Technician A says that a semi-independent rear suspension is used with live rear axles. Technician B says that the semi-independent rear suspension is used only with non-drive rear axles. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
B
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If you are interested in modeling the vapor-liquid equilibrium for the carbon dioxide (1) + ethane (2) at 243.15 K. At this temperature, the vapor pressures of the components are as follows: P1sat = 1.52 MPa; P2sat = 1.06 MPa. This system also forms an azeotrope at x1 = y1 = 0.62 at this temperature. Which modeling technique would be best to use?
A. Since the pressure is large and the components are small in size, the ideal solution for the liquid and the vapor phase would work best here. B. Raoult’s law, since the components are small in size and the pressure of the system is low. C. A phi-phi modeling approach using the Peng-Robinson equation of state with a k12 to fit the azeotrope would be reasonable. D. A phi-phi modeling approach using the van der Waals equation of state with a k12 to fit the azeotrope would be reasonable. E. A gamma-phi approach with the 1-parameter Margules equation as the gamma model and the virial equation as the phi model.
A proactive accident prevention program demands that _____.
a. appropriate inspection follow-up times are established b. acceptable levels of risk determine all unsafe acts c. control of hazards be reported to regulatory bodies d. hazards be identified before they become an accident
Most analog sensors can produce only very weak signals.
Answer the following statement true (T) or false (F)
Select the abbreviation used to indicate a parting line on a dimension print of a plastic part.
A. pl B. PL C. PPL D. none of the above