Journeyman Electrician #2 Already Graded A+

Journeyman Electrician #2 Already Graded A+ 1. Motor control circuits should be set up to disconnect from all power sources when _____ occurs. - a) the disconnecting means is in the open position. (Correct Answer: a) the disconnecting means is in the open position) - b) the disconnecting means is not within sight of the controller - c) the disconnecting means is integral with the controller - d) installed in a motor control center - Reference: 430.75(A) 2. What is permissible for closing an unused circuit breaker slot in panelboards? - a) Installation of a closure plate or other device that fits securely and closes the opening. - b) Installation of a spare or unused circuit breaker that fills the opening and is listed for the panelboard. - c) Installation of a closure plate listed for the purpose by the manufacturer. - d) All of these are permitted. (Correct Answer: d) All of these are permitted) - Reference: 408.7 3. For commercial buildings, general-purpose receptacle loads must be calculated at a minimum of _____ VA per single or duplex receptacle before applying demand factors. - a) 100 - b) 120 - c) 150 - d) 180 (Correct Answer: d) 180) - Reference: 220.14(I) 4. Which listed conductor insulation has a higher temperature rating when used in dry locations compared to wet locations? - a) THW - b) RHW - c) THWN - d) THHW (Correct Answer: d) THHW) - Reference: Tbl. 310.13(A); Tbl. 310.16 5. Which of the following scenarios concerning grounding would NOT comply with NEC standards? - I. Steel reinforcing bars intended for concrete foundations but not connected to the grounding system. - II. Concrete foundations with steel reinforcing bars that were unavailable for grounding because the concrete was poured before the electrical contractor arrived. - a) I only (Correct Answer: a) I only) - b) II only - c) both I and II - d) neither I nor II - Reference: 250.50, Ex. 6. In a healthcare facility, low-voltage electrical equipment, likely to be energized and frequently in contact with patients, must operate on a voltage of _____ volts or less unless it is approved as intrinsically safe, double-insulated, or moisture-resistant. - a) 10 (Correct Answer: a) 10) - b) 24 - c) 100 - d) 120 - Reference: 517.64(A)(1), (2), and (3) 7. When ambient temperature is not a concern, what is the MAXIMUM allowable ampacity of a size 8 AWG single copper conductor with FEPB insulation installed in free air? - a) 80 amperes (Correct Answer: a) 80 amperes) - b) 55 amperes - c) 45 amperes - d) 83 amperes - Reference: Tbl. 310.17 For the purpose of determining conductor fill in a device box, a switch is counted as equal to _____ conductor(s), based on the largest conductor connected to the switch. a) no b) one c) two d) three C: two Ref: 314.16(4) When determining the required ampacity of the branch-circuit conductors to supply an AC three-phase, continuous-duty motor, current values of the motor given on _____ shall be used. a) the motors name b) Table 430.248 c) Table 430.52 d) Table 430.250 D: Table 430.250 Ref: 430.6(A)(1) When calculating the total load for a commercial building, what is the MINIMUM computed load, in volt amps, required by the NEC for a branch-circuit supplying an exterior sign? a) 1,200 volt-amps b) 1,800 volt-amps c) 1,500 volt-amps d) 2,000 volt-amps A: 1,200 volt-amps Ref: 220.14(F) Determine the MAXIMUM number of size 1 AWG XHHW compact conductors permitted in a trade size 3 inch, Schedule 40 rigid PVC conduit that is 100 feet long.