Practice exam review and test-day strategy

Two weeks before her exam date in mid-March, Ana sat at the kitchen table with a timed practice set, her tabbed code book, the bound copy of 527 CMR 12.00 and a pad of scratch paper. Her friend Marco had failed Part I the year before with 53, three short of the 56 he needed. "I knew the material," he told her. "I ran out of time on the calculations and guessed the last twelve." Ana's plan for the last two weeks was built around not repeating that.

This lesson pulls the course together into a final review plan: how to use practice exams, how to keep and use a miss log, how to pace the two parts, how to read questions carefully, how to use the code book and the Part II references quickly, and how to handle test day itself.

What the exam looks like, one more time

The master exam has two parts. Part I is the code part, with 80 questions in 240 minutes, using the NEC, NFPA 72 and the Massachusetts amendments in 527 CMR 12.00. Part II covers business and law, with 50 questions in 120 minutes, using the NASCLA guide and the Massachusetts laws and regulations named in the bulletin. Each part is scored separately, and each requires 70 out of 100 correct to pass: 56 on Part I and 35 on Part II. A candidate who passes one part and fails the other retakes only the part not passed, within the time limits in the bulletin.

Using practice exams

A practice exam is a measuring tool, not a study method. Ana took a full timed practice set for each part at the start of her final month, scored it and then sorted every miss by cause. She took a second full set ten days later and a third, shorter set three days before the exam. Between them, she studied the topics the misses pointed to. Practice sets from different providers vary in quality, and none of them is the real exam, so the score matters less than the pattern of misses.

The miss log

Every missed question goes in the log with four facts: the topic, the reference and section where the answer is found, why it was missed and what to do about it. Most misses fall into a few causes: did not know the rule, could not find it in time, misread the question, made a calculation error or ran out of time. Each cause has a different fix. Not knowing a rule means study. Not finding it means better tabs and more lookup practice. Misreading means slowing down on key words. Calculation errors mean working problems in a standard layout. Running out of time means pacing.

misses = [("Part I", "find"), ("Part I", "find"), ("Part I", "know"), ("Part I", "misread"),
          ("Part I", "calc"), ("Part I", "find"), ("Part I", "time"), ("Part II", "know"),
          ("Part II", "misread"), ("Part II", "know"), ("Part I", "calc"), ("Part II", "find")]
fixes = {"find": "retab and drill lookups", "know": "study the rule",
         "misread": "underline key words", "calc": "use one layout", "time": "pace by checkpoints"}
count = {}
for part, cause in misses:
    count[cause] = count.get(cause, 0) + 1
for cause, n in sorted(count.items(), key=lambda kv: -kv[1]):
    print(f"{cause:8} {n:2}  ->  {fixes[cause]}")

find      4  ->  retab and drill lookups
know      3  ->  study the rule
misread   2  ->  underline key words
calc      2  ->  use one layout
time      1  ->  pace by checkpoints

Ana's log showed that lookup speed, not knowledge, was her biggest problem on Part I. She spent the next week drilling lookups: twenty random topics a night, each found in the index and then in the article, timed. Her average lookup time fell from about two and a half minutes to under a minute, which on an 80-question exam is the difference between finishing and guessing.

Pacing

Part I allows an average of three minutes a question, but the questions are not equal. A direct rule question takes thirty seconds if you know where it is; a load calculation can take six minutes. The two-pass method handles this. On the first pass, answer every question you can do quickly and mark the rest. On the second pass, go back to the marked questions with the time that is left. Set checkpoints: on Part I, about 25 questions answered by the one-hour mark on the first pass, and the first pass finished with at least an hour to spare. Never leave a question blank; the score is the number answered correctly, so a blank can only cost a point.

def checkpoints(questions, minutes, marks=4):
    per = minutes / questions
    for k in range(1, marks + 1):
        t = minutes * k / marks
        print(f"   at {t:5.0f} min: about {t / per:3.0f} questions done")

for name, q, m in [("Part I", 80, 240), ("Part II", 50, 120)]:
    print(name, f"({m / q:.1f} min per question on average)")
    checkpoints(q, m)

Part I (3.0 min per question on average)
   at    60 min: about  20 questions done
   at   120 min: about  40 questions done
   at   180 min: about  60 questions done
   at   240 min: about  80 questions done
Part II (2.4 min per question on average)
   at    30 min: about  12 questions done
   at    60 min: about  25 questions done
   at    90 min: about  38 questions done
   at   120 min: about  50 questions done

Reading the question

Many misses come from reading too fast. Key words change the answer: minimum or maximum, shall or may, dwelling or commercial, copper or aluminum, continuous or noncontinuous, indoors or outdoors, the 2023 or 2026 edition. Ana underlined those words in every practice question until it became a habit. For Massachusetts questions, she asked a second question each time: has the state amended this section? A Part I question about ground-fault protection near a kitchen sink is exactly where the Massachusetts amendment can change the answer from the base NEC.

Using the references fast

The bulletin allows highlighting and underlining in the references but no handwritten notes, and allows formulas to be written on blank pages provided they meet the bulletin's rules. Permanent tabs are generally allowed if they are not written notes; check the bulletin's exact wording and what PSI staff will check at the door. For Part II, Ana made sure she could find each statute and regulation quickly: chapter 141, the 237 CMR regulations on licensing and business licensure, chapters 151 and 152, the lien provisions of chapter 254, the unemployment employer guide and the OSHA excerpts. Many Part II questions are direct lookups if you know which document holds the answer.

Test day

Ana's test-day plan was simple. The night before, she packed the references, checked them against the bulletin's list, removed loose papers and put her two forms of identification in the bag. She slept, ate breakfast and arrived at the Worcester test center 30 minutes early. During the exam she used the two-pass method, checked the clock at each checkpoint and took one short break in Part I to stretch. When a question rattled her, she marked it and moved on instead of letting it eat ten minutes.

If the score report shows a fail on one part, the bulletin's rules set the next steps: a waiting period before rescheduling, limits on the number of attempts and the time allowed to pass both parts, and further education after repeated failures under 237 CMR 14.00. A failing score report shows performance by area, which is exactly what the next miss log needs.

The final two weeks

Ana's last two weeks were structured, not frantic. She stopped learning new topics with five days left and spent the remaining time on lookups, her miss log and two short timed sets. She reviewed the Massachusetts amendments once more, re-read her one-page list of formulas and checked every reference against the bulletin's list. She also drove to the Worcester test center one evening to check the route, the parking and how long the trip took at the time of day she would travel.

After the exam

A candidate who passes both parts pays the license fee and receives the license as the bulletin and the Board describe, then has a new set of responsibilities. For Ana that meant planning her first master renewal, as Lesson 11 describes, and preparing to become Quabbin's licensee of record, as Lesson 7 describes. A candidate who passes one part keeps that score for the period the bulletin allows and focuses on the other.

A candidate who fails should treat the score report as data. Performance by area shows where the misses came from, and the miss log method applies again. Marco did exactly that after his 53: he found that most of his misses were in load calculations and grounding, drilled those for a month, and passed Part I on his second attempt with time to spare. The difference was not that he knew more code; it was that he found it faster and finished the exam.

Finally, Ana kept her expectations steady. She knew some questions would be unfamiliar and that a few would feel unfair. The plan did not depend on knowing every answer; it depended on answering the ones she knew quickly, finding the ones she could look up and making sensible choices on the rest.