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100+ Free EIM NC II Practice Questions

Prepare for the TESDA Electrical Installation and Maintenance NC II Competency Assessment exam with instant access — no signup required.

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Key Facts: EIM NC II Exam

₱1,849

Assessment Fee

TESDA Circular 072-2021

≤600 V

Typical Scope

EIM NC II TR

196 hrs

Nominal Training

TR Dec 2015

Competency

Passing Standard

TESDA

TESDA Electrical Installation and Maintenance NC II certifies residential electrical installers for systems not exceeding 600 volts. Assessment includes written test plus practical demonstration. Promulgated fee is ₱1,415 (Jan 2021).

Sample EIM NC II Practice Questions

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

1According to the EIM NC II qualification scope, residential electrical work covered by the training regulations is limited to systems not exceeding what voltage?
A.600 volts
B.230 volts
C.1,000 volts
D.120 volts
Explanation: The TESDA Training Regulations for Electrical Installation and Maintenance NC II define the qualification as installing and maintaining wiring, lighting, and related equipment in residential buildings where voltage does not exceed 600 volts.
2During roughing-in, what is the primary purpose of installing electrical metallic tubing (EMT) or PVC conduit before pulling conductors?
A.To provide mechanical protection and a continuous raceway path for conductors
B.To increase circuit voltage for long branch runs
C.To eliminate the need for junction boxes at device locations
D.To serve as the equipment grounding conductor by itself
Explanation: Conduit systems protect conductors from physical damage and provide an organized raceway for pulling and future maintenance, which is a core roughing-in outcome in unit ELC741301.
3A trainee is laying out a single-phase branch circuit rough-in from the panel to several outlet locations. Which document should be consulted first to determine circuit routing and box positions?
A.The approved electrical plan or wiring diagram for the job
B.The tool inventory list only
C.The paint schedule for interior finishes
D.The plumbing isometric drawing exclusively
Explanation: Interpreting drawings to determine job requirements is the first performance element in roughing-in and wiring-device installation units of the EIM NC II TR.
4When pulling THHN conductors through PVC conduit, what practice best reduces damage to conductor insulation during the pull?
A.Use an approved wire lubricant and properly sized pull string or fish tape with gradual bends
B.Pull as fast as possible to minimize friction heat
C.Strip insulation from the leading end to reduce diameter
D.Use only one conductor per pull regardless of conduit fill
Explanation: Proper lubrication, suitable pulling equipment, and bend radius control protect insulation integrity during cable pulling.
5What is the function of an auxiliary terminal cabinet in a residential rough-in layout?
A.To provide a termination point for incoming/outgoing cables and organized splices or terminations
B.To replace the main service disconnect
C.To convert single-phase supply to three-phase power
D.To store spare circuit breakers only
Explanation: Auxiliary terminal cabinets are installed during roughing-in to terminate and organize cables per ELC741301 learning outcomes.
6When installing a panelboard during rough-in, why must the enclosure be securely fastened and kept plumb?
A.To ensure safe mounting of overcurrent devices and maintain working clearances
B.To improve power factor of branch circuits
C.To allow the panel to float during concrete pour
D.To eliminate the need for grounding
Explanation: Secure, plumb mounting supports protective devices and maintains accessibility and clearances.
7A rough-in crew is selecting PVC conduit for a damp residential garage run. Which consideration is most important?
A.Use conduit type and fittings listed for the environment and install supports per manufacturer and code practice
B.Use any lightweight plastic pipe from the hardware store
C.Omit expansion fittings because PVC does not expand
D.Bury unlisted drain pipe without tracer wire
Explanation: Material selection must match the installation environment and applicable standards.
8What is the purpose of installing cable clamps where non-metallic-sheathed cables enter a metal box?
A.To secure the cable and protect the sheath from abrasion at the box edge
B.To increase the ampacity of the conductors
C.To provide GFCI protection for the branch
D.To identify the circuit number
Explanation: Cable clamps secure the cable and prevent sheath damage at box entries.
9During layout, a trainee marks outlet box heights on a wall. Why is consistent box height important in residential work?
A.It ensures devices align with finish materials and meet typical installation standards
B.It changes the voltage delivered to outlets
C.It removes the need for cover plates
D.It allows boxes to be installed without nails or screws
Explanation: Consistent layout supports quality installation and finish coordination.
10Which tool is most appropriate for cutting EMT conduit to length on a job site?
A.A hacksaw or dedicated pipe cutter suitable for thin-wall conduit
B.A wood chisel only
C.A soldering torch
D.A wire stripper
Explanation: EMT is cut with hacksaws or pipe cutters for square ends and proper joining.

About the EIM NC II Exam

National competency for residential electrical wiring and maintenance in the Philippines. Practice questions cover wiring devices, protection, lighting/grounding, and electrical safety knowledge.

Assessment

Performance-based assessment

Time Limit

4 to 8 hours

Passing Score

Competency-based

Exam Fee

₱1,849.00 (TESDA)

EIM NC II Exam Content Outline

30%

Wiring Devices & Rough-In

Install wiring devices for floor/wall outlets and related rough-in works

25%

Electrical Protection Systems

Install electrical protection systems for lighting and grounding

25%

Lighting, Auxiliary & Grounding

Install lighting systems, auxiliary outlets, and grounding systems

20%

PEC Safety & Tools

Philippine Electrical Code basics, OHS, tools, and plan reading for ≤600V residential work

How to Pass the EIM NC II Exam

What You Need to Know

  • Passing score: Competency-based
  • Assessment: Performance-based assessment
  • Time limit: 4 to 8 hours
  • Exam fee: ₱1,849.00

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

EIM NC II Study Tips from Top Performers

1Study Philippine Electrical Code concepts for branch circuits, grounding, and overcurrent protection—without inventing article numbers you have not verified.
2Practice reading single-line and wiring diagrams used in residential installations.
3Know GFCI/AFCI purpose and typical placement concepts.
4Review lockout/tagout and PPE for live-work avoidance.
5Be ready to explain why conductor sizing and circuit loading matter for safety.

Frequently Asked Questions

What voltages does EIM NC II focus on?

The TR describes installing and maintaining electrical wiring, lighting, and related equipment/systems in residential houses/buildings where voltage does not exceed 600 volts.

What assessment methods are used?

Methods include written test, direct observation, questions, and demonstration (TR Section assessment approaches).

What is the assessment fee?

Promulgated TESDA assessment fee ₱1,849.00 for Electrical Installation and Maintenance NC II Full (TESDA Circular No. 072-2021, 6 Sep 2021).

What is the nominal training duration?

The amended TR lists about 18 hours basic, 24 hours common, and 154 hours core competencies (196 hours total).

Is the credential MCQ-only?

No. The National Certificate requires full competency assessment including practical demonstration; practice banks only support written knowledge.