The purpose of performing an arc flash risk assessment is to _____.
a. complete the requirements of the permit form so the work can be done
b. anticipate the incident energy at the work location and set the arc flash boundary
c. identify the limited approach boundary
d. calculate the electrical system parameters
b. anticipate the incident energy at the work location and set the arc flash boundary
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Find angle X, in degrees.
What must be done to the wafer lug butterfly valve itself just prior to installation?
a. Lubricate the shaft. b. Open the valve. c. Close the valve. d. Align the flanges.
Evaluate: (-2) + 10 + 5 + (-6) + (-4) + 20.
Fill in the blank(s) with the appropriate word(s).
The volume of a brick of gold is = 1,449 ± 17 cm3. The density of gold is 19.3 gm/cm3. What is the mass of a brick of gold?
What will be an ideal response?