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I appeared for an interview in Dec 2023.
Pneumatics and hydraulics systems are used in engineering for power transmission and control.
Pneumatics systems use compressed air to transmit power, commonly used in industries for automation and control.
Hydraulics systems use pressurized liquid (usually oil) to transmit power, commonly used in heavy machinery like excavators and hydraulic presses.
Pneumatics systems are generally faster but less powerful than hydrauli...
Major breakdowns include server crashes, while minor breakdowns may involve software glitches.
Major breakdown: Server crash - Solution: Restart server and investigate root cause
Minor breakdown: Software glitch - Solution: Update software or restart application
Major breakdown: Network failure - Solution: Check network connections and troubleshoot
Minor breakdown: Printer jam - Solution: Clear jammed paper and reset print
I applied via Walk-in and was interviewed before Dec 2023. There were 2 interview rounds.
As an L2 Engineer, my roles and responsibilities include troubleshooting technical issues, providing support to end users, and collaborating with L1 and L3 teams.
Troubleshooting technical issues reported by end users
Providing support and guidance to L1 support team
Collaborating with L3 engineers to resolve complex technical problems
Documenting solutions and best practices for future reference
Participating in on-call ro
During a line down situation, managing line output involves troubleshooting, identifying the root cause, implementing solutions, and communicating with stakeholders.
Quickly troubleshoot to identify the root cause of the line down
Implement temporary solutions to restore line output if possible
Communicate with relevant teams and stakeholders to keep them informed
Work on permanent solutions to prevent future line down sit...
I am a dedicated L2 Engineer with a strong background in troubleshooting and resolving technical issues.
Experienced in diagnosing and fixing network problems
Proficient in configuring and maintaining hardware and software systems
Skilled in providing technical support to end users
Certified in relevant technologies such as Cisco or Microsoft
My salary expectations are based on my experience, skills, and the market rate for the position.
Research the average salary range for L2 Engineers in your area
Consider your level of experience and skills when determining your salary expectations
Be prepared to negotiate based on the company's offer and benefits package
I applied via Approached by Company and was interviewed before Apr 2023. There was 1 interview round.
Speed and feed formula is used in machining to determine the optimal cutting parameters for a specific material and tool.
Speed and feed formula calculates the spindle speed (RPM) and feed rate (IPM) for a given material and tool combination.
The formula takes into account factors such as material type, tool diameter, and desired surface finish.
For example, the formula for calculating spindle speed is: RPM = (CS x 4) / D...
Difference and least count of measuring instruments
Difference: Range of values that can be measured by the instrument
Least count: Smallest change in the quantity being measured that can be detected by the instrument
Examples: Vernier caliper - Difference: 0-150mm, Least count: 0.02mm; Micrometer screw gauge - Difference: 0-25mm, Least count: 0.01mm
I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
It was an online ph test
Tata Electronics interview questions for designations
Leakage current in CMOS refers to the small amount of current that flows through the transistors when they are in the off state.
Leakage current occurs due to the imperfect insulation between the source and drain terminals of the transistors.
It is an undesirable phenomenon as it leads to power dissipation and can affect the performance and reliability of CMOS circuits.
Leakage current can be categorized into subthreshold...
The different terminals of a MOSFET are the gate, source, and drain.
The gate terminal controls the flow of current between the source and drain.
The source terminal is where the current enters the MOSFET.
The drain terminal is where the current exits the MOSFET.
The gate-source voltage determines the conductivity of the channel between the source and drain.
Examples of MOSFETs include enhancement-mode and depletion-mode MO
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.
Ohm's law is expressed as V = IR, where V is the voltage, I is the current, and R is the resistance.
It helps in understanding the relationship between voltage, current, and resistance in an electrical circuit.
For example, if the voltage across a resistor is...
The direction of current flow is opposite to the direction of electron flow due to historical convention.
The concept of current flow was developed before the discovery of electrons.
Benjamin Franklin proposed the convention of positive charge carriers, which led to the opposite direction of current flow.
In reality, electrons are negatively charged and flow from the negative terminal to the positive terminal of a power s...
An inductor is a passive electronic component that stores energy in a magnetic field when current flows through it.
Inductors are typically made of a coil of wire wound around a core material.
They are used in electronic circuits to control the flow of current and store energy.
Inductors can be found in various applications such as power supplies, filters, and oscillators.
They are measured in units called henries (H).
Indu...
I applied via Referral and was interviewed before Jan 2021. There were 5 interview rounds.
I applied via Referral and was interviewed in Nov 2023. There was 1 interview round.
A virtual function is a function in a base class that is declared using the keyword 'virtual' and can be overridden by a function in a derived class.
Virtual functions allow a derived class to provide a specific implementation of a function that is already defined in a base class.
They enable polymorphism, where a pointer to a base class can be used to call a function in a derived class.
Virtual functions are used in obje...
Android boot up sequence involves several stages including power on, bootloader, kernel initialization, and system initialization.
Power on the device
Bootloader loads the kernel
Kernel initializes the system
System initialization completes the boot up process
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
Allows for code reusability by creating a new class based on an existing class
Derived class (subclass) inherits attributes and methods from a base class (superclass)
Can have multiple levels of inheritance (multi-level inheritance)
Example: Animal class can be a base class with properties like name a...
Polymorphism is the ability of a single function or method to operate on different types of data.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
It enables a single interface to be used for different data types.
Examples include method overloading and method overriding in object-oriented programming.
I applied via Approached by Company and was interviewed in Mar 2024. There was 1 interview round.
Leetcode questions followed by technical subjects
VLSI design cycle is the process of creating integrated circuits by going through various stages from design to fabrication.
VLSI design cycle involves stages like specification, design, verification, synthesis, and fabrication.
It starts with defining the requirements and specifications of the integrated circuit.
Design phase includes logic design, circuit design, and physical design.
Verification ensures that the design ...
I applied via Approached by Company and was interviewed in Nov 2023. There were 3 interview rounds.
Function to dynamically allocate memory and write data to a memory location, returning the address details.
Use malloc() or calloc() to dynamically allocate memory
Use memcpy() or strcpy() to write data to the allocated memory
Return the address details where data is present
Memory management involves allocating and deallocating memory efficiently, while mapping involves associating memory addresses with physical locations.
Memory management is crucial for optimizing performance and preventing memory leaks.
Mapping involves translating virtual memory addresses to physical memory locations.
Different scenarios may require different memory management strategies, such as stack allocation vs heap...
Program to find length of bits assigned in memory using recursion.
Define a recursive function to count the bits in memory
Base case: if input is 0, return 0
Recursive case: return 1 + function(input / 2)
Volatile keyword prevents compiler optimization by telling the compiler that the variable's value can change unexpectedly.
Volatile keyword is used to indicate that a variable may be changed unexpectedly, such as in the case of hardware registers.
When initializing GPIO pins, using volatile keyword ensures that the compiler does not optimize away the initialization code.
Without volatile keyword, the compiler may optimize...
Unions in C/C++ can be used for bit assignments by allowing multiple variables to share the same memory location.
Unions allow different data types to be stored in the same memory location, which can be useful for bit manipulation.
By defining a union with multiple variables of different data types, you can access the same memory location using different variable names.
For example, you can use a union to access individua...
static const is used to declare constants that are known at compile time and cannot be modified
static const int MAX_SIZE = 100; // declaring a constant integer
static const double PI = 3.14159; // declaring a constant double
static const char* MESSAGE = "Hello, World!"; // declaring a constant string
Program to find the sum of all the digits in a number.
Iterate through each digit in the number and add them together.
Convert the number to a string to easily access each digit.
Use modulo operator to extract each digit from the number.
Handle negative numbers by taking the absolute value before processing.
Check if a linked list is circular, if not reverse it.
Create two pointers, one moving at double the speed of the other to detect a cycle
If a cycle is detected, the list is circular. If not, reverse the list by changing the pointers' directions
Architecture to process real-time data involves designing systems that can efficiently collect, process, and analyze data in real-time.
Utilize distributed systems to handle high volumes of data in real-time
Implement stream processing frameworks like Apache Kafka or Apache Flink
Use microservices architecture for scalability and flexibility
Employ in-memory databases for fast data retrieval
Ensure fault tolerance and data
Various data filtering techniques include sorting, grouping, aggregating, and applying filters based on specific criteria.
Sorting: arranging data in a specific order, such as ascending or descending
Grouping: categorizing data into distinct groups based on common attributes
Aggregating: combining multiple data points into a single value, such as summing or averaging
Filtering: selecting only the data that meets certain cr
Initialize and control GPIO using HAL functions in embedded systems.
Use HAL_GPIO_Init() function to initialize GPIO pins
Use HAL_GPIO_WritePin() function to set or clear GPIO status
Example: HAL_GPIO_Init(&GPIO_InitStruct)
Example: HAL_GPIO_WritePin(GPIOx, GPIO_PIN_x, GPIO_PIN_SET)
Traverse a linked list based on input 0 or 1 to return decimal equivalent.
Create a function that takes input 0 or 1 and traverses the linked list accordingly.
For each node in the linked list, multiply the current decimal value by 2 and add the data of the node if input is 1.
Return the final decimal value after traversing the linked list.
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