While discussing brake fluids, Technician A says hygroscopic brake fluid absorbs moisture from the air. Technician B says DOT 3 brake fluid has a higher boiling point than DOT 4 fluid. Who is correct?
A. A only
B. B only
C. both A and B
D. neither A nor B
Answer: A
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If the overall mixture is 20% by mole R-245fa, will the mixture exist in one phase or multiple phases in equilibrium at 240 K and 0.1 bar according to the model? If the mixture does exist in multiple phases, what is the composition of the equilibrium phases?
Consider a model that predicts the behavior of the R-245fa (1) + isopentane (2) system at two pressures shown in the figure.
A. 1 liquid phase
B. 1 liquid phase (x1 = 0.03) and 1 vapor phase (y1 = 0.37)
C. 2 liquid phases (x1? = 0.22; x1? = 0.92) and 1 vapor phase (y1 = 0.64)
D. 2 liquid phases (x1? = 0.22; x1? = 0.92)
E. 2 vapor phases
Much of what we eat or wear today is the result of Neolithic domestication of animals and plants in:
a. Northern Asia c. Central America b. the Fertile Crescent d. Australia
____ is defined as the underground conductors between the utility electric supply system and the service point.
A. Service lateral B. Primary branch C. Ancillary service D. Connection branch
Describe how Deming's plan-do-check-act cycle might be applied in improving a construction company's procedures for scheduling subcontractors' work on a construction project
What will be an ideal response?