When did it become illegal to "intentionally" vent HFC refrigerants to the atmosphere? Give the month, day, and year.
What will be an ideal response?
The date was November 15, 1995.
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A(n) ____________________ is a voltage reference sensor that will change resistance in response to vacuum or pressure.
Fill in the blank(s) with the appropriate word(s).
Which group was partly blamed by the Directory for instigating the Terror?
a. young, single men b. Parisian workers c. the Girondins d. older, married men
Hearing protection should be worn any time the noise level exceeds _________
A) 70 dB B) 80 dB C) 90 dB D) 60 dB
Consider the piping system shown in the accompanying figure. The speed of water flowing through the 4-in.-diameter section of the piping system is 3 ft/s. What is the volume flow rate of water in the piping system? Express the volume flow rate in ft3/s, gpm, and L/s. For the case of steady flow of water through the piping system, what is the speed of water in the 3-in.-diameter section of the system?
