Cuando se calcula la VA de entrada de un transformador de control, utilice la VA de entrada para todos los siguientes dispositivos del circuito de control, SALVO:
a. el interruptor de límite.
b. el relé.
c. la luz piloto.
d. el contactor.
a. el interruptor de límite.
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Which of the following statements regarding installation of a fireplace is correct?
A. Refractory mortars or portland cement mortar can be used to install the firebrick hearth. B. Heat Stop 50 should be remixed or tempered if the mortar begins to dry out during the installation. C. Mortar should be used to level the unit on the hearth. D. The fireplace form should be centered on the hearth, even with the edge of the front course of firebrick.
Because of the development of complicated machine tools, hand tools have lost their importance
Indicate whether the statement is true or false
When charging a system that uses a zeotropic refrigerant, the system should be always be charged using
_____. a. a charging cylinder b. liquid refrigerant from the cylinder c. vapor refrigerant from the cylinder d. subcooling values
The marked measurement in the figure above indicates _____
A) 2-1/8 inches
B) 2-3/16 feet
C) 2-1/4 inches
D) 2-1/2 feet