Non-chemical microbial treatment of boiler water can be accomplished by using __________
A. electric pulse treatment
B. ultraviolet light
C. hydrodynamic cavitation
D. all of the above
D
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Which of the following would you NOT expect to be true at the new steady state (compared to normal operation)?
An ammonia synthesis process normally works as follows: Fresh feed air and hydrogen are combined with a recycle stream and the combined stream is compressed to 10 MPa. The compressed stream enters a reactor, and the entering nitrogen and hydrogen are converted into ammonia until the reaction reaches equilibrium. The reactor effluent, still at 10 MPa, enters a condenser. The liquid and vapor streams leaving the condenser are in VLE. The liquid stream, which is essentially pure ammonia, is the product. A fraction of the vapor stream leaving the condenser is purged, while the rest is recycled. There is a problem with the compressors and the pressures of the reactor and the condenser both drop to 9 MPa. The fresh feed rate and the fraction of vapor leaving the condenser that is purged each remain the same, as do the reactor and condenser temperatures. The system reaches a new steady state at 9 MPa.
For the circuit shown in Figure P2.24, determine which components are supplying power and which are dissipating power. Also determine the amount of power dissipated and supplied.
What will be an ideal response?
Tech A says, upon heavy acceleration, the pinion attempts to climb up the ring gear due to an "equal and oppiste" reaction. Tech B says this action attempts to raise the front of the differential housing. who is correct?
A. a only B. b only C. both a and b D. neither A nor B
In 17th-century colonial America, all of the following are true regarding women EXCEPT
A. women could not own property under any circumstances. B. women could not vote. C. women were regarded as morally weaker than men. D. women dominated the profession of midwives. E. abusive husbands could be punished.