Permanent antifreeze is mostly ________
A) Glycerin B) Methanol C) Ethylene glycol D) Kerosene
C
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The FCA welding equipment, setup, and operation are similar to that of the GTA welding process.
Answer the following statement true (T) or false (F)
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Greenhouses that are near natural hot water springs can use the springs as a heat source
Indicate whether the statement is true or false.
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In the circuit of Fig. 8.104, the switch has been in position 1 for a long time but moved to position 2 at t = 0. Find:
 FIGURE 1.png)
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What is the function of an energy recovery unit?
A) To recover energy used to cool electric motors B) To use waste heat for on-site power generation C) To recover waste heat from a combustion process D) To exchange heat between outdoor air being introduced for ventilation and exhaust air
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