An arcing fault current is always less than the available bolted fault current value at a specific location. True/False - True, The percentage of current flow shown in the figure is approximately _____as compared to a 3-phase bolted fault current. A. 87% B. 89%  C. 99% D. 25% to 125% - A. 87%, An inverse time-current characteristic is defined as the higher the overcurrent level, the faster the reaction time or interrupting time of the overcurrent device. True/False - True, The speed of response of an OCPD when interrupting an overcurrent that is____ the OCPD's ampere rating can vary depending upon the magnitude of the overcurrent. A. equal to B. greater than C. less than d. all of the above c. less than - b. greater than, T/F Fuse time-current curves and circuit breaker time-current curves are always the same shape. - False, An OCPD was caused to open in 0.01 second. What type of overcurrent most likely caused this OCPD device to open in this time? A. inverse time current B. overloads C. short circuit D. time current curve  - C. short circuit, he circuit conductors between the final overcurrent device protecting the circuit and the outlet(s) best defines a(n) _____? A. branch circuit B. feeder C. service D. utility  - a. branch circuit, Which of the following is not a rating used when selecting overcurrent protective devices? a. Ampere rating b. Frame size c. Interrupting rating d. Voltage rating - b. Frame size, The voltage of an electrical system must be equal to or greater than voltage rating of an OCPD. True/False - False, Service equipment in commercial installations is required to be field marked with the maximum available fault current and date of fault calculations. True/False - True NEC reference: 110.24(A),

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