Fie mecanismul din figura de mai jos alcătuit din doua bare articulate și un disc. Cunoscandu-se viteza unghiulară a barei OA, dimensiunile barelor și raza discului, se cere sa se determine centrele instantanee de rotație, vitezele unghiulare, viteza punctului B, viteza minima atinsa de bara, viteza maxima de pe disc. Se cunosc OA=AB=2R alfa=45 grade

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above