Oil Lube Systems Interview Questions and Answers

Moderate aptitude questions.

String-based questions and DMA-based questions.

Q1. Communication protocols.
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Q2. Knowledge about communication protocols workings
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Sliding window leet code style

Computer vision task. Image segmentation

Q1. What was the algorithm you used in the task
Ans. 
I used the Random Forest algorithm for the task.
• Random Forest is an ensemble learning method that builds multiple decision trees and merges them together to get a more accurate and stable prediction.

• It is commonly used for classification and regression tasks.

• Example: RandomForestClassifier in scikit-learn library.
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Q2. What are metrics you can use for this task
Ans. 
Metrics for evaluating machine learning tasks
• Accuracy

• Precision

• Recall

• F1 Score

• ROC AUC

• Confusion Matrix
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Q1. A presentation of a past project with followup questions
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Q2. Some questions on text classification
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Q1. About myself/self introduction
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Q2. Experience & achievement
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Q1. Major factoring MWF got affected
Ans. 
Major factoring MWF got affected due to changes in the market demand and supply dynamics.
• Market demand for the product decreased significantly

• Increased competition from other manufacturers

• Changes in consumer preferences impacting sales

• Supply chain disruptions affecting production
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Q2. Process to resolve it
Ans. 
To resolve technical issues, I follow a systematic process involving identification, analysis, troubleshooting, and implementation of solutions.
• Identify the issue by gathering information and analyzing symptoms

• Troubleshoot the problem by testing different solutions and isolating the root cause

• Implement the solution by making necessary changes or repairs

• Verify the resolution by testing the system to ensure the issue is ...read more
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Q1. Technical analysis of process and applications
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Q2. Rectification in complaint and complaint handling process
Ans. 
Rectification in complaint and complaint handling process involves identifying and resolving issues to improve customer satisfaction.
• Identify root cause of the complaint

• Take necessary actions to rectify the issue

• Communicate the resolution to the customer

• Implement measures to prevent similar complaints in the future
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Q1. Dumb HR will ruin the company or maybe they behave how the company wants them to behave.
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Q1. Pe 80 and p100 difference
Ans. 
PE 80 and P100 are different types of polyethylene pipes used in plumbing and construction.
• PE 80 is a type of polyethylene pipe with a minimum required strength (MRS) of 8 MPa, while P100 has an MRS of 10 MPa.

• PE 80 is commonly used for low-pressure applications such as irrigation and drainage, while P100 is used for high-pressure applications like gas distribution.

• PE 80 pipes are typically blue in color, while P100 pip...read more
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Q2. Full information in city gas distribution
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Q3. Difference between associate gas and non associate gas
Ans. 
Associate gas is a gas that is in equilibrium with the liquid phase, while non-associate gas is not in equilibrium with the liquid phase.
• Associate gas molecules are attracted to each other and tend to form a liquid phase at lower temperatures and higher pressures.

• Non-associate gas molecules do not have strong intermolecular forces and remain in the gas phase even at low temperatures and pressures.

• Examples of associate ...read more
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Q4. Laying process in mdpe
Ans. 
MDPE (Medium Density Polyethylene) laying process involves preparing the trench, laying the pipe, and backfilling with suitable material.
• Prepare the trench to the required depth and width

• Lay the MDPE pipe carefully to avoid damage

• Connect the pipes using appropriate fittings and joints

• Backfill the trench with suitable material to provide support and protection to the pipe

• Compact the backfill material to prevent settling
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Q5. Gi process and gi is code
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Q1. Research and development, NPD
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Q2. Project management
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Q1. Project management
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Q2. Quality and team
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Q1. Hydrostatic Head unit, formula?
Ans. 
Hydrostatic Head unit is a measure of water resistance in textiles. Formula: HH = height of water column in mm.
• Hydrostatic Head unit measures the pressure water exerts on a fabric.

• Formula: HH = height of water column in mm.

• Higher HH value indicates better water resistance.

• Example: Fabric with HH of 10,000mm can withstand a 10,000mm water column before leaking.
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Q2. Largest unit of density? Why water not directly used in Drilling?
Ans. 
The largest unit of density is g/cm^3. Water is not directly used in drilling due to its low density compared to drilling fluids.
• The largest unit of density is grams per cubic centimeter (g/cm^3)

• Water has a density of 1 g/cm^3, which is relatively low compared to drilling fluids

• Drilling fluids are used in drilling operations to provide lubrication, cooling, and pressure control
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Q3. Why Packer is used?
Ans. 
Packer is used for creating identical machine images for multiple platforms from a single source configuration.
• Packer helps in automating the process of creating machine images for different platforms like AWS, Azure, VMware, etc.

• It allows for consistent and repeatable builds, ensuring that the images are always up-to-date and secure.

• Packer can be integrated with configuration management tools like Ansible, Chef, or Pu...read more
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Q4. Newton's 1st and 2nd Law of motion?
Ans. 
Newton's 1st law states that an object will remain at rest or in uniform motion unless acted upon by an external force. The 2nd law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
• 1. Newton's 1st Law: An object will remain at rest or in uniform motion unless acted upon by an external force.

• 2. Newton's 2nd Law: The acceleration of an...read more
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Q5. Bernoulli's principle and example.
Ans. 
Bernoulli's principle states that as the speed of a fluid increases, its pressure decreases.
• The principle is based on the conservation of energy in a flowing fluid.

• It is commonly used in aviation to explain lift on an airplane's wings.

• Another example is the flow of water through a pipe where the pressure decreases as the velocity increases.
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Q6. Intro? How and Where did you know about our company? basic HR questions.
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Q1. Basic details of electrical equipment
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Q2. Basic protection of electrical equipment
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