Maharashtra Electro-mechanical Works QC Engineer Interview Questions and Answers

C++ ,Java , CAD , CNC programming, Data analytics

Q1. What product management ur doing
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Q2. Where did you undergo your technical traing
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Q3. Where did u place most of your focus when reviewing somebody else code
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Q4. What did you develop
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Q5. What was the project before you are doing
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Q1. Difference between BUG and Defect
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A bug is a general term for any flaw or error in a software application, while a defect is a specific instance of a bug that causes a deviation from expected behavior.
• Bug is a broader term encompassing all types of issues in software.

• Defect is a specific instance of a bug that can be identified and fixed.

• Example: Bug - Application crashes randomly. Defect - Button does not work as intended.

• Example: Bug - Incorrect calc...read more
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Q2. What is Agile?
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Agile is a project management methodology that emphasizes flexibility, collaboration, and iterative development.
• Agile focuses on delivering value to customers through continuous collaboration and feedback.

• It involves breaking down projects into smaller, manageable tasks called sprints.

• Teams work in short iterations to adapt to changing requirements and deliver working software quickly.

• Common Agile frameworks include Sc
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Q1. What is SDLC explain it?
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SDLC stands for Software Development Life Cycle, a process used by software development teams to design, develop, and test high-quality software.
• SDLC is a systematic process for building software applications.

• It consists of several phases including planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables.

• Examples of SDLC models include Waterfall, Agi
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Q2. Explain the scenarios to be tested for movie ticket booking app.
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Scenarios to test movie ticket booking app include user registration, movie selection, seat selection, payment processing, and booking confirmation.
• User registration process

• Movie selection and availability

• Seat selection and seating arrangement

• Payment processing and options

• Booking confirmation and ticket generation
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Q1. In 5 years where you would be?
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In 5 years, I see myself as a Senior Quality Engineer leading a team of quality professionals in a reputable company.
• Continuing to enhance my skills and knowledge in quality engineering

• Taking on more leadership responsibilities within the quality department

• Contributing to the development and implementation of quality improvement initiatives

• Building strong relationships with cross-functional teams to drive quality goals

• ...read more
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Q2. What are the expectation you have?
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I expect clear communication, challenging projects, opportunities for growth, and a supportive team environment.
• Clear communication with team members and stakeholders

• Challenging projects that allow me to utilize my skills and knowledge

• Opportunities for professional growth and development

• A supportive team environment that fosters collaboration and innovation
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Hydraulic systems and hydraulic machines.

Q1. What is the difference between BS4 and BS6 emissions standards?
Ans. 
BS6 emissions standards are more stringent than BS4, with lower limits on emissions of pollutants like nitrogen oxides and particulate matter.
• BS6 standards have stricter limits on emissions of pollutants like nitrogen oxides (NOx) and particulate matter (PM) compared to BS4.

• BS6 compliant vehicles are required to have advanced emission control technologies like selective catalytic reduction (SCR) and diesel particulate ...read more
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Q2. What is the difference between an electric motor and an electric generator?
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An electric motor converts electrical energy into mechanical energy to produce motion, while an electric generator converts mechanical energy into electrical energy.
• Electric motor converts electrical energy into mechanical energy

• Electric generator converts mechanical energy into electrical energy

• Electric motor is used in appliances like fans, washing machines

• Electric generator is used in power plants to generate electr
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Q3. Difference between four stroke and two stroke engine
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Four stroke engines have separate intake, compression, power, and exhaust strokes, while two stroke engines combine intake and compression in one stroke and power and exhaust in another.
• Four stroke engines have a dedicated stroke for each of the four processes: intake, compression, power, and exhaust

• Two stroke engines combine intake and compression in one stroke and power and exhaust in another

• Four stroke engines are m...read more
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Q1. Write the program -> input -> aabbccc. Output -> a2b2c3
Ans. 
Program to count consecutive characters in a string
• Iterate through the string and compare each character with the next one

• Maintain a count for each character and append to the output string when a different character is encountered

• Example: input 'aabbccc' -> output 'a2b2c3'
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Q2. Write the dynamic xpath (both relative and absolute)
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Dynamic xpath is a way to locate elements on a web page based on changing attributes or positions.
• Use functions like contains(), starts-with(), or ends-with() to create dynamic xpaths

• Avoid using indexes in xpaths as they can change with page updates

• Consider using unique attributes or text within the element to create a reliable xpath
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Q3. API difference between put and patch
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PUT is used to update or replace an entire resource, while PATCH is used to update specific fields of a resource.
• PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

• PATCH is not necessarily idempotent, as multiple identical requests may have different effects.

• PUT requires the client to send the entire updated resource, while PATCH only requires the client to send the spe
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Q4. Basic SQL query
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Q1. What is the average rating for a company like Cognizant from your side
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Q2. What is the annual child birth ratio of an average Indian ?
Ans. 
The annual child birth ratio of an average Indian is approximately 2.3 children per woman.
• The total fertility rate in India is around 2.3 children per woman.

• This rate varies across different states and regions in India.

• Factors such as education, socio-economic status, and cultural norms influence the fertility rate.

• For example, states like Bihar and Uttar Pradesh have higher fertility rates compared to Kerala and Tamil
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Q3. What are the ways through which a company can startup or switch on with their collaborating projects?
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Q4. What are the general concepts which we can apply when there is a crisis happens to our company ?
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During a crisis, general concepts to apply include effective communication, quick decision-making, adaptability, and teamwork.
• Effective communication is crucial to keep all stakeholders informed and aligned.

• Quick decision-making is necessary to address the crisis promptly and minimize its impact.

• Adaptability is key to adjusting strategies and plans as the situation evolves.

• Teamwork is essential for pooling resources an
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Q5. When does an employer renew his/her contract after the notice period or before the notice period
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Employers typically renew contracts before the notice period.
• Employers usually renew contracts before the notice period to ensure continuity in the work relationship.

• Renewing the contract before the notice period allows both parties to plan ahead and make necessary arrangements.

• In some cases, employers may choose to renew the contract during the notice period if negotiations are ongoing.

• It is important for employers to...read more
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The aptitude test consists of 26 questions, including 2 coding questions.

Q1. What is Data Structures
Ans. 
Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.
• Data structures define the way data is stored, accessed, and manipulated in a computer program.

• Examples include arrays, linked lists, stacks, queues, trees, and graphs.

• Choosing the right data structure is crucial for optimizing the performance of algorithms and applications.
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Q2. Explain a Binary Search Tree
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A Binary Search Tree (BST) is a data structure where each node has at most two children, with the left child being less than the parent and the right child being greater.
• Nodes in a BST are arranged in a hierarchical order where each node has a left child and a right child.

• The left child of a node contains a value less than the parent node, while the right child contains a value greater than the parent node.

• BST allows f...read more
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Q3. Dijkstra Algorithm
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Dijkstra's Algorithm is a graph search algorithm for finding the shortest path from a single source to all other nodes in a graph with non-negative edge weights.
• Dijkstra's Algorithm is used in various applications such as network routing protocols, GPS systems, and road navigation.

• It works by maintaining a set of nodes with known shortest distance from the source and iteratively expanding this set by adding the nearest...read more
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Q1. Questions on Resume
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Reasoning , mathematics

Q1. What is behaviour ?
Ans. 
Behaviour refers to the way in which a person or animal acts or conducts themselves in response to a particular situation or stimulus.
• Behaviour is influenced by genetics, environment, and past experiences.

• It can be observed and measured through actions, reactions, and responses.

• Behaviour can be categorized as either innate (instinctual) or learned.

• Examples of behaviour include aggression, shyness, curiosity, and friend
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Q2. What is the best method in power transfers?
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The best method in power transfers is through high voltage transmission lines.
• High voltage transmission lines are more efficient in transferring power over long distances.

• Using transformers to step up the voltage before transmission and step down the voltage at the receiving end helps minimize power loss.

• HVDC (High Voltage Direct Current) transmission is another efficient method for long distance power transfers.

• Smart ...read more
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Q1. What is current
Ans. 
Current is the flow of electric charge through a conductor.
• Current is measured in Amperes (A)

• It is the rate of flow of electric charge

• Current can be either direct current (DC) or alternating current (AC)

• Examples: A light bulb connected to a power source has current flowing through it

• In a circuit, current flows from the positive terminal of the voltage source to the negative terminal
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Q2. What are the method to convert in inverter
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Methods to convert inverter include pulse width modulation, sine wave modulation, and square wave modulation.
• Pulse width modulation (PWM) is a common method used to convert inverter signals by varying the width of the pulses.

• Sine wave modulation involves generating a sine wave signal to mimic the output of an inverter.

• Square wave modulation produces a square wave output by switching between high and low voltage levels.

• ...read more
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Q1. Question incomplete - please add more details
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Q2. Question are incomplete - please add more details
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