Installing nail-on device boxes, panelboards, and lighting fixtures in new houses are tasks performed by _____.

a. commercial electricians
b. electrical maintenance technicians
c. industrial electricians
d. residential electricians


d. residential electricians

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¿En qué formato NO se emplea la lana mineral a nivel comercial?

a. Aislamiento preformado para tuberías b. Revestimiento de conductos c. Plancha d. Relleno suelto

Trades & Technology

An advantage of using fiberglass duct instead of sheet metal is that _____.

a. fiberglass is heavier than sheet metal b. fiberglass can be used with only a thin layer of additional insulation c. fiberglass lowers the air leakage rate d. all fiberglass duct is flexible

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____ react to temperature, airflow, engine load, road speed, and oxygen content in the exhaust stream.

A. Torques B. Actuators C. Pistons D. Sensors

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An organism that subsists by eating predators would function as a(n) ________ in the soil ecosystem

A) decomposer B) primary consumer C) tertiary consumer D) detritivore E) all of the above

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