Lubrifianți
Quiz
•
Instructional Technology
•
12th Grade
•
Hard
Gabriela Bucur
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Uzarea fără lubrifiant duce la:
încălzirea părților mecanice
uzarea părților mecanice
separarea părților mecanice
creșterea vitezei părților în mișcare
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Printre funcțiile lubrifianților regăsim:
reduce cantitatea de căldură generată
reduce uzarea părților mecanice
elimină etanșarea
blochează transmiterea mișcării
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Uleiurile de bază pot fi:
uleiuri minerale
uleiuri sintetice
uleiuri aditivate
uleiuri esențiale
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Aditivii adaugă noi proprietăți produsului final:
detergența
protecție anticorozivă
protecție antiuzură
protecție zgomot
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Caracteristici ale uleiurilor lubrifiante:
vâscozitate
punct de curgere
punct de inflamabilitate
rezistență la rupere
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Vâscozitatea uleiurilor lubrifiante scade cu creșterea temperaturii.
Adevărat
Fals
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cea mai scăzută temperatură la care un lubrifiant încă mai curge poate atinge 5 grade Celsius.
Adevărat
Fals
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