
Recapitulare Mărunțirea si clasarea
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
M Diana
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Treapta de mărunțire - măruntă fină se realizează prin:
concasare
primară
măcinare
concasare
medie
măcinare extrafină
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă materialul iniţial se alimentează continuu, trecând o singură dată sau de mai multe ori prin utilajul de mărunţit, numim procedeul:
continuu
discontinuu
intermediar
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Clasarea realizată prin separarea particulelor pe baza diferenței de volum se numește:
volumetrică
gravimetrică
separare pneumatică
cernere
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
•fracțiunea cu dimensiuni mai mici decât ale deschiderilor suprafețelor de cernere se numește:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se dă utilajul:
denumiți componenta 3:
corpul
morii
gura de alimentare
bandaj de actionare a morii
roata dintata actionata de motor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Morile se umplu cu corpuri de macinat pana la ............................ din volumul total al tamburului.
50-55%
90-95%
20-25%
40-45%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sitele au dimensiunile ochiurilor mai mici de 1 mm, iar ciururile – cu deschideri mai mari de 1mm.m.
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