Free · NEC 2026 · TDLR / PSI format

Texas Journeyman Electrician Practice Test

Try the five sample questions below, then take the free 25-question practice test. It scores you on both exam parts and every blueprint area, and lists the article numbers to study for everything you miss.

Sample questions with answers

Open your code book, pick an answer, then reveal the explanation. Explanations cite article numbers only.

1. Question 1 · NEC Knowledge

   The portion of a grounding electrode conductor that is the sole connection to a rod, pipe, or plate electrode is not required to be larger than:

   • A.8 AWG copper
   • B.6 AWG copper
   • C.4 AWG copper
   • D.2 AWG copper
   Show answer

   Answer: B. Section 250.66(A) caps the grounding electrode conductor to a rod, pipe or plate electrode at 6 AWG copper (or 4 AWG aluminum) when that conductor connects to nothing but the rod/pipe/plate. Larger service conductors do not force a larger conductor to these electrodes.

   See 250.66(A)

2. Question 2 · NEC Knowledge

   The total of all bends in a run of EMT between pull points shall not exceed:

   • A.180 degrees
   • B.270 degrees
   • C.360 degrees
   • D.450 degrees
   Show answer

   Answer: C. Article 358 limits the bends between pull points (boxes, conduit bodies, etc.) to 360 degrees total, counting every offset and kick. The same limit appears in most raceway articles, so one answer covers EMT, RMC, PVC and others.

   See 358.26

3. Question 3 · NEC Knowledge

   A 15- or 20-ampere, 125-volt receptacle is installed outdoors in a wet location. Its enclosure must be weatherproof:

   • A.Only while the cover is closed
   • B.Whether or not an attachment plug cap is inserted
   • C.Only when the receptacle is not in use
   • D.Not required if the receptacle is GFCI protected
   Show answer

   Answer: B. Section 406.9(B)(1) requires an enclosure that is weatherproof whether or not the plug is inserted for 15- and 20-ampere, 125- and 250-volt receptacles in wet locations; this is the 'in-use' (bubble) cover requirement. GFCI protection is a separate requirement and does not substitute for the enclosure.

   See 406.9(B)(1)

4. Question 4 · NEC Knowledge

   What is the maximum percentage of a conduit's cross-sectional area that may be filled when it contains three or more conductors?

   • A.31%
   • B.40%
   • C.53%
   • D.60%
   Show answer

   Answer: B. Chapter 9, Table 1 sets fill by conductor count: one conductor, two conductors, and over two conductors each have their own maximum, and the over-two case is 40 percent. The Table 4 columns you use for raceway sizing are pre-computed from these percentages.

   See Chapter 9, Table 1, Chapter 9, Table 4

5. Question 5 · Calculations

   A 240-volt, single-phase resistive heater is rated 7,200 watts. What current does it draw?

   • A.15 A
   • B.30 A
   • C.45 A
   • D.60 A
   Show answer

   Answer: B. For a single-phase resistive load, I = P ÷ V = 7,200 ÷ 240 = 30 A. There is no power factor or √3 term for a single-phase resistive load.