10+ EasyBuy Lifestyle Interview Questions and Answers

Entropy is a measure of disorder or randomness in a system.

• Entropy increases with time in a closed system

• A messy room has higher entropy than a clean room

• Melting of ice is an example of increase in entropy

• Burning of wood is another example of increase in entropy

Flywheel, crankcase, and AVM pre filter are components used in internal combustion engines.

• Flywheel stores rotational energy and helps maintain engine speed during power strokes.

• Crankcase houses the crankshaft and other engine components.

• AVM pre filter is used to remove larger particles from the air before it enters the engine.

• These components are essential for the proper functioning of internal combustion engines.

Thermodynamic processes are various ways in which energy can be transferred to or from a system.

• Isothermal process: constant temperature

• Adiabatic process: no heat transfer

• Isobaric process: constant pressure

• Isochoric process: constant volume

• Examples: carnot cycle, rankine cycle, stirling cycle

Up milling and down milling are two types of milling operations used in machining. Feedrate and RPM calculations are important for optimizing cutting speeds.

• Up milling involves the cutting tool rotating in the opposite direction of the workpiece feed, resulting in a smoother finish.

• Down milling involves the cutting tool rotating in the same direction as the workpiece feed, but can lead to a rougher finish.

• Feedrate calculation is important for determining the speed at which th...read more

Otto cycle is a four-stroke combustion cycle used in spark-ignition engines.

• It consists of four processes: intake, compression, power, and exhaust.

• During the intake stroke, the fuel-air mixture is drawn into the cylinder.

• In the compression stroke, the mixture is compressed to a high pressure and temperature.

• The power stroke is where the spark plug ignites the mixture, causing it to expand and push the piston down.

• Finally, in the exhaust stroke, the spent gases are expelled fr...read more

Factor of safety is the ratio of the maximum stress a material can withstand to the actual stress it is subjected to.

• It is used to ensure the safety and reliability of a design.

• It is calculated by dividing the ultimate strength of a material by the maximum stress it is expected to experience.

• A higher factor of safety indicates a more reliable design.

• Factors of safety vary depending on the application and industry.

• For example, a factor of safety of 2 is common in civil enginee...read more

A flywheel is a mechanical device used in engines to store rotational energy and smooth out fluctuations in engine speed.

• Flywheels are typically made of steel or aluminum and are attached to the engine's crankshaft.

• They store energy during the power stroke and release it during the compression stroke to keep the engine running smoothly.

• Flywheels are also used in hybrid vehicles to store energy from regenerative braking.

• They can be found in a variety of engines, from small gas...read more

Fishbone diagram is a visual tool used to identify the possible causes of a problem or an effect.

• Also known as Ishikawa diagram or cause-and-effect diagram

• Consists of a central spine and branches that represent different categories of potential causes

• Used in quality control, process improvement, and problem-solving

• Example: A fishbone diagram can be used to identify the possible causes of defects in a manufacturing process

Machine design involves various types of mechanisms for efficient functioning.

• Mechanisms include gears, cams, linkages, belts, chains, and pulleys.

• Gears are used for power transmission and speed reduction.

• Cams are used for converting rotary motion to linear motion.

• Linkages are used for transmitting motion and force between two points.

• Belts, chains, and pulleys are used for power transmission.

• Examples of machines that use these mechanisms include engines, conveyor belts, and p...read more

A generator converts mechanical energy into electrical energy.

• Fuel is burned to create mechanical energy

• Mechanical energy turns a rotor inside the generator

• The rotor creates a magnetic field

• The magnetic field induces an electrical current in the stator

• The electrical current is sent to a transformer to increase voltage

• The high voltage electricity is sent to the power grid or used locally

Electrical machines are devices that convert electrical energy into mechanical energy or vice versa.

• Types include electric motors, generators, transformers, and alternators

• Electric motors convert electrical energy into mechanical energy to perform work

• Generators convert mechanical energy into electrical energy

• Transformers transfer electrical energy between circuits

• Alternators convert mechanical energy into alternating current electrical energy

Six Sigma is a data-driven methodology used to improve business processes by reducing defects and variability.

• Six Sigma aims to achieve a level of quality where the probability of defects is extremely low.

• It uses statistical analysis to identify and eliminate sources of variation in a process.

• The methodology follows a structured approach called DMAIC (Define, Measure, Analyze, Improve, Control).

• Six Sigma is widely used in industries such as manufacturing, healthcare, and fina...read more

Power system working involves generation, transmission, distribution, and utilization of electrical energy.

• Power generation from sources like coal, hydro, nuclear, solar, wind, etc.

• Transmission of power through high voltage lines to substations.

• Distribution of power to homes and businesses through transformers and distribution lines.

• Utilization of power by various electrical devices and appliances.

• Monitoring and control of the power system to ensure reliability and efficiency...read more

A generator is a device that converts mechanical energy into electrical energy.

• Generators are commonly used in power plants to generate electricity for homes and businesses.

• They can also be used as backup power sources during power outages.

• Generators come in various sizes and types, such as portable generators for camping or large industrial generators for factories.

As a Product Manager, I am responsible for scaling products and defining work descriptions, typically located in the company's headquarters or main office.

• Define product roadmap and strategy for scaling

• Collaborate with cross-functional teams to execute product initiatives

• Create detailed work descriptions for development teams

• Ensure alignment with company goals and objectives

• Location may vary depending on company headquarters or main office