Journeyman Electrician Exam prep Questions With Correct Answers

What table sizes bonding jumpers for for AC systems? - Answer 250.102(C)(1) The NEC defines continuous load to be a load where max current on the circuit continues for at least how many hours? - Answer Three To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than how many current carrying conductors in a raceway? - Answer Greater than three Where in the NEC codebook would you find EMT sizes for a given size and number of conductors? - Answer Annex C, Table C.1 Section 210.20(A) states that the over current protection for branch circuits including continuous loads must be greater than 100% of the noncontinuous plus ____ of the continuous load. - Answer 125% Liquidtight Flexible Metal Conduit shall be fastened within of each box or other conduit termination - Answer Twelve inches 314.28(A)(1) states that straight pulls in pull boxes with conductors size 4 AWG or larger, box length should be greater than or equal to times the trade diameter of the largest conduit entering box. - Answer Eight Chapter 9 note 4 states conduit nipples less than 24 inches can fill to a max of their cross sectional area - Answer 60 percent Table 348.22 gives the max number of insulated conductors in size _______ FMC? - Answer 3/8 (trade size) Guest rooms of hotels, motels, & sleeping rooms in dorms need a MIN or _____ general purpose receptacles installed that are readily accessible? - Answer Two When branch-circuit conductors are contained inside a ballast compartment and they are within 3 inches of the ballast, the conductors shall have a temperature rating of at LEAST _____. a) 105 degrees C b) 90 degrees C c) 75 degrees C d) 60 degrees C - Answer B: 90 degrees C Ref: 410.68 Class _____ locations are those that are hazardous because of the presence of easily ignitible fibers or materials producing combustible flyings. a) I b) II c) III d) IV - Answer C: III Ref: 500.5(D) Class _____ locations are those in which flammable gases, flammable liquid produced vapors, or combustible liquid produced vapors are present that are explodable. - Answer Class 1 Class ____ locations are those that are hazardous because of combustible dust - Answer Class II Conductors with _______ Insulation have a greater ampacity when used in a dry location compared to when used in a wet location - Answer THHW When calculating total load for buildings and finding minimum branch circuit load, what must be factored into the volt amps for an exterior electric sign? - Answer Demand load (1.25) Table C.11 and C.11(A) show conductor numbers for size for schedule 40 PVC, what is the difference in charts? - Answer Compact vs stranded conductors 332.30 states that type MI cable shall be supported at intervals of at least how many feet? - Answer Six feet