El método _____ describe una prueba de resistencia a tierra que utiliza un medidor de resistencia a tierra.

a. de un punto
b. de tres puntos
c. de seis puntos
d. de diez puntos


b. de tres puntos

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The water pump drive belt should be checked for ________.

A) Wear using a gauge B) Proper tension C) Condition D) All of the above

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Door swags need to be sprayed with water to keep fresh

Indicate whether the statement is true or false

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Why does the EPA NOT require that all leaks be fixed?

A) Charges under 50 lb are exempt. B) Type III systems are exempt. C) Publicly owned systems are exempt. D) Residential units are always exempt.

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The unit run is always ________ for common rafters

A) 12 B) 17 C) 24 D) 6

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