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Tata Communications Senior Electrical Engineer Interview Questions, Process, and Tips
Tata Communications Senior Electrical Engineer Interview Experiences
1 interview found
Anonymous
Selected
I appeared for an interview in Feb 2025.
(2 Questions)
- Q1. What is voltage
- Ans.
Voltage is the electric potential difference between two points, driving current flow in a circuit.
Voltage is measured in volts (V).
It represents the energy per unit charge available to move electrons.
Example: A standard household outlet in the US provides 120V.
Higher voltage can lead to greater current flow, given a constant resistance (Ohm's Law).
Voltage can be AC (alternating current) or DC (direct current).
- Q2. Whatis the cable laying
- Ans.
Cable laying involves the installation of electrical cables for power distribution, communication, or data transmission.
Cable laying can be done underground, overhead, or underwater depending on the application.
Proper planning is essential to avoid damage to existing infrastructure.
Examples include laying power cables for substations or communication cables for internet services.
Techniques include trenching, directiona...
Technical questions only and communication
(2 Questions)
- Q1. What is the panels installation
- Ans.
Panel installation involves setting up electrical panels for power distribution and control in various applications.
Identify the location for panel installation, ensuring accessibility and compliance with local codes.
Mount the panel securely to a wall or structure, using appropriate fasteners.
Connect incoming power supply lines to the panel's main bus bars.
Install circuit breakers or fuses in designated slots for circu...
- Q2. What capacity of panel board
- Ans.
Panel board capacity refers to the maximum electrical load it can handle safely and efficiently.
Common capacities range from 100A to 4000A, depending on application.
Residential panel boards typically have capacities of 100A or 200A.
Commercial buildings may use panel boards rated from 400A to 1200A.
Industrial applications can require panel boards with capacities exceeding 4000A.
Example: A 200A panel board can support mu...
(2 Questions)
- Q1. Which type of cable is required
- Q2. Which type of cable is used
- Ans.
Various cable types are used in electrical engineering, including power, control, and communication cables, each serving specific purposes.
Power cables: Used for transmitting electrical power, e.g., XLPE cables for high voltage.
Control cables: Used for control circuits, e.g., multi-core cables for automation systems.
Communication cables: Used for data transmission, e.g., Ethernet cables for networking.
Instrumentation c...
(2 Questions)
- Q1. What is isolated transformer
- Q2. Capacity
(2 Questions)
- Q1. Which type of cable is used
- Ans.
Various cable types are used in electrical engineering, each suited for specific applications and environments.
1. Power Cables: Used for transmitting electrical power; examples include XLPE and PVC insulated cables.
2. Control Cables: Designed for control circuits; examples include multi-core cables for automation systems.
3. Communication Cables: Used for data transmission; examples include coaxial cables and fiber opti...
- Q2. How many types of cables
- Ans.
Cables are classified into various types based on their construction, application, and insulation materials.
1. Power Cables: Used for electrical power transmission (e.g., XLPE cables).
2. Control Cables: For control circuits (e.g., PVC insulated control cables).
3. Communication Cables: For data transmission (e.g., coaxial cables, fiber optic cables).
4. Instrumentation Cables: For connecting instruments (e.g., shielded t...
(2 Questions)
- Q1. Location and salary
- Q2. Flexible time
(2 Questions)
- Q1. Fixed salary per annum
- Q2. 750000
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I applied via Naukri.com and was interviewed before Jul 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Coming to AEM,Interviewer has covered all the topics.
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. What is name mangling?
- Ans.
Name mangling is a technique used by compilers to give unique names to functions and variables to avoid naming conflicts.
Name mangling is used in C++ to support function overloading.
It is also used in Python to avoid naming conflicts in modules.
Name mangling can make it difficult to access variables and functions from outside the class in which they are defined.
In C++, name mangling can be seen by using the 'nm' comman
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Aug 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Past experience and communication skills
Interview Preparation Tips
raja reddy duggi reddy
Interview Questionnaire
2 Questions
- Q1. Engineering Technical
- Q2. Mainly on Engineering Design
Interview Questionnaire
6 Questions
- Q1. Explain abstract factory design pattern ?
- Ans.
Abstract Factory is a creational design pattern that provides an interface for creating families of related objects.
Abstract Factory is used when we need to create families of related objects without specifying their concrete classes.
It provides an interface for creating objects of related classes without specifying their concrete classes.
It encapsulates a group of factories that have a common theme.
It promotes loose c...
- Q2. How do you do range based map iteration
- Ans.
Range based map iteration can be done using a for-each loop or iterators.
Use a for-each loop to iterate over the map elements.
Alternatively, use iterators to traverse the map.
The range-based for loop is preferred for its simplicity and readability.
Example: for(auto const& [key, value] : myMap) { //do something with key and value }
- Q3. What are detached and joined threads
- Ans.
Detached threads are independent threads that run separately from the main thread. Joined threads are threads that wait for the main thread to finish.
Detached threads are created using pthread_detach() function
Joined threads are created using pthread_join() function
Detached threads do not need to be explicitly terminated
Joined threads must be explicitly terminated using pthread_exit() or return statement
Detached thread...
- Q4. What are static code analysis tools
- Ans.
Static code analysis tools are software programs that analyze source code to find potential issues and improve code quality.
Static code analysis tools scan code without executing it
They can detect issues such as security vulnerabilities, coding errors, and performance problems
Examples of static code analysis tools include SonarQube, ESLint, and Checkstyle
- Q5. Command to list currently running threads in linux
- Ans.
Command to list currently running threads in linux
Use the 'ps' command with the 'H' option to display threads in a hierarchy
Use the 'top' command to display threads in real-time
Use the 'htop' command for an interactive display of threads
- Q6. Can we perform arithmetic operation on Unique pointer
- Ans.
No, arithmetic operations cannot be performed on unique pointers.
Unique pointers are used to manage the lifetime of dynamically allocated objects.
They cannot be copied or assigned, only moved.
Arithmetic operations are not defined for pointers, including unique pointers.
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. Design facebook
- Ans.
Designing Facebook is a complex task involving various components and technologies.
Identify the core features of Facebook such as user profiles, news feed, messaging, and groups.
Choose appropriate technologies for each component such as PHP for backend, React for frontend, and MySQL for database.
Ensure scalability and performance by implementing caching, load balancing, and database sharding.
Implement security measures...
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Skills evaluated in this interview
Interview Questionnaire
3 Questions
- Q1. About skilla
- Q2. Project
- Q3. Roles in
I applied via Naukri.com and was interviewed before Oct 2021. There were 3 interview rounds.
(2 Questions)
- Q1. What is AD dns dhcp?
- Ans.
AD DNS DHCP are Microsoft technologies used for network management and authentication.
Active Directory (AD) is a directory service used for authentication and authorization of users and computers in a network.
Domain Name System (DNS) is used for name resolution of network resources.
Dynamic Host Configuration Protocol (DHCP) is used for automatic IP address assignment to network devices.
AD, DNS, and DHCP are often used ...
- Q2. What is IaaS SaaS PaaS?
- Ans.
IaaS, SaaS, and PaaS are cloud computing models that provide different levels of infrastructure, software, and platform services.
IaaS (Infrastructure as a Service) provides virtualized computing resources over the internet, such as servers, storage, and networking.
SaaS (Software as a Service) delivers software applications over the internet, eliminating the need for local installation and maintenance.
PaaS (Platform as ...
General questions for 1 hors online exams
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Skills evaluated in this interview
I applied via Job Fair and was interviewed before May 2021. There were 2 interview rounds.
(1 Question)
- Q1. What is your job role
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Tata Communications Senior Electrical Engineer Interview Process
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