Una carga de tubos se eleva más comúnmente con _____.

a. vigas de izamiento

b. cuerdas de un torno iza-
dor que envuelven la

carga
c. orejetas de izamiento
d. obturadores y eslingas


Answer: D

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MCRs are sometimes called Master Control ____________________ because they reset the output to zero or OFF.

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

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____ is the rate at which combustion will move across a material.

A. Smoke development B. Fuel contribution C. Fuel spread D. Flame spread

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NEC® requirements must be adhered to when installing incandescent recessed lighting fixtures because they _____

a. are a fire hazard if installed incorrectly b. may never come in contact with thermal insulation c. must always be of the airtight type d. must always be I.C. rated

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Which of the following terms describes the amount of heat energy in a fuel?

A. calorific value B. cetane number C. fire point D. volatility

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