¿Cuál de los siguientes elementos se considera un buen conductor de la electricidad?
a. Porcelana
b. Cobre
c. Silicona
d. Germanio
b. Cobre
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When mounting an air handler on a concrete floor for seismic restraint, use _____.
a. housed-spring devices with snubbers b. housed-spring devices with bumpers c. open-spring devices without snubbers d. open-spring devices with bumpers
Technician A says carbon-removal additives are work well when added prior to removing the engine. Technician B says carbon-removal additives should be used only in a well-ventilated area. Who is right?
A. Technician A B. Technician B C. Both technicians D. Neither technician
6.7 × 8 =
A) 536 B) 0.536 C) 5.36 D) 53.6
If there is more than one path for current to flow between two points in a circuit with two or more resistors, the circuit is a ____ circuit.
A. series B. parallel C. series-parallel D. resistive