PSE 212 Final Exam Practice Questions
& Answers 2024/2025
You are trying to determine the formation of a tissue sheet with a grammage of 40. You have an
inspection areas of 1 mm^2. You determine that there are 100 fibers per square millimeter on average.
What formation index (FI) would you calculate with an inspection area of 1 mm^2? - ANSWERS0.1
Two signals can be fully resolved from each other when their averages are separated by 1.5 standard
deviations. - ANSWERSfalse
Which two properties are the same, just expressed in different units? - ANSWERStensile index and
breaking length
Light scattering is used to measure the overall density the paper sheet and is effective in predicting the
thickness of paper. - ANSWERSfalse
The area indicated by the arrow in the image below would be called the ___________ area. (crossover of
2 curves) - ANSWERSno decision
You conduct two sets of test for a paper property. One set of tests you make 3 measurements and one
set of tests you make 12 measurements. You record the average and standard deviation of each data set.
You need to determine if the two data sets are different to a confidence level of 90 %. What t-score
should you use? - ANSWERS2.92
The term "hysteresis" when used in the context of water and paper can best be described as: -
ANSWERSThe characteristic of a paper sheet where the moisture content at a given humidity will be
different depending on the prior moisture history of the sample.
When talking about color, "shade" could be best described as: - ANSWERSThe hue an object presents to
an observer or detector.
& Answers 2024/2025
You are trying to determine the formation of a tissue sheet with a grammage of 40. You have an
inspection areas of 1 mm^2. You determine that there are 100 fibers per square millimeter on average.
What formation index (FI) would you calculate with an inspection area of 1 mm^2? - ANSWERS0.1
Two signals can be fully resolved from each other when their averages are separated by 1.5 standard
deviations. - ANSWERSfalse
Which two properties are the same, just expressed in different units? - ANSWERStensile index and
breaking length
Light scattering is used to measure the overall density the paper sheet and is effective in predicting the
thickness of paper. - ANSWERSfalse
The area indicated by the arrow in the image below would be called the ___________ area. (crossover of
2 curves) - ANSWERSno decision
You conduct two sets of test for a paper property. One set of tests you make 3 measurements and one
set of tests you make 12 measurements. You record the average and standard deviation of each data set.
You need to determine if the two data sets are different to a confidence level of 90 %. What t-score
should you use? - ANSWERS2.92
The term "hysteresis" when used in the context of water and paper can best be described as: -
ANSWERSThe characteristic of a paper sheet where the moisture content at a given humidity will be
different depending on the prior moisture history of the sample.
When talking about color, "shade" could be best described as: - ANSWERSThe hue an object presents to
an observer or detector.
