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100+ Free MS Sign Erection Practice Questions

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2026 Statistics

Key Facts: MS Sign Erection Exam

70%

Passing Score

PSI MS Contractor Bulletin 4/23/2026

50 Q

Official Exam Questions

PSI MS Contractor Bulletin 4/23/2026

2 hours

Time Allowed

PSI MS Contractor Bulletin 4/23/2026

$120

PSI Exam Fee

PSI MS Contractor Bulletin 4/23/2026

Open book

Exam Format

PSI MS Contractor Bulletin 4/23/2026

MS Sign Erection PSI trade exam: 50 questions, 70% pass, 2 hours, fee $120. Open-book MSBOC classification (bulletin 4/23/2026).

Sample MS Sign Erection Practice Questions

Try these sample questions to test your MS Sign Erection exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1NEC Article 600 covers the installation of conductors, equipment, and field wiring for which of the following?
A.Electric signs, outline lighting, skeleton tubing, and listed retrofit kits
B.Highway traffic signals and roadway guide signs only
C.Interior dwelling luminaires and track lighting only
D.Utility-owned distribution transformers on public rights-of-way
Explanation: Article 600 applies to electric signs, outline lighting, skeleton tubing, and retrofit kits, including field wiring of those systems. Mississippi Sign Erection work is commercial sign wiring, installation, and erection under that article. Highway and street signs belong to the Traffic Control classification, not this trade exam.
2Each commercial building or occupancy accessible to pedestrians must be provided with at least one accessible sign outlet supplied by which branch circuit?
A.A 15-ampere multioutlet lighting circuit that also serves show-window receptacles
B.An individual branch circuit rated at least 20 amperes that supplies no other load
C.A 30-ampere dryer circuit shared with the tenant space
D.A 40-ampere feeder tap taken from the HVAC equipment circuit
Explanation: NEC 600.5(A) requires an accessible outlet at the entrance of each pedestrian-accessible commercial occupancy, supplied by an individual branch circuit rated at least 20 amperes. That circuit may not supply other loads. The rule exists so a listed electric sign can be connected without overloading a general lighting or receptacle circuit.
3Branch circuits that supply neon tubing installations shall not be rated in excess of:
A.15 amperes
B.20 amperes
C.30 amperes
D.50 amperes
Explanation: NEC 600.5(B) limits neon-tubing branch circuits to 30 amperes. All other signs and outline lighting systems are limited to 20 amperes. The higher neon limit reflects transformer inrush and secondary loading, but the circuit is still a continuous load and must be calculated at 125 percent.
4Except for neon tubing installations, branch circuits that supply signs and outline lighting systems shall not be rated more than:
A.15 amperes
B.20 amperes
C.30 amperes
D.60 amperes
Explanation: NEC 600.5(B) caps non-neon sign and outline-lighting branch circuits at 20 amperes. LED cabinets, fluorescent faces, and most channel letters therefore land on 15- or 20-ampere circuits. Neon is the only Article 600 system allowed a 30-ampere branch circuit.
5For load calculations, branch circuits that supply electric signs are treated as:
A.Noncontinuous loads sized at 80 percent of nameplate
B.Intermittent motor loads sized at 250 percent of running current
C.Continuous loads
D.Optional standby loads that may be ignored in the service calculation
Explanation: NEC 600.5 treats sign branch circuits as continuous loads because signs typically operate for three hours or more. Conductors and overcurrent devices must therefore be sized at not less than 125 percent of the continuous load. Treating a sign as noncontinuous under-sizes the circuit.
6Each circuit that supplies a sign, outline lighting system, or skeleton tubing must be controlled by an externally operable switch or circuit breaker that:
A.Opens the grounded conductor only
B.Opens all ungrounded conductors
C.Opens the equipment grounding conductor first
D.Bypasses the controller so the sign stays energized for service
Explanation: NEC 600.6 requires an externally operable disconnect that opens all ungrounded supply conductors. On a multiwire branch circuit the ungrounded conductors must open simultaneously. The grounded conductor and equipment grounding conductor are not used as the disconnecting means.
7In the NEC, a disconnect that is “within sight from” a sign must be visible and not more than how far from the sign?
A.25 feet
B.50 feet
C.75 feet
D.100 feet
Explanation: Article 100 defines “within sight from” as visible and not more than 50 feet distant. NEC 600.6 uses that definition when the disconnect is located at the sign. If any energizable section is out of sight, the disconnect must also be lockable in the open position.
8Bonding conductors used on signs and outline lighting systems must be copper and not smaller than:
A.18 AWG
B.16 AWG
C.14 AWG
D.8 AWG
Explanation: NEC 600.7 requires copper bonding conductors not smaller than 14 AWG. The equipment grounding conductor of the supply circuit is still sized from Table 250.122, but the sign-bonding jumper itself has a 14 AWG copper floor. Smaller fixture wire is not an acceptable bonding means.
9Why must the earth not be used as the effective ground-fault current path for a metal sign structure?
A.Soil resistance is too high to reliably open the overcurrent device
B.Concrete footings already provide a zero-ohm return path
C.The NEC requires the grounded conductor to be landed on the pole only
D.Sign circuits are ungrounded delta systems that cannot fault to earth
Explanation: NEC 250.4 and 600.7 prohibit using the earth as the effective ground-fault current path. Electrode-to-soil resistance is high, so fault current often will not rise enough to trip the breaker. Metal parts can remain energized. A low-impedance equipment grounding conductor back to the source is required.
10Unless mechanically protected from physical damage, a sign or outline lighting system must be at least how high above areas accessible to vehicles?
A.8 feet
B.10 feet
C.14 feet
D.18 feet
Explanation: NEC 600.9(A) requires 14 feet of clearance above vehicle-accessible areas unless the sign is mechanically protected. That is a sign-body clearance, not the overhead-conductor clearance in 225.18. Public streets and truck parking can still require 18 feet for overhead supply conductors.

About the MS Sign Erection Exam

Mississippi Sign Erection Contractor Examination is a classification trade examination administered by PSI for the Mississippi State Board of Contractors. The official open-book exam has 50 questions, a 70% passing standard, and 2 hours allowed. PSI examination fee is $120 per portion (bulletin updated 4/23/2026). This English-language MCQ bank is a study aid for the official content outline; it is not an official PSI form, does not replace the required Law and Business Management exam, and is not a substitute for MSBOC application review or the official open-book examination.

Questions

50 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

$120 (PSI Services LLC (for Mississippi State Board of Contractors))

MS Sign Erection Exam Content Outline

60%

Electrical

Sign wiring and electrical connection

20%

Safety

Sign erection safety

20%

Installation

Sign mounting and erection

How to Pass the MS Sign Erection Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 50 questions
  • Time limit: 2 hours
  • Exam fee: $120

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

MS Sign Erection Study Tips from Top Performers

1Study only the approved references listed for this classification in the current PSI Mississippi Contractor bulletin (updated 4/23/2026)
2Practice open-book navigation with permanent tabs and indexes before test day
3Drill OSHA 29 CFR 1926 topics that appear across nearly every trade outline
4Confirm MSBOC classification scope and eligibility at msboc.us before scheduling with PSI
5All applicants must also pass Law and Business Management unless it is waived

Frequently Asked Questions

How many questions are on the MS Sign Erection exam?

The official PSI examination has 50 scored questions (plus possible unscored experimental items). Passing is 70% within 2 hours.

How much does the MS Sign Erection exam cost?

PSI lists $120 per examination portion (Candidate Information Bulletin updated 4/23/2026). MSBOC application fees are separate: $400 commercial or $50 residential. Additional classifications are $100 each.

Is the Mississippi contractor exam open book?

Yes. PSI administers MSBOC classification exams as open book. Only bulletin-listed approved references are allowed; temporary tabs such as Post-it notes are prohibited.

Do I still need the Law and Business Management exam?

Yes. MSBOC requires the Mississippi Law and Business Management exam (50 questions, 70%, 2 hours) of all applicants. Reciprocity may waive a trade exam in some cases but does not waive Law and Business.