Tata Communications Interview Questions, Process, and Tips

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).
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Q2. Whatis the cable laying
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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...read more
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Technical questions only and communication

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...read more
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Q2. What capacity of panel board
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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...read more
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Q1. Which type of cable is required
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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...read more
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Q1. What is isolated transformer
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Q2. Capacity
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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...read more
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Q2. How many types of cables
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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...read more
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Q1. Location and salary
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Q2. Flexible time
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Q1. Fixed salary per annum
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Q2. 750000
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Q1. Asked about Dotnet Core Questions about Program.cs file use case, DI, Services, Architectural patterns, and jumped to Linq complex queries and SQL queries. Before that Deep analysis of background work
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Q2. Use of Program.cs
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Program.cs is the entry point for a .NET Core application.
• Contains the Main method where the application starts execution

• Responsible for configuring and starting the application

• Can be used to set up services, configure logging, and handle command line arguments
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Q3. Middleware and Services
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Q4. Dependency Injection
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Q5. Authentication & Authorization
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Q1. Tell me about yourself
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Q2. How many percentage do you had in graduation?
Ans. 
I graduated with a percentage of 85%, which reflects my dedication and hard work throughout my studies.
• Consistently achieved high grades in core subjects, such as Marketing and Communication.

• Participated in group projects that enhanced my teamwork skills, contributing to my overall academic success.

• Engaged in extracurricular activities, which helped me develop leadership qualities alongside my studies.
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