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. What is single line diagram
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A single line diagram is a simplified representation of a power system using standardized symbols to show the electrical connections and components.
• It shows the main components of the system such as generators, transformers, breakers, etc.

• Lines represent electrical connections between components.

• It is used for planning, designing, and analyzing power systems.

• Helps in understanding the flow of power and identifying pote...read more
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Q2. Whai is transfirmer
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Consists of two coils of wire, known as primary and secondary coils

• Primary coil is connected to a power source, inducing a magnetic field

• Magnetic field causes voltage to be induced in the secondary coil

• Used to step up or step down voltage levels in electrical systems

• Commonly used in power distributi
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Q3. What is generator
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A generator is a device that converts mechanical energy into electrical energy.
• Generators use electromagnetic induction to produce electricity

• They are commonly used in power plants, homes, and businesses

• Examples include diesel generators, wind turbines, and hydroelectric generators
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Q4. Whai is motor and working
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A motor is a device that converts electrical energy into mechanical energy to produce motion.
• Motors consist of a rotor and a stator, with the rotor rotating within the stator.

• They work based on the principle of electromagnetic induction, where a current-carrying conductor experiences a force in a magnetic field.

• Motors are used in various applications such as industrial machinery, household appliances, and electric vehi
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Q1. Roles and responsibilities in current project.
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As a Quality Engineer in my current project, my roles and responsibilities include ensuring compliance with quality standards, conducting quality audits, analyzing data to identify areas for improvement, and implementing corrective actions.
• Ensuring compliance with quality standards and regulations

• Conducting quality audits to identify areas for improvement

• Analyzing data to track quality metrics and trends

• Implementing co...read more
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Q2. Difference between smoke and sanity testing?
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Smoke testing is a quick test to check if the software build is stable, while sanity testing is a more thorough test to check specific functionalities.
• Smoke testing is done to ensure the critical functionalities of the software are working fine after a build, while sanity testing is done to verify specific features or functionalities.

• Smoke testing is usually done before detailed testing, while sanity testing is done af...read more
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Q3. Your role in bug triage meeting.
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In bug triage meetings, I analyze reported bugs, prioritize them based on severity and impact, assign them to appropriate team members, and track their resolution.
• Analyze reported bugs to understand the root cause and impact

• Prioritize bugs based on severity and impact on users

• Assign bugs to appropriate team members for resolution

• Track the progress of bug resolution and ensure timely closure
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Q4. How do you handle when there is a conflict between Dev and QA team on bugs raised?
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Address conflicts by facilitating open communication, understanding both perspectives, and finding a mutually agreeable solution.
• Encourage open communication between Dev and QA teams to understand each other's perspectives

• Review the bug reports together to identify the root cause of the conflict

• Facilitate discussions to reach a mutually agreeable solution, considering the impact on the project timeline and quality

• Estab...read more
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Q1. How do you handle when there's a requirement change nearing to the end of a sprint
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Q2. Reason for leaving current organization
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Seeking new challenges and growth opportunities
• Desire for career advancement

• Looking for a more challenging role

• Seeking opportunities for professional development

• Company restructuring or downsizing

• Relocation to a new area
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Q3. Tell me about anything you haven't mentioned in your resume.
Ans. 
I have experience in implementing lean manufacturing principles in a previous role.
• Implemented 5S methodology to improve organization and efficiency in the workplace

• Led Kaizen events to identify and eliminate waste in production processes

• Trained team members on lean principles and continuous improvement techniques
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Hydraulic systems and hydraulic machines.

Q1. What is the difference between BS4 and BS6 emissions standards?
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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?
Ans. 
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
Ans. 
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 ?
Ans. 
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
Ans. 
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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Basics maths and reasoning

Q1. What is your experience with writing test cases?
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Q2. Some scenarios writing
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