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100+ Free EIM NC II Practice Questions
TESDA Electrical Installation and Maintenance NC II Competency Assessment practice questions are available now; exam metadata is being verified.
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2026 Statistics
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 Practice Questions
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