Which of the following is a correct statement regarding personal protective equipment?
a. If tennis shoes are worn while welding, spats must also be worn.
b. Leathers are only needed during cutting operations.
c. Disposable earplugs are the most common form of hearing protection used in welding.
d. The minimum protective shade of eye protection for SMAW is 4.
c
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Lo más probable es que el revestimiento con chapa de metal se instale sobre el aislamiento en _____.
a. calderas b. conductos de humo c. precipitadores d. Todos los anteriores
One reason for using silks is that a design specification may call for a look lush with tropical foliage,
but ____ will not support the toughest, low-light, live plants for more than a few months.
a. the indoor air quality c. available light levels b. the indoor temperature d. indoor humidity levels
One of the highest levels of verbal communication occurs when speakers use what to make their points?