What is the purpose of the phosphorous in copper phosphorous brazing rods?
What will be an ideal response?
The phosphorous cleans off the copper oxide deposits
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An average home in the United States consumed about 1,344 m3 natural gas, 224 liters of liquid petroleum gas, 220 liters of diesel fuel oil, and 3.2 liters of kerosene.
a. How much CO2 was generated per year for an average U.S. home, due to natural gas usage? b. Assume that 0.0545 kg of CO2 are emitted per cubic foot of natural gas burned. How much CO2 was emitted from household natural gas usage, if there were 111.1 million homes in the United States in 2005? c. How much CO2 will be emitted from household natural gas usage, if there are 166 million homes in the United States in 2050? What will be an ideal response?
Most MAP sensors produce what type of output signal?
A) DC milliamperes (DCA) B) Frequency (Hz) C) AC voltage (ACV) D) Analog DC voltage (DCV)
To avoid turning the hermetic compressor shell into an exploding bomb, keep the system pressure below:
A) 200 psig. B) 300 psig. C) 150 psig. D) 250 psig.
On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will his room be warmer or cooler than the neighboring rooms? Why? Assume all the doors and windows are kept closed.
What will be an ideal response?