Design Engineer - Electrical Interview Questions and Answers in 2025 (100+ Q&A)

Ques:- Wt do u mean by DTMF/

Asked In :- AroDek, DSVV, Tecno Mobile, Pixieset, Dolce & Gabbana, Fraser Health, Mettle Interactive, Genxlead, city of windsor, ssd,

Right Answer:
DTMF stands for Dual-Tone Multi-Frequency. It is a signaling system used in telecommunication that generates a combination of two specific frequencies when a button on a telephone keypad is pressed, allowing the transmission of digits and control signals over phone lines.

Design Design Engineer - Electrical

Ques:- Explain in detail regarding fuse.

Asked In :- Learningmate Solutions, Direction Software Solutions, Pixieset, Martha Sturdy, Mantel Group, Umang, 2020 Spaces, atkins, avery dennison, northern ireland housing executive,

Right Answer:
A fuse is a safety device used in electrical circuits to protect against overcurrent. It consists of a metal wire or strip that melts and breaks the circuit when the current exceeds a certain level, preventing damage to the circuit and connected devices. Fuses are rated for specific current levels and must be replaced after they blow. They are typically used in household appliances, vehicles, and electrical panels to ensure safe operation.

Design Design Engineer - Electrical

Ques:- WHAT IS THE GENERATOR ?

Asked In :- AroDek, Jotun Paints, Bentley Motors, Triumph Motorcycles, Dolce & Gabbana, Perkins & Will, Kumi Labs, University of the Saarland, loughborough university, wren kitchens,

Right Answer:
A generator is a device that converts mechanical energy into electrical energy using electromagnetic induction.

Cable layingErection Design Engineer - Electrical

Ques:- WHY THE PART OF CABLE LAYING ?

Asked In :- croma,

Right Answer:
The part of cable laying is crucial for ensuring proper installation, protection, and functionality of electrical systems, as it involves the correct placement, securing, and routing of cables to minimize risks of damage, interference, and ensure safety and efficiency in power distribution.

Design Engineer - Electrical General Management

Ques:- At home how many kilo volts electricity will be given?

Asked In :- vision plus,

Right Answer:
At home, electricity is typically supplied at 230 volts (0.23 kilovolts) in most countries.

Design Engineer - Electrical Personal Questions round

Ques:- Why do you join this course?

Asked In :-

Right Answer:
I joined this course to enhance my knowledge and skills in electrical design engineering, which aligns with my career goals and passion for innovation in technology.

Design Engineer - Electrical Personal Questions round

Ques:- Will you able to work on sites?

Asked In :-

Right Answer:
Yes, I am able to work on sites.

Design Engineer - Electrical Electrical

Ques:- Why transfromer rating gives in MVA Or KVA? Why not in MW or KW?

Asked In :- petronas,

Right Answer:
Transformers are rated in MVA (Mega Volt-Amperes) or KVA (Kilo Volt-Amperes) because these ratings account for both the voltage and current without considering the power factor. This allows for a universal rating that applies to both resistive and reactive loads, whereas MW (Mega Watts) or KW (Kilo Watts) would only apply to resistive loads.

Design Engineer - Electrical Electrical

Ques:- How electrical power is generated by an A.C Generator ?

Asked In :-

Right Answer:
An A.C. generator generates electrical power by converting mechanical energy into electrical energy through electromagnetic induction. As a coil of wire rotates within a magnetic field, it cuts through magnetic lines of force, inducing an alternating current (A.C.) in the coil according to Faraday's law of electromagnetic induction.

Design Engineer - Electrical Electrical

Ques:- What should be your target in the first 60 to 90 days at work?

Asked In :-

Right Answer:
In the first 60 to 90 days at work, my target should be to understand the company’s processes, build relationships with team members, familiarize myself with ongoing projects, and identify areas where I can contribute effectively. Additionally, I aim to set clear goals for my role and seek feedback to ensure alignment with team objectives.

AutoCAD Design Engineer - Electrical Excel

Ques:- How to design sub station?

Asked In :- PitchBook, India Nippon Electricals, Knowlvers Consulting, Corporate Finance Institute (CFI), rtd, partnerre, south wales police, preqin, patra corporation, man energy solutions,

Right Answer:
To design a substation, follow these steps:

1. **Site Selection**: Choose an appropriate location considering accessibility, environmental impact, and proximity to load centers.
2. **Load Analysis**: Determine the electrical load requirements and future growth potential.
3. **Voltage Level**: Decide on the voltage levels for incoming and outgoing lines based on system requirements.
4. **Equipment Selection**: Select transformers, circuit breakers, switchgear, and protection devices based on load and voltage.
5. **Layout Design**: Create a layout that includes the arrangement of equipment, safety clearances, and access routes.
6. **Protection and Control**: Design protection schemes and control systems for safe operation and monitoring.
7. **Grounding System**: Design an effective grounding system to ensure safety and equipment protection.
8. **Compliance and Standards**: Ensure the design meets local regulations, safety standards, and utility requirements.
9. **Documentation**: Prepare detailed drawings, specifications, and operational manuals for

Design Engineer - Electrical Design Engineering

Ques:- What is OSP-Fm?

Asked In :- Daimler India Commercial Vehicles, Christie Digital, GRSE, Azad Engineering, Subros Ltd, wsp in the uk, pst, btp, aequs, ipec,

Right Answer:
OSP-Fm stands for Outside Plant Fiber Management, which refers to the systems and practices used to manage and organize fiber optic cables and related components in outdoor environments.

Design Engineer - Electrical

Ques:- Can you tell me the name of any 132kV Cable Manufacturer?

Asked In :-

Right Answer:
Prysmian Group.

Design Engineer - Electrical

Ques:- Draw the one and half breaker scheme of 440 kV Switch yard?

Asked In :- Tmeic International Corporation, textron,

Right Answer:
A one and a half breaker scheme for a 440 kV switchyard typically consists of three circuit breakers, where each busbar is connected to two circuit breakers, and one circuit breaker is shared between two busbars. The configuration allows for the maintenance of one circuit breaker while keeping the system operational.

Here’s a simple representation:

```
Bus A
------
| |
| |
---- ----
| CB1 | | CB2 |
---- ----
| |
| |
------
Bus B
------
| |
| |
---- ----
| CB3 | | CB4 |
---- ----
| |
| |
------
Bus C
```

In this scheme:
- CB1 and CB3 are connected to Bus A.
- CB2 and CB4 are connected to Bus B.
- The shared breaker allows

The Design Engineer – Electrical category on takluu.com is tailored for professionals and aspirants aiming to excel in electrical design roles. Electrical design engineers are responsible for planning, developing, and validating electrical systems for various applications, including power distribution, control systems, and electronics.

This section covers essential topics such as electrical circuit design, schematic diagrams, CAD software (like AutoCAD Electrical), wiring layouts, load calculations, and compliance with standards like IEC and NEC. You’ll also find questions related to design optimization, troubleshooting, protective devices, and safety protocols.

Interview questions often explore practical scenarios, for example:

“How do you approach designing a power distribution system?”
“Explain the use of AutoCAD Electrical in schematic design.”
“What factors do you consider for electrical load calculations?”

Our content presents complex design concepts in a clear and concise manner, supported by real-world examples and best practices. Whether you are fresh in the field or an experienced engineer, this category helps you prepare confidently for technical interviews and project discussions.

At Takluu, we keep this category updated with the latest tools, software advancements, and industry trends, ensuring you stay current and competitive in the electrical design domain.

Questions in: Design Engineer - Electrical

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