pse exam 1 questions & answers
2024/2025
What are the three major chemical components of wood (other than water)? - ANSWERSCellulose,
hemicellulose, lignin
Which of the following is NOT classified as an extractive component of wood?
a.
Pinene
b.
Rosin
c.
Phenolpropane
d.
Triglyceride fat - ANSWERSPhenolpropane
What type of chemical group, and how many, is present on each anhydroglucose repeating unit of
cellulose? - ANSWERSHydroxyl (-OH), 3 of them
What process, happening during refining, can account for increased conformability of the fibers while
they are still wet?
, Cutting
b.
Internal delamination
c.
External fibrillation
d.
Deswelling - ANSWERSDONT KNOW
Which of the following fibers is typically the thinnest (smallest diameter)? - ANSWERSEucalyptus
Xylem is the Latin name for what? - ANSWERSWood
What often becomes ribbon-like in the course of pulping, refining, and formation into paper? -
ANSWERSfibers
Which of the following generally cannot pass through the slots of a typical slotted pressure screen
system? - ANSWERSshives
Formation of paper occurs on what part of the paper machine? - ANSWERSwire section
What is the primary purpose of a pressure screen in the approach flow to a paper machine? -
ANSWERSremove larger items
2024/2025
What are the three major chemical components of wood (other than water)? - ANSWERSCellulose,
hemicellulose, lignin
Which of the following is NOT classified as an extractive component of wood?
a.
Pinene
b.
Rosin
c.
Phenolpropane
d.
Triglyceride fat - ANSWERSPhenolpropane
What type of chemical group, and how many, is present on each anhydroglucose repeating unit of
cellulose? - ANSWERSHydroxyl (-OH), 3 of them
What process, happening during refining, can account for increased conformability of the fibers while
they are still wet?
, Cutting
b.
Internal delamination
c.
External fibrillation
d.
Deswelling - ANSWERSDONT KNOW
Which of the following fibers is typically the thinnest (smallest diameter)? - ANSWERSEucalyptus
Xylem is the Latin name for what? - ANSWERSWood
What often becomes ribbon-like in the course of pulping, refining, and formation into paper? -
ANSWERSfibers
Which of the following generally cannot pass through the slots of a typical slotted pressure screen
system? - ANSWERSshives
Formation of paper occurs on what part of the paper machine? - ANSWERSwire section
What is the primary purpose of a pressure screen in the approach flow to a paper machine? -
ANSWERSremove larger items
