NFPA 70E Questions and Answers Already Passed

NFPA 70E Questions and Answers Already Passed 2. For exposed 480 VAC energized conductors and using NFPA 70E Table 130.2(C) or the Shock Protection Boundaries and PPE Fermilab Summary table for NFPA 70E, the Restricted Approach Boundary for shock protection is a. 1 Inch b. 7 Inches c. 1 Foot d. 3 Feet 6 Inches c 3. For energized circuits, escorted unqualified persons are allowed within which Shock Protection Approach Boundaries? a. Restricted Approach Boundary b. Limited and Restricted Approach Boundaries c. Limited Approach Boundary d. Prohibited Approach Boundary c 6. If an electrical circuit that normally operates above 50 volts has been de-energized but not tested to verify that the circuit is in an electrically safe work condition, which of the following apply? a. Requirements associated with Shock Protection Boundaries must be followed b. Requirements associated with the Flash Protection Boundary must be followed c. NFPA 70E does not require a written Energized Electrical Work Permit for performing LOTO voltage verification testing d. All of the above apply d 8. Voltmeter testing of a 480 VAC 3 Phase Circuit to verify that the circuit is OFF typically involves a. 3 measurements of phase to phase voltage b. 3 measurements of phase to ground voltage c. 3 measurements of phase to neutral voltage d. All of the above measurements are necessary d 9. What is the maximum use voltage of Class 0 rubber insulating gloves? a. 500 Volts AC b. 1,000 Volts AC c. 7,500 Volta AC d. 26,500 Volts AC e. 36,000 Volts AC b 10. A primary factor relating to serious arc-flash is a. High voltage b. Available fault current c. Presence of supervisors during the arc-flash event d. Ambient temperature b 11. When performing electrical work that involves exposure to circuit parts or wiring that are either energized or have not been tested and found to be de-energized, it is most important to: a. Understand and protect yourself from the shock hazard b. Understand and protect yourself from the arc-flash hazard c. Both a. and b. d. Get the work done in the allotted time c