20+ RevSoc Digital Interview Questions and Answers

Explanation of polymorphism, function overloading/overriding, virtual function, and friend function.

• Polymorphism is the ability of an object to take on many forms.

• Function overloading is having multiple functions with the same name but different parameters.

• Function overriding is having a derived class provide its own implementation of a method that is already provided by its parent class.

• Virtual functions are functions that can be overridden in derived classes.

• Friend function...read more

Regression testing is testing the entire application after a change, while retesting is testing a specific bug fix.

• Regression testing is done to ensure that new code changes do not adversely affect existing functionality.

• Retesting is done to verify that a specific bug or issue has been fixed.

• Regression testing includes testing all the previously tested features to ensure they still work correctly.

• Retesting focuses on the specific bug or issue that was fixed.

• Examples of regres...read more

Automate feature to read and modify parent and child nodes

• Use a scripting language like Python to automate the process

• Identify parent nodes and their corresponding child nodes

• Implement functions to read and modify node names

• Utilize libraries like Selenium for web automation if nodes are on a webpage

I will highlight the superior quality, unique features, and benefits of our premium product compared to domestic competition.

• Emphasize the superior quality and craftsmanship of our premium product

• Highlight the unique features and benefits that set our product apart from domestic competition

• Provide examples of customer testimonials or case studies showcasing the value and performance of our premium product

I will investigate the root cause, analyze logs, and work on fixing the issue to prevent future crashes.

• Investigate the crash logs to identify the root cause

• Analyze the code to understand the issue

• Implement a fix for the crash

• Test the fix thoroughly before deploying it

• Implement monitoring and alerting to catch similar issues in the future

Pumps, fans, gearboxes, compressors, motors, and generators are essential components in various mechanical systems.

• Pumps are used to move fluids, such as water or oil, through a system.

• Fans are used to create airflow for cooling or ventilation purposes.

• Gearboxes are used to transmit power from one component to another at different speeds or torques.

• Compressors are used to increase the pressure of a gas, such as in air conditioning systems.

• Motors are used to convert electrical...read more

In SolidWorks, constraints are used to define relationships between different components in a model. The number of constraints needed can vary depending on the complexity of the model.

• The number of constraints required depends on the number of components in the model and the desired relationships between them.

• Common types of constraints include coincident, parallel, perpendicular, tangent, concentric, and distance constraints.

• For example, to fully constrain a simple rectangul...read more

Test case for weight vending machine to ensure accurate measurement and dispensing of items.

• Verify that the machine displays the correct weight of the item being measured.

• Test if the machine dispenses the correct amount of item based on the weight entered.

• Check if the machine recalibrates properly after dispensing multiple items.

• Ensure that the machine alerts the user if the weight measurement is inaccurate.

Piping stress is the stress induced in a piping system due to various loads and forces.

• Piping stress can be caused by thermal expansion, pressure, weight, vibration, and seismic activity.

• It can lead to deformation, leakage, and failure of the piping system.

• Piping stress analysis is done to ensure the safe and reliable operation of the piping system.

• Factors such as material properties, pipe routing, and support design are considered in piping stress analysis.

• Piping stress can ...read more

SQL performance can be optimized by using indexes, optimizing queries, minimizing network round trips, and using proper data types.

• Use indexes on columns frequently used in WHERE clauses to speed up data retrieval.

• Optimize queries by avoiding unnecessary joins, using WHERE clauses effectively, and limiting the number of rows returned.

• Minimize network round trips by batching multiple queries into a single request.

• Use proper data types to ensure efficient storage and retrieval ...read more

Piping materials are the materials used for constructing pipes that transport fluids or gases.

• Piping materials can be metallic or non-metallic.

• Common metallic piping materials include carbon steel, stainless steel, copper, and aluminum.

• Non-metallic piping materials include PVC, CPVC, fiberglass, and HDPE.

• The choice of piping material depends on factors such as the type of fluid or gas being transported, temperature, pressure, and environmental conditions.

Control logic of a turbine involves regulating the flow of fuel and air to maintain desired speed and power output. Operation of a turbine includes starting, monitoring, and shutting down the turbine.

• Control logic of a turbine involves adjusting fuel and air flow based on speed and power requirements

• Operation of a turbine includes starting procedures such as pre-purge and ignition sequence

• Monitoring turbine operation involves checking parameters like temperature, pressure, an...read more

Piping refers to the system of pipes used to transport fluids or gases from one location to another.

• Piping is used in a variety of industries, including oil and gas, chemical, and power generation.

• It can be made from a variety of materials, including steel, copper, and plastic.

• Piping systems can be complex and require careful design and installation to ensure proper flow and pressure.

• Maintenance and inspection of piping systems is important to prevent leaks and ensure safety....read more

Data collection process involves gathering, recording, and storing information for analysis and decision-making.

• Identify the data needed for analysis

• Determine the method of data collection (surveys, interviews, observations, etc.)

• Collect data using appropriate tools and techniques

• Ensure data accuracy and reliability

• Store data securely for future reference

• Analyze collected data to draw conclusions and make decisions

Condition monitoring of tools involves regularly checking and analyzing the performance and health of tools to prevent breakdowns.

• Regularly inspect tools for signs of wear and tear

• Use sensors to monitor tool performance in real-time

• Analyze data collected to predict potential failures

• Implement preventive maintenance based on monitoring results

P&ID stands for Piping and Instrumentation Diagram, used in engineering to show the piping of a process flow together with the installed equipment and instrumentation.

• P&ID is a detailed diagram that shows the piping of a process flow, along with the equipment and instrumentation used in the process.

• It is used in engineering to understand the design, construction, and operation of a process plant or industrial facility.

• P&IDs are essential for engineers, operators, and maintena...read more

Emarson manufactures a wide range of products for various industries.

• Emarson produces CNC machines for metal fabrication.

• They also manufacture CNC routers for woodworking applications.

• Emarson offers CNC plasma cutting machines for metal cutting.

• They produce CNC laser cutting machines for precise and intricate cutting.

• Emarson manufactures CNC milling machines for precision milling operations.

• They also produce CNC lathes for turning operations.

• Emarson offers CNC drilling machin...read more

Polymorphism in OOPS refers to the ability of a single function or method to operate on different types of data.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance allows a child class to override a method of its parent class, providing different implementations.

Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing a software bug.

• Bug identification by QA engineer

• Bug reporting with detailed steps to reproduce

• Bug fixing by development team

• Bug retesting to ensure it is resolved

• Bug closure after verification

The power plant process involves converting fuel into electricity through various stages.

• Fuel is burned to produce heat

• Heat is used to create steam

• Steam turns a turbine

• Turbine generates electricity

• Electricity is sent to the grid for distribution