Mahabal Enviro Engineers Interview Questions and Answers

Q1. SQL questions such as case statement, joins and advanced sql question.
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Q2. PLSQL, tableau basic to advanced question
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Q1. Bureau operations,credit data
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Q2. Career goals and future plans
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Q1. Only two rounds were there
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Q2. Na rounds happened after two rounds
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Q1. Unica technical questions
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Q2. What is flow chart
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Q1. Technical ask about macro and treatment code
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Q2. Campaign attributes
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Q1. Psi mins full form
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PSI stands for Pounds per Square Inch, a unit of pressure measurement commonly used in engineering and physics.
• PSI is used to measure pressure in various systems, such as in pneumatic tools, hydraulic systems, and air compressors.

• 1 PSI is equal to 0.068046 atmospheres or 6,894.76 Pascals.

• For example, a car tire may require inflation to 32 PSI for optimal performance.
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Q2. Firing strocks position
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Firing strokes position refers to the position of the firing strokes in an engine.
• Firing strokes position is crucial for the proper functioning of the engine.

• The firing order of the engine determines the position of the firing strokes.

• Incorrect firing strokes position can lead to engine misfires or damage.

• Common firing orders include 1-3-4-2 for a 4-cylinder engine and 1-8-4-3-6-5-7-2 for a V8 engine.
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Q3. How to work hyd.pump
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To work a hydraulic pump, you need to understand its components and operation.
• Understand the basic components of a hydraulic pump such as the inlet, outlet, and pistons.

• Ensure the pump is properly connected to a power source and the hydraulic system.

• Monitor the pump's pressure and flow rate to ensure optimal performance.

• Regularly check and maintain the pump to prevent any malfunctions or breakdowns.

• Examples: Gear pump,
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Q4. Injectors leack off test
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Q5. How to use torque gun
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A torque gun is a tool used to apply torque to fasteners such as nuts and bolts.
• Ensure the torque gun is set to the correct torque value for the fastener being tightened.

• Hold the torque gun perpendicular to the fastener and apply pressure while pulling the trigger.

• Listen for the click or beep indicating the desired torque has been reached.

• Do not over-tighten the fastener as it can cause damage.

• Regularly calibrate and m
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Q1. What is coalesce
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Coalesce is a function used to return the first non-null value in a list of expressions.
• Coalesce function is commonly used in SQL to handle null values.

• It takes multiple arguments and returns the first non-null value.

• Example: COALESCE(column1, column2, 'default') will return the value of column1 if not null, else column2, and if both are null, it will return 'default'.
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Q2. What is repartition
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Repartition is the process of redistributing data across partitions in a distributed system.
• Repartitioning helps in balancing the workload and improving performance in distributed computing environments.

• It involves moving data between partitions based on certain criteria such as key values or hash functions.

• Repartitioning can be done in Spark using operations like repartition() or coalesce().
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Q1. Non repeatable character
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A non repeatable character is a character that appears only once in a given string.
• Iterate through the string and count the frequency of each character

• Identify the characters that have a frequency of 1

• Return the first non repeatable character found
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Q2. Sort list without sort method
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Sort list without using sort method
• Create a custom sorting function using loops

• Compare each element with every other element to determine the correct order

• Swap elements based on the comparison results
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Q1. Past Experience and Work profile
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Q2. Future plan and work strategy in Axis My India.
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My future plan in Axis My India is to implement data-driven strategies for accurate predictions and expand our reach in untapped regions.
• Implement data-driven strategies to improve accuracy of predictions

• Expand reach in untapped regions through targeted marketing campaigns

• Enhance customer engagement through personalized communication

• Invest in research and development for innovative solutions

• Collaborate with local partn
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Q1. Past Experience And Work profile in previous organization
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Q2. Basic question from your work experience
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Market size and value of India diagnostics market

Q1. Talk about your previous experience and gave your presentation of the assignment
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Q2. Talk about yourself
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I am a detail-oriented and analytical individual with a strong background in data analysis and problem-solving.
• Graduated with a degree in Statistics

• Proficient in statistical software such as R and Python

• Experience in analyzing large datasets to derive insights

• Strong communication skills for presenting findings to stakeholders
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Q3. What were your previous projects related custom and syndicate
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I have worked on various custom and syndicate projects in my previous roles.
• Led a team in developing a custom market research report for a pharmaceutical company

• Contributed to syndicate reports on consumer behavior trends in the tech industry

• Collaborated with clients to tailor research findings to their specific needs
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