Una grúa transmite su potencia al cable a través de _____.

a. el tambor del motor para levantar cargas
b. la pluma
c. el bloque
d. las poleas


a. el tambor del motor para levantar cargas

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Variable frequency drives intended to control the speed of  motors up to 500 HP generally use ____________________.

Fill in the blank(s) with the appropriate word(s).

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The condenser ____________________ heat.

Fill in the blank(s) with the appropriate word(s).

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What is the approximate maximum output voltage swing for a 741 op amp powered by a ±15 V supply?

A. 0 to 15 V B. ?13.6 to 15 V C. ?15 to 15 V D. 0 to 13.6 V E. ?13.6 to 13.6 V

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Testing for galvanic activity is done with the coolant ________ and the engine ________

A) Warm; running B) Cool; running C) Warm; engine not running D) Cool; not running

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