiment in the lab and record the result

d) Ask a mentor for data from a different process, and make the assumption that the processes are the same

. What is the function of acid-forming bacteria on the flowchart in Figure 7.1?

a) Consume acetate

b) Produce acetate and H2

c) Produce methane

d) Degrade organic residue

. Which of the following is an appropriate situation for using a table?

a) Showing the trend in global temperature changes over time

b) Showing the relationship between speed and energy consumption of a vehicle

c) Providing a numerical record of the sales revenue from ten different cities

d) Showing the percentages of people that use public transit versus the total population

. Which of the following is an appropriate situation for using a x-y graph?

a) Showing the trend in global temperature changes over time

b) Showing the relationship between speed and energy consumption of a vehicle

c) Both a and b

d) Showing the percentages of people that use public transit versus the total population

. Which of the following is an appropriate situation for using a pie chart?

a) Showing the trend in global temperature changes over time

b) Showing the relationship between speed and energy consumption of a vehicle

c) Providing a numerical record of the sales revenue from ten different cities

d) Showing the percentages of people that use public transit versus the total population

. What is the purpose of a flow chart?

a) To show a simplified version of a process

b) To show numerical data

c) To show the relationship between two variables

d) To make your report look professional

. What is the purpose of a Gantt chart?

a) To show a simplified version of a process

b) To show numerical data

c) To show the relationship between two variables

d) To show timeline and deadlines of a project

. What is the primary benefit of the bar graph?

a) Easy to visually compare data values by looking at bar heights

b) Easy to make using Excel

c) It is the standard way of representing data

d) Bar graphs can become confusing and we should avoid using them

. Why do some engineers prefer x-y graphs over line charts?

a) X-y graphs are more visually appealing

b) X-y graphs are easier to make

c) Line charts cannot show relationships between two variables

d) Line charts present the information in a far too simplistic way

. Why should we include graphics in engineering documents?

a) To improve readability

b) To meet people's expectation of engineering documents

c) To help explain complex data and ideas

d) All of the above

. Badly designed or badly placed graphics can detract from the readability and effectiveness of a document.

a) True

b) False

. Graphics are useful primarily in the latter phase of a project, and is not useful in the invention and design phase.

a) True

b) False

. A picture is worth a thousand words. Therefore, graphics can replace text in documents fully.

a) Truse

b) False

. An engineer is ethically and legally required to cite sources for borrowed information.

a) True

b) False

. Pie charts are good for showing precise numerical data.

a) True

b) False

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