PSE 212 test 1 Questions and Correct Answers/ Latest Update / Already Graded

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PSE 212 test 1 Questions and Correct
Answers/ Latest Update / Already Graded
Machine Direction

Ans: in direction of movement


Cross direction

Ans: Across the sheet


Z direction

Ans: Depth/thickness


Consistency

Ans: The oven dried mass of solids divided by the total mass of
solids and water times 100%


Pulp

Ans: the single component of fibers in water, typically these
will be "pure" hardwood, softwood, mechanical pulp, or
recycled pulp




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Stock o Furnish

Ans: The blend of fibers and other raw materials in
papermaking system prior to it being formed into a paper sheet
or web


Wet end

Ans: Headbox
Fourdrinier
Wet Presses


Dry end

Ans: Dryer Section
calender
Reel


Stock Prep and refining equipment

Ans: Chests
Mixers
Refiners


Function of Prep

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Ans: to blend fibers and other raw materials at the proper
concentrations and consistencies and to develop the
papermaking properties of fibers


Refining

Ans: To improve the bonding characteristics of fibers, while
imparting the least damage and loss of drainage rate


Canadian Standard Freeness

Ans: Measure of drainage rate


Types of refiners

Ans: Beaters
conical
disc


Refining control measurements

Ans: Drainage rates
energy input
-HP*day/ton
-kW*hr/ton


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