A bi-flow thermostatic expansion valve:
A) Can be used with two different refrigerants by selecting the correct flow.
B) Can be used with two different capacity units by selecting the correct flow.
C) Allows refrigerant flow in both directions.
D) Can be used for creating two stages of heating or cooling.
C
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Si junto a la escalera, hay soportes adicionales de seguridad, se les debe utilizar:
a. en superficies húmedas o resbaladizas. b. en superficies irregulares o inestables. c. siempre que se use la escalera. d. cuando se sube a más de 6 pies (1,83 m) de altura.
Commercial buildings may require a thicker wall, where the electrical service panel is flush mounted and the panel box is deeper than the standard 3 1/2-inch wall.
Answer the following statement true (T) or false (F)
The circuit of Fig. 11.95 portrays a wattmeter connected into an ac network.
(a) Find the load current.
(b) Calculate the wattmeter reading.
 figure 1.png)
Soldering is the preferred method of copper wire.
Answer the following statement true (T) or false (F)