All Practice Exams

Free Practice Questions for NETA ETT Level 2

Exam-style questions and explanations by OpenExamPrep.

✓ No registration✓ No credit card
126+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More NETA ETT Certifications

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Exam Review

Key Facts: NETA ETT Level 2 Exam

4 Domains

NETA DCO Structure

ANSI/NETA ETT

200-500

Scaled Score Range

NETA Score FAQs

410

Passing Scaled Score

NETA Score FAQs

Pearson VUE

Exam Delivery

NETA / Pearson VUE

~2 years

Typical Experience

ANSI/NETA ETT

NAC

Required Employer

NETA

60 days

Retake Waiting Period

NETA Score FAQs

126

Practice Questions

OpenExamPrep

Per NETA and Pearson VUE, the NETA Level 2 Certified Assistant Technician exam is delivered closed-book at Pearson VUE test centers and is scored on a 200-500 scale with 410 as the passing scaled score (no raw-score cutoff is published). The exam covers the four ANSI/NETA ETT Detailed Content Outline domains — Safety, Electrical Testing Fundamentals and Theory, Component Testing, and Systems and Commissioning — and candidates must be employed by a NETA Accredited Company and have roughly two years of qualifying experience (technical education can credit up to one year per the standard).

Sample NETA ETT Level 2 Practice Questions

Try these sample questions to review concepts for the NETA ETT Level 2 exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 126+ question experience with AI tutoring.

1Per ANSI/NETA ETT guidelines, the Level 2 Certified Assistant Technician examination is administered by:
A.The candidate employer (Level 1 trainee path)
B.Pearson VUE under NETA's direction
C.Prometric (not the NETA exam vendor)
D.IEEE Power Engineering Society
Explanation: Per the NETA/Pearson VUE website, Levels 2, 3, and 4 certification exams are administered by Pearson VUE at authorized test centers. Level 1 Trainee assessment is conducted by the candidate's NETA Accredited Company employer.
2The passing scaled score for a NETA certification exam (including Level 2) is:
A.500 (above the passing scaled score)
B.410 on the 200-500 scaled scale
C.690 out of 800 (different exam scale)
D.70 percent (percentage scoring not used)
Explanation: Per NETA's published 'Understanding Your Certification Exam Score' document, scaled scores range from 200 to 500 and 410 is the passing scaled score established through standard setting. Raw scores are converted to scaled scores so forms remain equivalent.
3The NETA exam covers four domains. Which of the following is NOT one of those four domains?
A.Safety
B.Electrical Testing Fundamentals and Theory
C.Component Testing
D.Relay Settings and SCADA Programming
Explanation: The four ANSI/NETA ETT DCO domains are: (I) Safety, (II) Electrical Testing Fundamentals and Theory, (III) Component Testing, and (IV) Systems and Commissioning. Relay programming falls under Component/Systems, not a distinct domain.
4A 480 V motor is tested with a 1000 V DC insulation resistance test. One-minute reading is 150 megohms; 10-minute reading is 450 megohms. The Polarization Index (PI) is:
A.0.33 (inverted ratio R1/R10)
B.1.5 (below IEEE 43 good-insulation guideline)
C.3.0
D.30 (tenfold arithmetic error)
Explanation: Polarization Index = R(10 min) / R(1 min) = 450 / 150 = 3.0. Per IEEE 43, a PI of 2.0 or higher generally indicates good insulation for Class B and higher thermal classes.
5A Dielectric Absorption Ratio (DAR) is the ratio of:
A.10-minute to 1-minute insulation resistance
B.60-second to 30-second insulation
C.Test voltage to leakage current
D.Final current to initial current
Explanation: DAR = IR(60 s) / IR(30 s). It provides a quicker indication than PI, useful when a 10-minute test is impractical. DAR below 1.25 typically indicates poor insulation; above 1.6 is good.
6A transformer turns ratio (TTR) test measures:
A.The insulation resistance between primary and secondary
B.The ratio of primary turns to secondary turns
C.The transformer oil dielectric strength
D.The winding resistance in ohms per common NETA practice
Explanation: A TTR test applies a low-voltage AC source to one winding and measures the induced voltage on the other, computing the turns ratio. Per ANSI/NETA ATS/MTS, measured ratio should be within +/- 0.5% of nameplate on all taps.
7TTR deviation from nameplate exceeding what tolerance indicates potential winding problems per ANSI/NETA standards?
A.0.1 percent
B.0.5 percent
C.2 percent
D.5 percent
Explanation: ANSI/NETA ATS and MTS specify TTR measured ratios should deviate by no more than 0.5% from the calculated or nameplate ratio. Larger deviations may indicate shorted turns, tap changer problems, or winding damage.
8Winding resistance measurements on a transformer are typically performed using:
A.A simple DMM on the 200-ohm range per common NETA practice
B.A low-resistance ohmmeter with 4-wire Kelvin
C.A megohmmeter (incorrect for this application)
D.An insulation power factor test set
Explanation: Winding resistance is measured using a DC micro-ohmmeter with 4-wire (Kelvin) connections to eliminate lead resistance errors. Test current must be sufficient to magnetize the core; readings are compared phase-to-phase and against prior tests.
9A contact resistance (Ductor) test on a low-voltage circuit breaker main contact is performed to:
A.Measure insulation resistance of the contact
B.Closed-contact DC resistance in micro-ohms
C.Test the arc chute
D.Measure trip time
Explanation: A contact resistance (Ductor/micro-ohmmeter) test injects a known DC current (typically 100 A for breakers) through closed contacts and measures the voltage drop to calculate resistance. Values typically 10s to 100s of micro-ohms; compare phase-to-phase and to manufacturer specifications.
10A 'step voltage' test on cable insulation applies DC voltage in increasing steps. The primary indicator of a problem is:
A.Any change in leakage current
B.Non-linear rising leakage
C.Any reading below 1 megohm
D.The temperature of the cable
Explanation: In a step-voltage test, leakage current should be linear and stable at each voltage step for healthy insulation. A disproportionate increase in current at higher steps indicates insulation breakdown or contamination.

About the NETA ETT Level 2 Exam

NETA ETT Level 2 (Certified Assistant Technician) is the first fully certified tier in the ANSI/NETA ETT hierarchy. Level 2 technicians perform limited testing and service work under direct supervision of a Level 3 or Level 4 technician, and the exam covers four domains: Safety; Electrical Testing Fundamentals and Theory; Component Testing; and Systems and Commissioning.

Exam sponsor: NETA / Pearson VUE. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Closed-book, computer-based at Pearson VUE test centers

Time Limit

2 hours

Passing Score

Scaled score 410 (scale 200-500) per NETA

Exam / Certification Fees

Set by NETA; exam fees, retake fees, and testing windows administered through candidate's NETA Accredited Company

Exam sponsor website

Reported exam pass rate: Not publicly disclosed. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

15%

Safety

NFPA 70E approach boundaries and PPE categories, OSHA 1910 Subpart S, lockout/tagout, electrically safe work conditions, grounding for personnel protection, and test-instrument safety (Level 2 DCO, confirmed October 2015)

25%

Electrical Testing Fundamentals and Theory

Ohm's law and power, series and parallel circuits, three-phase relationships, instrument transformers, drawings and one-lines, ANSI device numbers, and short-circuit and coordination study basics

55%

Component Testing

Core subjects on every Level 2 form: switchgear, transformers, cables, switches, circuit breakers, protective relays, instrument transformers, grounding systems, ground-fault protection, motor control, DC systems, insulating liquids and gases, and fuses, tested to ANSI/NETA ATS and MTS tables

5%

Systems and Commissioning

System function tests after component testing, emergency and standby systems, as-found and as-left records, and restoring equipment to service

Preparing for the NETA ETT Level 2 Exam

What You Need to Know

  • Passing score: Scaled score 410 (scale 200-500) per NETA
  • Assessment: Closed-book, computer-based at Pearson VUE test centers
  • Time limit: 2 hours
  • Exam / certification fees: Set by NETA; exam fees, retake fees, and testing windows administered through candidate's NETA Accredited Company Official sources

Using Our Practice Resources

  • Work through all 126 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

NETA ETT Level 2: Suggested Study Strategy

1Build fluency with the four NETA DCO domains before drilling questions — every exam item maps back to Safety, Fundamentals/Theory, Component Testing, or Systems/Commissioning.
2Drill PI (10-min / 1-min), DAR (60-s / 30-s), and the kV+1 vs. 100 megohm minimum from IEEE 43 until you can solve them without looking up.
3Memorize ANSI device numbers 27, 50, 51, 59, 87, 86 and understand why IDMT curves exist — these show up across many Level 2 questions.
4Practice TTR acceptance (+/- 0.5 percent), contact resistance (micro-ohm range), and how CT ratio and polarity affect relay operation.
5Learn the live-dead-live sequence cold — plus secondary fuse/grounding practices for PTs and the open-CT hazard rule for CTs.
6Study ANSI/NETA MTS vs ATS differences (voltage levels, acceptance criteria) and typical test voltages by equipment class from the NETA tables.
7Review NFPA 70E PPE categories (1, 2, 3, 4 with 4, 8, 25, 40 cal/cm^2) and rubber glove classes (00 through 4) — common Level 2 quick-hit questions.
8Use the official NETA Practice Exam ($100, 40-50 retired questions, 60-day review) once you are consistently passing free practice sets to assess exam-day readiness.

Frequently Asked Questions

Who administers the NETA Level 2 exam?

Per NETA and Pearson VUE, NETA Levels 2, 3, and 4 certification exams are administered by Pearson VUE at authorized test centers. Registration is managed through the candidate's NETA Accredited Company (only Level 1 Trainee assessment is 'by employer').

What is the passing score for the NETA Level 2 exam?

Per NETA's 'Understanding Your Certification Exam Score' document, scaled scores range from 200 to 500, with 410 as the passing scaled score established through a formal standard-setting process. Raw scores are transformed to scaled scores so forms remain equivalent.

How many questions are on the NETA Level 2 exam and how long does it last?

The Level 2 exam is a 100-item, multiple-choice, closed-book, onsite proctored examination with two hours allowed, and a passing score is 410 or higher on a 200-500 scale (NETA technician-certification page). The Level 2 Detailed Content Outline (confirmed October 2015) weights Safety 15%, Electrical Testing Fundamentals and Theory 25%, Component Testing 55%, and Systems and Commissioning 5%.

What are the four NETA ETT exam domains?

Per the ANSI/NETA ETT Detailed Content Outlines, every NETA exam (Levels 2, 3, 4) is organized into four domains: (I) Safety; (II) Electrical Testing Fundamentals and Theory; (III) Component Testing; and (IV) Systems and Commissioning. For Level 2 the weights are Safety 15%, Fundamentals and Theory 25%, Component Testing 55%, and Systems and Commissioning 5% (NETA technician-certification page); other levels use different weights.

How much experience do I need to sit for the NETA Level 2 exam?

Per NETA's technician-certification page, Level 2 requires two years of related experience plus 40 hours of safety training and 160 hours of electrical training, and Level 1 qualifications. Technical education in an electrical field can count toward at most one year of that experience.

Do I have to work for a NETA Accredited Company to be certified?

Yes. NETA certification is only available to technicians employed by a NETA Accredited Company (or a NETA Approved Military Organization). If you are not currently employed by one, you would typically begin by joining a NETA Accredited Company first, then working toward Level 2 eligibility.

What references should I study for NETA Level 2?

Per NETA's Exam Preparation page, core references include ANSI/NETA ATS, ANSI/NETA MTS, ANSI/NETA ETT, NFPA 70E, NFPA 70 (NEC), IEEE 43 (rotating machinery IR), and applicable IEEE, NEMA, and manufacturer documentation. NETA also publishes a Formulae Sheet that will be available on-screen during the exam.

How do I recertify NETA Level 2?

Per NETA's FAQ (netaworld.org/about/contact-us-faqs), Level 2 Technicians must earn 24 CTD (Continuing Technical Development) credits every three years, while Levels 3 and 4 require 48. Certification also depends on employment at a NETA Accredited Company; up to five years of separation with documented CTDs can preserve eligibility to reinstate per NETA policy.