The cleaning action by electrons leaving the surface of the metal is most important when welding on ____.
A. copper
B. zinc
C. aluminum
D. lead
Answer: C
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Las planchas o los bloques de aislamiento deberían ajustarse a la superficie a la cual se apliquen y no deben tener un vacío superior a:
a. 1/8 de pulgada (0,95 cm). b. 1/4 de pulgada (0,63 cm). c. 3/8 de pulgada (0,95 cm). d. 1/2 pulgada (1,27 cm).
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Al dimensionar cajas de salida, el equivalente de conductor de un interruptor es:
a. 1 b. 2 c. 3 d. 4
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Assume the input ripple to a 7812 regulator is 80mV. What is the output ripple if the ripple rejection ratio is 72 dB
A) 0.2 mV B) 20.1 ?V C) 2.01 ?V D) None of the above
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Compound windings have a shunt winding and a series winding.
Answer the following statement true (T) or false (F)
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