All mechanical seals have a set of _____, one that rotates and one that is stationary
a. springs
b. cartridges
c. primary faces
d. O-rings
c
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Which of the following statements is true?
A. Bubble-point pressure calculations are normally easier than bubble-point temperature calculations, since the pure-component vapor pressures are fixed (since the system is at constant temperature). B. When you flash a liquid by lowering the pressure isothermally, the result will always be a two-phase (liquid and vapor) system. C. If given the preference between data obtained experimentally or data obtained from a model, it is generally best to use the model data since those do not contain experimental errors. D. Azeotropes will only form for systems when they exhibit positive deviations from Raoult’s Law. E. None of the above are true.
Only a few states process and produce milk
Indicate whether the statement is true or false.
?List the 5 factors that must be considered when choosing a joining process.
What will be an ideal response?
Locking up tools and equipment is a good practice because _____
a. thieves can't easily open locks b. insurance companies will charge less c. it keeps unauthorized people from using them d. many thefts are simply a matter of opportunity