In a print, a list of all the parts required to fabricate an object would be found in the _____
a. bill of materials
b. exploded view
c. local notes
d. title notes
a
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¿Qué parte de las calderas aisladas en fábrica podrían requerir aislamiento?
a. Los hogares b. Los colectores de salida c. Los extremos del tambor d. Las paredes laterales
Tanto los motores de inducción como los sincrónicos funcionan con el principio de un campo ______ giratorio.
a. de impedancia b. magnético c. de capacitancia d. de reactancia
When terminating conductors with mechanical lugs it is important to _____.
a. tighten them as much as possible b. use at least five threads c. check with the local utility beforehand d. follow manufacturers’ requirements
Answer the following statement(s) true (T) or false (F)
1.There is no need to connect a white insulated grounded conductor to any single-pole, double-pole, three-way, or four-way switch in a residential switching circuit. 2.If the circuit-equipment grounding conductor is connected to the green grounding terminal on a switch, there is no need to ground the metal device box in which the switch is installed. 3.The white wire used in a traditional switch loop wired with a two-wire cable like Type NM must be reidentified. This is normally done with black electrical tape. 4.When wiring a house using conduit, the NEC® permits a white insulated conductor to be used as a “hot” conductor in a switch loop as long as it is reidentified as such. 5.Switch loops are not permitted in three-way switch circuits.