What is the heart of the refrigerant system?
What will be an ideal response?
The refrigerant compressor is the heart of the refrigerant system. Its purpose is to compress and pump refrigerant through the system. This specially designed pump raises the pressure of the refrigerant from approximately 20-30 psi to approximately 180-220 psi.
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The main power that is supplied to industries in the United States is three phase (3F), ____ volts alternating current (VAC), at a frequency of 60 Hertz (Hz).
a. 480 b. 240 c. 120 d. 24
What percentage means half of a number or value?
a. 100% b. 75% c. 50% d. 25%
____________________ controls the bead shape by serving as a dam or mold, and also serves as a blanket to slow the weld's cooling rate, which improves its physical properties.
Fill in the blank(s) with the appropriate word(s).
Growing plants from seed is more expensive than growing them from cuttings
Indicate whether the statement is true or false