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1. Which one of the following applies when electrical wiring is concealed without inspection?
3801.3770
2. In a commercial building, what is the minimum size NM-B cable that can be used to supply a
115/230 volt air conditioner heat pump when the nameplate shows the rated load current to be 15.2 amps with a 25 amp max fuse or HACR circuit breaker?
220.5 (B), Table 310.16, 440.62 (A)
3. Which one of the following terms is used for the connection between the grounded circuit conductor and the supply-side bonding jumper, or the equipment grounding conductor, or both, at a separately derived system?
100
4. In addition to a separate branch circuit to supply the lighting or receptacles) in an elevator machine room or control room/ machinery space, which of the following applies?
620.23 (C)
6. Refer to Figure 18 in the diagram booklet. The drawing shows the finish material of a clothes closet. A recessed LED luminaire with totally enclosed light source is installed in the ceiling of a clothes closet shown in Figure 18. A 10 inch wide shelf will be installed on the back of side walls of the closet. What is the minimum dimension represented by "X"?
410.16 (D)(3)
7. Excluding exceptions, which of the following is NOT a requirement for the disconnecting means for the ballasts for fluorescent luminaires?
410.71
8. Which one of the following applies when a receptacle located above the countertop and within 3 feet of the outside edge of the basin of a dwelling unit bathroom is replaced if the existing wiring method does not include an equipment grounding conductor that complies with Section 250.118?
406.4 (D)(2)
9. A two-story, one family dwelling has usable floor area based on outside dimensions of
36'x40'. What is the minimum number of 15-ampere, two wire, 120 volt general lighting branch circuits required? (Do not include small appliance or laundry circuits.)
220.41
10. Which one of the following wiring methods may be used where flexibility is needed at an outdoor hot tub on a deck attached to a one family dwelling?
330.10(A)(11)(a)
11. A 75 kva transformer with a 480 volt, three wire, delta connected primary and a 120/208 volt , four wire, wye connected secondary supplies a 200 ampere lighting and appliance branch circuit panelboard. Which one of the following provides the required overcurrent protection for the panelboard?
408.36
12. Refer to Figure 9 in the Diagram Booklet. When the secondary voltage in a three phase, four wire, wye connected transformer bank is 480 volts phase to phase, what is the voltage between the ungrounded conductors and the grounded conductor?
Y EL=Ep/1.73