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A bridge rectifier converts AC to DC using four diodes arranged in a bridge configuration.
Consists of four diodes arranged in a bridge configuration.
Allows both halves of the AC waveform to be used, improving efficiency.
Output is a pulsating DC voltage, which can be smoothed using capacitors.
Commonly used in power supplies for electronic devices.
Example: A bridge rectifier can be found in chargers for mobile phone...
Effective vendor follow-up ensures timely communication, builds relationships, and enhances procurement efficiency.
Establish Clear Communication: Set expectations for response times and preferred communication channels. For example, agree to weekly email updates.
Use a Tracking System: Implement a system to track vendor interactions and follow-ups. This could be a simple spreadsheet or a dedicated software tool.
Be ...
Adding a new vendor involves evaluating, onboarding, and integrating them into the procurement process effectively.
Vendor Evaluation: Assess potential vendors based on criteria like quality, price, reliability, and service. For example, compare multiple suppliers for raw materials.
Documentation: Gather necessary documentation from the vendor, such as business licenses, tax information, and insurance certificates t...
Earth pits are essential for grounding systems, ensuring safety by dissipating electrical faults into the ground.
1. Plate Earth Pit: Uses a metal plate buried in the ground; effective for low-resistance grounding.
2. Rod Earth Pit: Involves a vertical rod driven into the ground; commonly used in residential applications.
3. Strip Earth Pit: Utilizes a horizontal strip of metal buried in the earth; suitable for large...
A purchase requisition is a formal request to procure goods or services within an organization.
Initiated by employees to request items needed for their work.
Includes details like item description, quantity, and budget.
Example: A department requests new laptops for staff.
Serves as a control mechanism to manage spending.
Requires approval from management before proceeding with purchase.
Negotiation is a dialogue between parties aimed at reaching a mutually beneficial agreement.
Involves two or more parties discussing terms to reach a consensus.
Example: Salary negotiations between an employee and employer.
Can occur in various contexts, such as business deals, contracts, or personal agreements.
Effective negotiation requires good communication, understanding of interests, and compromise.
Example: Nego...
Various components like resistors, capacitors, transistors, and diodes are used in circuits to control the flow of electricity.
Resistors: Limit current flow, control voltage levels
Capacitors: Store and release electrical energy
Transistors: Amplify or switch electronic signals
Diodes: Allow current to flow in one direction only
High voltage PCBs can be checked using insulation resistance testing, visual inspection, and continuity testing.
Perform insulation resistance testing using a megohmmeter to check for any leakage current or breakdown voltage issues.
Conduct visual inspection for any physical damage, burnt components, or signs of arcing.
Use continuity testing to ensure proper connections and no open circuits on the PCB.
Check for any ...
The different types of layers in PCBs are signal layer, power plane layer, ground plane layer, and silkscreen layer.
Signal layer: Carries electrical signals between components
Power plane layer: Provides power distribution throughout the board
Ground plane layer: Provides a reference point for electrical signals and helps with noise reduction
Silkscreen layer: Contains component outlines, reference designators, and o...
5s system is a methodology for organizing a workplace to improve efficiency and effectiveness by eliminating waste and maintaining cleanliness.
Sort - separate needed tools, materials, and instructions from unneeded items
Set in order - neatly arrange items for easy access and use
Shine - clean and inspect work area regularly
Standardize - establish procedures and schedules for maintaining the first 3 S's
Sustain - mai...
I applied via Approached by Company and was interviewed in Feb 2023. There were 3 interview rounds.
Resistance can be calculated using Ohm's Law, which states that resistance is equal to voltage divided by current.
Use Ohm's Law: R = V / I
Resistance is measured in ohms (Ω)
Voltage is measured in volts (V)
Current is measured in amperes (A)
Example: If the voltage is 12V and the current is 2A, the resistance would be 6Ω
Colour coding is a system of assigning colours to objects or information to convey meaning or identification.
Used in various fields such as electronics, wiring, and safety equipment
Example: Red wire indicates positive polarity in electronics
Example: Red colour on safety equipment indicates fire hazard
Helps in quick identification and reduces errors
Color coding is used to identify the resistance value of a resistor.
The first band represents the first digit of the resistance value.
The second band represents the second digit of the resistance value.
The third band represents the multiplier.
The fourth band represents the tolerance.
For example, a resistor with brown, black, red, and gold bands has a resistance value of 1.0 ohm with a tolerance of +/- 5%.
Embedded system is a computer system designed to perform specific tasks, with dedicated functions and limited resources.
Embedded systems are found in various devices such as smartphones, cars, medical equipment, and home appliances.
They are designed to be reliable, efficient, and often operate in real-time.
Embedded systems typically consist of a microcontroller or microprocessor, memory, input/output interfaces, and so...
Embedded systems are useful for controlling and monitoring various devices and systems.
Embedded systems are used in a wide range of applications such as consumer electronics, automotive systems, industrial automation, and medical devices.
They provide real-time control and monitoring capabilities, allowing devices to respond quickly and accurately to external events.
Embedded systems are often used in safety-critical app...
The Six Sigma rule is a data-driven approach to improve quality by minimizing defects in processes.
Six Sigma aims for a maximum of 3.4 defects per million opportunities.
It uses statistical methods to identify and eliminate causes of defects.
The methodology includes Define, Measure, Analyze, Improve, and Control (DMAIC) phases.
Example: In manufacturing, reducing defects in a production line to enhance product quality.
The different types of layers in PCBs are signal layer, power plane layer, ground plane layer, and silkscreen layer.
Signal layer: Carries electrical signals between components
Power plane layer: Provides power distribution throughout the board
Ground plane layer: Provides a reference point for electrical signals and helps with noise reduction
Silkscreen layer: Contains component outlines, reference designators, and other ...
Various components like resistors, capacitors, transistors, and diodes are used in circuits to control the flow of electricity.
Resistors: Limit current flow, control voltage levels
Capacitors: Store and release electrical energy
Transistors: Amplify or switch electronic signals
Diodes: Allow current to flow in one direction only
5s system is a methodology for organizing a workplace to improve efficiency and effectiveness by eliminating waste and maintaining cleanliness.
Sort - separate needed tools, materials, and instructions from unneeded items
Set in order - neatly arrange items for easy access and use
Shine - clean and inspect work area regularly
Standardize - establish procedures and schedules for maintaining the first 3 S's
Sustain - maintain...
High voltage PCBs can be checked using insulation resistance testing, visual inspection, and continuity testing.
Perform insulation resistance testing using a megohmmeter to check for any leakage current or breakdown voltage issues.
Conduct visual inspection for any physical damage, burnt components, or signs of arcing.
Use continuity testing to ensure proper connections and no open circuits on the PCB.
Check for any abnor...
I applied via Campus Placement and was interviewed in Dec 2024. There was 1 interview round.
CSS stands for Cascading Style Sheets. Time complexity of merge sort is O(n log n) and binary search is O(log n).
CSS stands for Cascading Style Sheets and is used for styling web pages.
Time complexity of merge sort is O(n log n) where n is the number of elements in the array.
Time complexity of binary search is O(log n) where n is the number of elements in the array.
Merge sort has a time complexity of O(n log n) and binary search has a time complexity of O(log n).
Merge sort has a time complexity of O(n log n) because it divides the array into halves and merges them back together.
Binary search has a time complexity of O(log n) because it halves the search space in each iteration.
Example: For an array of size n, merge sort takes O(n log n) time to sort the array and binary search ta...
I applied via Campus Placement and was interviewed in Nov 2024. There were 3 interview rounds.
Basic que on oops dbms apti etc
mutable keyword allows a member variable of a class to be modified even if the object is declared as const.
Used to modify a const object's member variable
Does not affect the const-ness of the object itself
Helpful when caching values in a const member function
Inline functions in C++ are functions that are expanded in place at the point of call, rather than being called like regular functions.
Inline functions are typically used for small, frequently called functions to reduce the function call overhead.
They can improve performance by eliminating the function call and return overhead.
Inline functions should be used judiciously as they can increase code size if overused.
Exampl...
Research the company's mission, values, products, and recent news to understand its impact and culture.
Understand the company's mission statement and core values, e.g., 'Innovation and sustainability'.
Familiarize yourself with the products or services offered, such as 'XYZ Corp's software solutions'.
Stay updated on recent news or achievements, like 'XYZ Corp's recent award for best workplace'.
Know the industry trends t...
I applied via Job Fair and was interviewed in Oct 2024. There was 1 interview round.
SAP P Work Bid Create FLM is a process in SAP for creating a bid in the system.
FLM stands for Flexible Learning Module
SAP P Work is a module in SAP for managing procurement processes
Creating a bid involves entering details such as pricing, quantities, and delivery terms
I applied via Company Website
General Aptitude test not so low level questions as well as not so hard level questions.
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
The OSI model stands for Open Systems Interconnection model.
It consists of seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has specific functions and communicates with the adjacent layers.
Example: The Physical layer deals with the p...
I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.
Transformers are devices that transfer electrical energy between two or more circuits through electromagnetic induction.
Transformers consist of primary and secondary coils wound around a core made of ferromagnetic material.
They work on the principle of electromagnetic induction, where changing current in the primary coil induces a voltage in the secondary coil.
Transformers are used to step up or step down voltage level...
Microcontrollers are small computers on a single integrated circuit used to control electronic devices.
Microcontrollers are often used in embedded systems for specific tasks.
They contain a CPU, memory, and input/output peripherals on a single chip.
Examples include Arduino, Raspberry Pi, and PIC microcontrollers.
I applied via Naukri.com and was interviewed in Jul 2024. There were 3 interview rounds.
I appeared for an interview in Apr 2025, where I was asked the following questions.
Effective vendor follow-up ensures timely communication, builds relationships, and enhances procurement efficiency.
Establish Clear Communication: Set expectations for response times and preferred communication channels. For example, agree to weekly email updates.
Use a Tracking System: Implement a system to track vendor interactions and follow-ups. This could be a simple spreadsheet or a dedicated software tool.
Be Proac...
Adding a new vendor involves evaluating, onboarding, and integrating them into the procurement process effectively.
Vendor Evaluation: Assess potential vendors based on criteria like quality, price, reliability, and service. For example, compare multiple suppliers for raw materials.
Documentation: Gather necessary documentation from the vendor, such as business licenses, tax information, and insurance certificates to ens...
I applied via Company Website and was interviewed in Jul 2024. There were 2 interview rounds.
First angle projection is a method of representing a 3D object in 2D by projecting the object onto a plane from the perspective of the viewer.
In first angle projection, the object is placed in the first quadrant of the viewing plane.
The top view is placed above the front view and the side view is placed to the right of the front view.
This method is commonly used in Europe and Asia.
It is important to understand the orie...
Refer R S khurumi, mechanical objective book
A thermodynamic cycle is a series of processes that involve the transfer of heat and work to and from a system.
Involves a series of processes that form a closed loop
Transfer of heat and work occurs during each process
Common examples include the Carnot cycle, Rankine cycle, and Brayton cycle
I applied via Company Website and was interviewed in Jun 2024. There were 2 interview rounds.
To manage under processing for team members, provide clear instructions, set realistic goals, offer support and resources, monitor progress, and provide feedback.
Provide clear instructions on tasks and expectations
Set realistic goals and deadlines
Offer support and resources to help team members succeed
Monitor progress regularly to identify any issues or delays
Provide constructive feedback to help improve performance
Production lines are designed to handle non-stop flow of materials or products efficiently.
Implementing automated systems to ensure continuous flow of materials
Utilizing sensors and monitoring systems to track inventory levels and prevent shortages
Implementing lean manufacturing principles to optimize production flow
Training employees on efficient production line operation
Regular maintenance and upkeep of machinery to ...
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