
9 - Legni e carta
Quiz
•
Instructional Technology, Professional Development, Design
•
University - Professional Development
•
Easy
Bruno Testa
Used 147+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
la principale suddivisione tra categorie di legni si ha tra:
legni resistenti e legni deboli
legni duri e legni teneri
legni d'alburno e legni di durame
legni esotici e legni nordici
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
quale di queste sostanze non è tra i componenti principali del legno
cellulosa
emicellulosa
acetato di cellulosa
lignina
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
il comportamento meccanico del legno è :
isotropo
anisotropo
tenace
duro
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
il legno viene sfogliato o tranciato per produrre quale tipo di semilavorato?
truciolare
compensato
lamellare
MDF
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nelle lavorazioni a macchina utensile, all'aumentare del numero di assi aumenta:
la quantità di legno lavorabile
la precisione ottenibile sui pezzi
la complessità delle forme ottenibili
la possibilità di tornire o fresare un componente
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
la laminazione del legno ha il vantaggio di avere:
disequilibrio tra tensione e compressione nella struttura
accorciamento delle fibre resistenti
minimo ritorno elastico
curvatura su più assi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
il vantaggio della curvatura a vapore consiste in:
utilizzare legno di bassa qualità utilizzabile
ottenere pezzi sempre uguali tra loro
utilizzare basse temperature di lavorazione
piegare semilavorati di legno lungo più assi
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