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Electrical / EEE Engineering · 1,047 questions

Electrical Engineering Interview Questions for freshers and experienced engineers

Electrical engineers are hired by switchgear and automation multinationals, power utilities, EPCs and the EV industry, and by the largest government route of any branch - power PSUs via GATE and state DISCOM/TRANSCO assistant-engineer exams. Fresher interviews test machines, power systems and protection basics; experienced interviews test design to IS/IEC standards, ETAP studies, testing and commissioning.

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B.Tech enrolment 2024-25
1.26 lakh
GATE EE 2025 registrations
83,355
Placement rate
59%

Three sections, one ladder

Core covers the campus and GATE/PSU technical round. Design covers the tools, codes and standards experienced hires are tested on. Industry covers plant, site and production practice.

Electrical Core

Circuits, machines, power systems, control

Circuit theory, EM fields, electrical machines, power systems, power electronics, control systems, measurements, analog & digital, signals, microprocessors, materials & safety and utilisation — the campus technical round and GATE/PSU/DISCOM interview spine.

Electrical Design

Protection, substation, cables, PLC/SCADA, standards

Protection & switchgear (IEC 61850), substation design, cable & busbar sizing (IS 1255/IEC 61439), transformer & motor specs, IEC/IS/CEA standards, power quality (IEEE 519), ETAP/DIgSILENT/MATLAB, drives, PLC/SCADA, LV panels, solar/BESS and earthing/lightning design — the design-engineer and experienced-hire layer.

Plant & Utility Ops

Testing, maintenance, energy, grid, EV, safety

Testing & commissioning, maintenance (DGA, thermography), plant operations, BEE energy audit, grid & load despatch (IEGC/ABT), solar O&M, EV charging, CEA safety regulations, traction, panel manufacturing, building electrical and project/vendor management — what plant, utility and maintenance interviews ask.

Who hires electrical / eee engineers

  • ABB, Siemens, Siemens Energy, Schneider Electric, Hitachi Energy, GE Vernova
  • L&T Electrical & Automation, Havells, Polycab, CG Power, KEC
  • Tata Power, Adani Energy, Torrent; EV: Tata, Mahindra, Ather, Ola, Bosch

Government route

  • GATE EE -> NTPC, PGCIL, BHEL, NHPC, SJVN, NLC, IOCL, ONGC, SAIL
  • UPSC ESE (EE 73 posts in 2026)
  • State DISCOM / TRANSCO AE exams (TSSPDCL, APTRANSCO, UPPCL, KPTCL, TANGEDCO)
  • SSC JE, RRB JE, state PSC AE
GATE EE pattern setESE EE pattern setSSC JE EE pattern setAll government jobs →

How the interview runs

  1. 1Online test: aptitude + verbal + domain MCQs (Siemens Energy: 91 questions in 80 minutes)
  2. 2Technical panel: transformers, machines, protection, power electronics; project first
  3. 3HR: site or plant postings, shifts
  4. 4Eligibility typically 60-70% with no backlogs

What experienced engineers get asked

  • Single-line diagrams, cable and busbar sizing (IS 1255, IEC 61439), relay coordination and arc-flash in ETAP
  • IS 3043 and IEEE 80 earthing, IEC 62305 lightning, IEC 61850 substation automation, IEEE 519 power quality
  • Testing and commissioning: IR/PI, tan delta, DGA, relay injection; BEE energy audits, ISO 50001
  • PLC/SCADA (IEC 61131-3), drives and VFDs, solar/BESS design to IEC 61215/61730

Your level, your role

Pick where you are and what you are targeting; placd builds the prep journey and the mock-interview rounds from it.

Levels

  • Fresher · Core / PSU
    PGCIL / NTPC / BHEL / DISCOMs — GATE-style core + technical interview
  • Fresher · Private / Campus
    ABB / Siemens / Schneider / L&T — aptitude + core + HR
  • Engineer (2–5 yrs)
    2–5 yrs — protection, standards, PLC/SCADA and T&C decide
  • Senior (5–10 yrs)
    5–10 yrs — design ownership, grid ops, energy management
  • Lead / Manager
    Lead / Manager — plant, projects, compliance; fundamentals still screened

Roles

  • Power Systems / Utility
    Grid, transmission, DISCOM, load despatch
  • Design (Switchgear / Substation)
    Protection, SLD, cable sizing, ETAP
  • Automation (PLC / SCADA)
    PLC, drives, instrumentation, DCS
  • Maintenance / T&C
    Testing, commissioning, CBM, plant ops
  • Core PSU / GATE
    PGCIL, NTPC, BHEL, NHPC, DISCOMs

Interview questions by topic

Browse any topic free. Answers and explanations are one free account away; the free readiness check gives you a scored taste of the mock interview.

Frequently asked

What is asked in an electrical engineering fresher interview?

Transformer tests and vector groups, why a Buchholz relay exists, induction motor slip and starting, per-unit and fault calculations, power factor correction, circuit breaker types, earthing, PWM inverters and basic PLC ladder logic.

How do Siemens, ABB and Schneider select electrical freshers?

An aptitude plus domain online test, then a technical interview on power systems, protection, machines, automation and digital logic, then HR. Many panels ask you to draw a substation single-line diagram.

What does a DISCOM or PSU electrical interview look like?

After the written exam or GATE score, a fundamentals-heavy personal interview: transmission line parameters, protection schemes, distribution losses, safety regulations and your project, plus questions on the utility itself.

What do experienced electrical design engineers get asked?

Cable sizing and derating, relay coordination, earthing design per IS 3043, IEC 61439 panel forms, harmonics and IEEE 519 limits, ETAP or DIgSILENT study workflows, and FAT/SAT procedures.

Guide

Electrical Engineering Interview Questions 2026: Core Companies, DISCOMs and PSUs

How Siemens, ABB, Schneider, PGCIL and NTPC interview electrical engineers, 28 questions with answers on machines, power systems, protection and PLC/SCADA, and a 4-week plan.

Read the guide

Other departments

MechanicalCivilElectronics & Comm.ChemicalSoftware & IT