Biology > STUDY GUIDE > PSE 201 Final Exam QUESTIONS AND ANSWERS/ ALL ANSWERS VERIFIED (All)

PSE 201 Final Exam QUESTIONS AND ANSWERS/ ALL ANSWERS VERIFIED

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In this piece of equipment, thick stock is mixed with white water to form thin stock for the headbox of the paper machine a. Saveall b. Manifold c. Dilution chest d. Deculator e. Fan pump Corre... ct answer- e. Fan Pump In stock preparation, refining is required to improve sheet/board ___________ a. Caliper b. Basis weight c. Density d. Strength e. Yield Correct answer- d. Strength If a paper machine's headbox approach system features centrifugal cleaners, what device might be employed to remove air entrained in the cleaner accepts? a. De-mister b. Hoover c. Deculator d. Screen e. Attenuator Correct answer- c. Deculator Why are table rolls not used on modern, high-speed paper machines? a. Create too much micro-turbulence b. Too slow c. Can't be made wide enough d. Corrode too easily e. Not enough suction Correct answer- a. Create too much micro-turbulence For conventional roll presses, what problem makes it necessary to have multiple nips/stages? a. Over-heating b. Space c. Cost d. Crushing e. Basis weight variations Correct answer- d. Crushing This is the most common type of freeness test used in North America a. Canadian Standard b. TAPPI drainage c. MLS d. Schopper-Riegler e. Drainiac Correct answer- a. Canadian Standard In the stock prep area, consistency must be measured accurately and controlled well in order to achieve what critical sheet property? a. Basis weight b. Density c. Bulk d. Tensile breaking length e. Width Correct answer- a. Basis weight What are the three main types of paper machines? a. single-wire, twin-wire, multi-wire b. gravity, compression, gap c. fourdrinier, top-wire, gap d. incline, horizontal, hybrid Correct answer- c. fourdrinier, top-wire, gap A paper machine with one forming wire is called a ____________ a. Fourdrinier b. Robert c. Donkin d. Bottom former Correct answer- a. Fourdrinier What term is used to describe the fur-like structures on the fiber surface after refining? a. Fibrillation b. Sueding c. Spleening d. Cronification e. Shredding Correct answer- a. Fibrillation In stock prep, refining is typically controlled by measuring a. Basis weight b. Temperature c. Freeness d. Consistency e. Production rate Correct answer- c. Freeness _________ are added to a papermaking slurry primarily to improve ____________, which is significantly reduced by __________________ a. Retention aids, strength, refining b. Fillers, opacity, refining c. Sizing agents, drainage, refining d. Fillers, formation, drainage Correct answer- b. Fillers, opacity, refining What phenomenon, visibly located in the vacuum section of a single-wire paper machine, indicates the transition from a slurry to a web? [Show More]

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