Convert the following binary numbers to hexadecimal and base 10:
a. 1101 b. 1000100 c. 1111100 d. 1110000 e. 10000 f. 101010
Using the methodologies introduced in paragraph 13.2:
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Which of the following are OSHA requirements for fire brigades?
A) Organizational statement B) Pre-fire planning C) Physical capability D) All of the above
Which of the following statements is accurate?
An ammonia synthesis process 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 a fraction of the entering nitrogen and hydrogen are converted into ammonia. 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 almost pure ammonia, is the product. A fraction of the vapor stream leaving the condenser is purged, while the rest is recycled. A. Raoult’s Law would be a reasonable way to model the VLE for ammonia in the condenser. B. Henry’s Law would be a reasonable way to model the VLE for oxygen in the condenser. C. If we increase the size of the reactor, allowing a larger fraction of the nitrogen and hydrogen to be converted to ammonia, it won’t lead to an increase in the liquid product flow rate, because the product flow rate is limited by the equilibrium constraint in the condenser. D. If we maintain the same flow rate of entering feeds, but we purge a smaller fraction of the vapor leaving the condenser, then the mole fraction of oxygen in the purge stream will go down. E. None of the above are true.
The ____ uses a high temperature gas flame to preheat the metal to a kindling temperature, at which time a stream of pure oxygen is injected.
A. gas tungsten arc welding process B. shielded metal arc welding process C. stick electrode welding process D. braze welding process E. none of the above
When a sharp exterior corner has only a slight relief, it is called a ____.
A. fillet B. round C. runout D. break corner E. none of the above