Todas las siguientes afirmaciones respecto de controles de estado sólido son verdaderas, EXCEPTO:

a. la electricidad estática puede dañar los microprocesadores.
b. la principal fuente de calor puede ser el calor que se genera en los dispositivos de
potencia de salida.
c. la forma en que están construidos los circuitos integrados y los tableros de circuitos
previene que los dañen los componentes atmosféricos.
d. se debe mantener una separación física entre el cableado de señal y el de alimentaci


c. la forma en que están construidos los circuitos integrados y los tableros de circuitos
previene que los dañen los componentes atmosféricos.

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A good way to prevent food-borne illness is to _____

a. monitor expiration dates on packages c. store food properly b. cook meat thoroughly d. all of the above

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What part(s) wears rapidly if a vehicle equipped with an open differential spins one wheel on ice or snow for an extended period of time?

A) Side gear B) Pinion and side gear thrust washers C) Pinion bearings D) Ring gear and pinion

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How are safety ratings for zeotropic refrigerants different than for compounds?

A) Zeotropic refrigerants use the same rating system as all other refrigerants. B) They precede the normal letter and number with the letter Z for zeotropic. C) They follow the normal letter and number rating with the letter Z for zeotropic. D) Zeotropic refrigerants are assigned a safety group classification based on the worst case of fractionation.

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To relieve hydraulic system pressure when shutting down a tractor, the operator should _____

a. place the SCVs in the continuous detent position b. place the SCV control levers in the extend position c. cycle all SCV controls through all positions and then return them to neutral d. hold the SCV control levers in the retract position when the cylinders reach the end of travel

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