Which of the following factors affects how much you adjust the charge of a newly installed split system?
A) the amount of refrigerant in the system when you open the valves
B) the recommendation of the refrigerant cylinder manufacturer
C) the charge allowance adjustment per foot of liquid line over 15 feet
D) the length of the vapor line on the cylinder
C
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8. The greatest advantage of using direct current motors is their variable ____________________ characteristic.
Fill in the blank(s) with the appropriate word(s).
A snug-tight connection between framing members is obtained by
A) bolting the members and tightening them with a spud wrench using full force. B) welding the members together using gas welding. C) welding the members together using arc welding. D) bolting the members and tightening them with a spud wrench. E) none of the above.
Find the input impedance of the circuit in Fig. 13.102.
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Two technicians are discussing the measurement of antifreeze concentration in coolant. Technician A uses a hydrometer to test the coolant. Technician B uses a refractometer to test the coolant. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B