NEC License Exam Questions: 8 Free MCQs with Answers
Try 8 NEC license exam questions with answers for Civil, Computer, Electrical, Mechanical, and Software engineering, then continue with full mock tests in the app.
Match practice questions to your engineering branch
NEC license preparation works best when candidates stop treating every engineering topic as equally important. A Civil candidate, a Computer candidate, and an Electrical candidate need different first-priority revision blocks, even though the exam style may feel similar.
Use branch-wise MCQ practice first, then move into mixed mock tests after your weak subjects are visible. This builds accuracy before speed, which is usually safer than rushing into full-length tests too early.
- Civil: structures, surveying, materials, hydraulics, transportation, soil, and construction basics.
- Computer and Software: programming, data structures, database, networking, operating systems, software engineering, and security basics.
- Electrical: circuits, machines, power systems, control, measurements, and safety fundamentals.
- Mechanical: thermodynamics, fluid mechanics, materials, manufacturing, machines, and design basics.
- Electronics and Communication: circuits, signals, communication systems, digital logic, microprocessors, and instrumentation.
- Architecture: design principles, building systems, planning, materials, services, and professional practice basics.
Turn old question patterns into a repeatable system
Old and repeated question patterns are useful, but they should not become a guessing habit. The better method is to tag every missed question by topic, then return to the topic after a short gap.
If a question feels familiar but the answer still feels uncertain, mark it as a concept gap. If the concept is clear but the answer takes too long, mark it as a speed gap. Those two problems need different revision plans.
- Keep one list for formulas, definitions, and facts you forget.
- Keep another list for topics where two options look similar.
- Retake weak-topic sets after two or three days, not immediately after memorizing the answer.
- Use full mock tests only after topic-wise accuracy starts improving.
Use Yashi Academy for daily engineering MCQ discipline
Engineering candidates need a consistent place to answer questions, review mistakes, and see progress by topic. A short daily practice routine makes that work easier to sustain.
Yashi Academy helps candidates move from passive notes to active recall. The goal is not to finish every possible question once; the goal is to reduce repeat mistakes before the final exam window.
- Start with your branch preparation page.
- Practice one weak topic per day.
- Review every wrong answer before starting the next set.
- Add mixed mock tests near the end of the week.
Common NEC practice mistakes
Many candidates study seriously but still lose marks because their practice is not structured. The largest gains usually come from fixing how you practice, not only adding more hours.
- Practicing random mixed questions before branch fundamentals are stable.
- Only counting mock-test scores without reviewing the wrong answers.
- Ignoring easy formulas and definitions because they feel too basic.
- Studying late at night without any timed question practice.
Free practice preview
Try 8 questions with answers
Use this short set to check the question style, then continue in Yashi Academy for the full faculty bank, timed mock tests, progress tracking, personalized practice, and mistake review.
“Past-question record” means the question is tagged in Yashi Academy's internal past-question data; it is not presented as an official council paper. “Practice question” means exam-style preparation. Always compare preparation with the latest official syllabus and notices.
1. Which technique is not typically used to increase the stability of a retaining wall?
- Using geotextile reinforcement
- Installing tie-backs or anchors
- Increasing the wall thickness
- Painting the wall surface
Show answer and explanation
Correct answer: Painting the wall surface
Reinforcement, anchors, and suitable wall dimensions can improve structural stability. Paint may protect or finish the surface, but it does not stabilize the wall.
2. Which type of testing evaluates how effectively and satisfactorily users can interact with a software system?
- Usability testing
- Software functionality testing
- Quality compliance testing
- Object-oriented testing
Show answer and explanation
Correct answer: Usability testing
Usability testing measures ease of use, efficiency, and user satisfaction while people perform realistic tasks with a system.
3. Which organization establishes automotive lubricant viscosity grades such as 10W-30?
- ASME
- SAE
- ASTM
- ISO
Show answer and explanation
Correct answer: SAE
The Society of Automotive Engineers defines the SAE J300 viscosity grading system used for engine oils.
4. Which pipe material is generally most resistant to earthquake-related ground deformation?
- Cast iron
- Ductile iron
- PVC
- HDPE
Show answer and explanation
Correct answer: HDPE
HDPE is flexible and ductile, and its fused joints can tolerate substantial ground movement better than brittle pipe systems.
Four questions are only a warm-up
Open Yashi Academy for the complete branch or category bank, timed exams, weak-topic review, and personalized question repetition.
Download Yashi Academy5. What is the main purpose of a hardware abstraction layer in an embedded system?
- To provide a higher-level interface to hardware components
- To manage user-interface design
- To increase power consumption
- To monitor network performance
Show answer and explanation
Correct answer: To provide a higher-level interface to hardware components
A hardware abstraction layer isolates software from device-specific details, making application code easier to reuse across hardware platforms.
6. What is the holding current of a thyristor?
- The maximum reverse voltage it can block
- The maximum anode current it can conduct
- The minimum anode current needed to keep it on after the gate signal is removed
- The minimum anode current needed to turn it on
Show answer and explanation
Correct answer: The minimum anode current needed to keep it on after the gate signal is removed
Holding current is the minimum anode current required to maintain conduction after the thyristor has switched on and the gate signal is gone.
7. Which flow-measuring device works on the principle of differential pressure?
- Turbine flow meter
- Orifice plate
- Magnetic flow meter
- Ultrasonic flow meter
Show answer and explanation
Correct answer: Orifice plate
An orifice plate creates a pressure drop across a restriction. That differential pressure is used to calculate flow rate.
8. Which of the following is a symmetric encryption algorithm?
- RSA
- AES
- DSA
- ECC
Show answer and explanation
Correct answer: AES
AES is symmetric because the same secret key is used for encryption and decryption. RSA, DSA, and ECC use asymmetric cryptography.
Continue with the full practice experience
Choose your faculty in the app, take timed mock tests, review every mistake, and track improvement instead of stopping after a small web sample.
Frequently asked questions
How should I practice NEC license exam questions branch-wise?
Start with the branch you are registered for, practice topic-wise MCQs, review mistakes, and only then move to mixed mock tests. This makes weak areas easier to identify.
Are old NEC questions enough for preparation?
Old question patterns are helpful, but they are not enough by themselves. Use them with concept revision, topic-wise practice, and timed mock tests.
Where should I start NEC license exam preparation in Yashi Academy?
Start from the Engineering License Preparation page, choose your branch, and build a daily MCQ routine around weak topics and mock-test review.