What are functions of an uninterruptible power system (UPS)? Select all that apply.
A) Allow time for a generator to start when there is a power outage.
B) Provide high quality power in terms of voltage and frequency.
C) Keep critical equipment running in the event of utility power outage.
D) Allow time to shut down in an orderly fashion.
A) Allow time for a generator to start when there is a power outage.
B) Provide high quality power in terms of voltage and frequency.
C) Keep critical equipment running in the event of utility power outage.
D) Allow time to shut down in an orderly fashion.
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Eleven moles per second of a pentane (1) + benzene (2) system entering at 40 °C and 1500 mmHg is flashed at 40 °C and 500 mmHg. The mixture entering the flash evaporation unit is 40% by mole pentane. Estimate the molar flowrate and composition of the resulting phase(s) exiting the flash evaporation unit. Note the following information: • P1sat(40 C) = 867.07 mmHg • P2sat(40 C) = 182.64 mmHg • The liquid can be modeled by the 2-parameter Margules equation at this temperature, with the following parameters: A12 = 0.6564 A21= 0.5832
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A K-map indicates the output value for each possible combination of input values
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Material Adverse Facts contained in a PCS report must be_________________. This can be done by making the report(s) available to the purchaser for their review.