Which of the following describes the standard in NFPA 70E®?
a. A worker with a disability has equal rights to employment.
b. Employers with greater than 10 employees must keep records of work-related injuries
and illnesses.
c. Safe work practices must be applied when working on or near exposed energized parts.
d. All tools, equipment, and machines must be inspected by the employer before use.
c. Safe work practices must be applied when working on or near exposed energized parts.
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Cite four statistics that demonstrate the importance of transportation in the United States.
What will be an ideal response?
Service-entrance and overhead service conductors shall be arranged so that ____.
A. lightening rods will extend above them B. water shall not enter the service raceway or equipment C. sealed service head is not exposed D. the main body is supported by rigid masting
Which of the following accurately describes the danger of air in the refrigeration system?
A) The presence of air makes it impossible to connect a vacuum pump, which is necessary to perform the evacuation procedure. B) Oxygen may violently react with hydrogen and potentially cause a fire within the refrigeration system. C) Too much air makes it impossible to properly calibrate an analog vacuum gauge within the refrigeration system. D) Oxygen will chemically react with the refrigeration oil and deposits buildup in the discharge valve area, causing compressor motor burnouts.
A water-source system that gets its water from a well and does not reuse the water is:
A) A closed-loop system. B) An open-loop system. C) Considered a hybrid between an open- and a closed-loop system. D) Called a quasi-closed loop because it still uses a circulating pump.