20+ Interview Questions and Answers

The direction of fluid flow in a vertical pipe depends on the pressure difference between two vertical locations.

• Fluid flows from high pressure to low pressure.

• If the pressure at the lower location is higher than the pressure at the upper location, the fluid will flow downwards.

• If the pressure at the upper location is higher than the pressure at the lower location, the fluid will flow upwards.

• The magnitude of the pressure difference determines the rate of fluid flow.

To find if a point is inside or outside of a regular polygon, we can use the Ray Casting algorithm.

• Draw a line from the point to a point outside the polygon

• Count the number of times the line intersects with the polygon edges

• If the number of intersections is odd, the point is inside the polygon

• If the number of intersections is even, the point is outside the polygon

I handle negative outcomes by analyzing the root cause and identifying potential solutions.

• I remain calm and objective to avoid making hasty decisions.

• I review the data and identify the root cause of the negative outcome.

• I brainstorm potential solutions and evaluate their feasibility.

• I implement the best solution and monitor its effectiveness.

• I use the experience as a learning opportunity to improve future outcomes.

Shaft alignment in hydel power projects is carried out using laser alignment tools and techniques.

• Laser alignment tools are used to measure and correct shaft misalignment.

• The process involves measuring the offset and angular misalignment of the shafts.

• The readings are then used to adjust the position of the shafts until they are aligned within the required tolerances.

• Alignment is critical for efficient and safe operation of the hydel power project.

• Examples of laser alignment ...read more

There are various types of compressors used in power plants such as centrifugal, reciprocating, screw, and axial flow compressors.

• Centrifugal compressors are commonly used in power plants for air compression.

• Reciprocating compressors are used for high-pressure applications.

• Screw compressors are used for low-pressure applications.

• Axial flow compressors are used for large volumes of air at low pressure.

• Other types of compressors used in power plants include diaphragm compressor...read more

A flip flop is a digital circuit that can store one bit of information. A piezoelectric sensor is a device that converts mechanical energy into electrical energy.

• A flip flop is a type of sequential logic circuit that can store and remember a single bit of information.

• It has two stable states, namely SET and RESET, which can be changed based on the input signals.

• Flip flops are widely used in digital electronics for memory storage, data synchronization, and clocking signals.

• Exa...read more

Productivity of equipment can be measured by factors like utilization rate, downtime, and efficiency.

• Productivity of equipment can be measured by factors such as utilization rate, downtime, and efficiency.

• Utilization rate is calculated by dividing actual working hours by total available hours.

• Downtime refers to the time when equipment is not operational, impacting productivity.

• Efficiency is determined by comparing actual output to expected output.

• Examples of equipment product...read more

No, if an object is defined with 'const' keyword, it cannot be modified in the future.

• Objects defined with 'const' keyword are read-only and cannot be reassigned.

• Properties of a 'const' object can still be modified, but the object itself cannot be reassigned.

• Example: const obj = { key: 'value' }; obj.key = 'new value'; // Valid, but obj = { newKey: 'newValue' }; // Invalid

Different types of level instruments can be used in different applications depending on the requirements.

• For continuous level measurement, ultrasonic level sensors can be used.

• For point level detection, capacitance level switches can be used.

• For high-temperature applications, guided wave radar level sensors can be used.

• For corrosive or aggressive liquids, magnetic level gauges can be used.

• For level measurement in open tanks, radar level sensors can be used.

ExxonMobil is involved in oil and gas exploration, production, and marketing in India.

• ExxonMobil has a 25% stake in a liquefied natural gas (LNG) terminal in Gujarat.

• The company is also involved in a joint venture with Indian Oil Corporation to manufacture and market lubricants.

• ExxonMobil is exploring opportunities for shale gas development in India.

• The company has a research and development center in Bangalore.

• ExxonMobil is committed to reducing greenhouse gas emissions in I...read more

I have handled various equipments including computers, servers, routers, switches, and printers.

• Computers

• Servers

• Routers

• Switches

• Printers

The overall refinery setup typically includes crude oil distillation units, catalytic cracking units, hydrotreating units, and various other processing units.

• Crude oil distillation units separate crude oil into different fractions based on boiling points

• Catalytic cracking units break down heavy hydrocarbons into lighter products like gasoline and diesel

• Hydrotreating units remove impurities like sulfur from products to meet environmental regulations

• Other processing units may i...read more

Hadoop data architect is responsible for designing and implementing the data architecture for Hadoop-based solutions.

• Designing and implementing data architecture for Hadoop-based solutions

• Ensuring data is stored efficiently and securely

• Optimizing data processing and retrieval

• Working with other teams to ensure data integration and compatibility

• Examples: designing a data lake architecture for a large retail company, implementing a real-time data processing pipeline for a financ...read more

Porosity is the measure of empty space in a rock while permeability is the ability of fluids to flow through the rock.

• Porosity refers to the percentage of void space in a rock or sediment, which can hold fluids like oil or water.

• Permeability is a measure of how easily fluids can flow through the interconnected pore spaces in a rock.

• Generally, rocks with high porosity tend to have high permeability, allowing fluids to flow more easily.

• However, there can be exceptions where roc...read more

Decorators in Python are functions that modify the behavior of other functions or methods.

• Decorators are denoted by the @ symbol followed by the decorator function name.

• They are commonly used for logging, authentication, and memoization.

• Example: @staticmethod, @classmethod, @property

I am currently handling 10 distributors.

• I am responsible for managing the sales activities of 10 distributors.

• I ensure that the distributors are meeting their sales targets and are properly trained.

• I maintain a good relationship with the distributors to ensure smooth business operations.

• I regularly monitor the performance of the distributors and provide feedback to improve their sales.

• Examples of the distributors I handle are ABC Distributors, XYZ Distributors, and LMN Distri...read more

Challenges in well testing include equipment malfunctions, environmental factors, and data interpretation.

• Equipment malfunctions can lead to inaccurate results.

• Environmental factors such as weather conditions or nearby activities can affect testing.

• Data interpretation can be complex and require specialized knowledge.

• Pressure build-up in the well can also pose challenges during testing.

Fluid is a substance that flows and takes the shape of its container.

• Fluid is a state of matter that has no fixed shape and yields easily to external pressure.

• Examples of fluids include water, air, and oil.

• Fluids can be classified as liquids or gases based on their properties.