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).
____ is the rate at which combustion will move across a material.
A. Smoke development B. Fuel contribution C. Fuel spread D. Flame spread
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
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