100+ Interview Questions and Answers

Mismatches in calculations are identified by comparing the expected result with the actual result.

• Mismatch is calculated by subtracting the expected result from the actual result.

• Discrepancies can also be identified by comparing data sets or measurements.

• In quality management, mismatches can indicate errors in processes or systems.

• For example, if a product is expected to weigh 100 grams but actually weighs 110 grams, there is a mismatch.

Stress is the force applied to a material, while strain is the resulting deformation or change in shape.

• Stress is a measure of the internal forces within a material, typically caused by external loads.

• Strain is the measure of how much a material deforms or changes shape in response to stress.

• Stress is usually expressed in units of force per unit area (such as N/m^2 or Pa), while strain is dimensionless.

• Stress can be tensile (stretching) or compressive (squeezing), leading to ...read more

Design in mechanical engineering involves creating and developing products, machines, systems, or structures to meet specific requirements.

• Designing involves conceptualizing, planning, and creating blueprints for mechanical components or systems.

• Considerations include functionality, efficiency, safety, cost, and aesthetics.

• Designers use software like CAD (Computer-Aided Design) to create detailed models and simulations.

• Prototyping and testing are essential steps in the design...read more

My special quality is my ability to adapt quickly to new situations and learn new skills efficiently.

• Quick learner

• Adaptable to new environments

• Efficient at acquiring new skills

Handling a customer requires active listening, empathy, and problem-solving skills.

• Listen actively to the customer's concerns

• Show empathy and understanding towards their situation

• Offer solutions or alternatives to resolve their issue

• Remain calm and professional, even in difficult situations

• Follow up with the customer to ensure their satisfaction

Electrical deals with electricity and power generation, while electronics deals with electronic circuits and devices.

• Electrical engineering focuses on power generation, transmission, and distribution.

• Electronics engineering deals with electronic circuits, components, and devices.

• Electrical engineers work on large-scale power systems like generators and transformers.

• Electronics engineers work on small-scale devices like smartphones and computers.

Marketing is the process of promoting and selling products or services to customers.

• Marketing involves identifying customer needs and wants.

• It includes creating and delivering value to customers.

• Marketing strategies can include advertising, public relations, and social media.

• Market research helps in understanding customer preferences and competition.

• Marketing aims to attract, retain, and satisfy customers.

• Examples of marketing campaigns include Coca-Cola's 'Share a Coke' and ...read more

Vehicle integration refers to the process of combining various components and systems in a vehicle to ensure their proper functioning and interaction.

• Vehicle integration involves the integration of mechanical, electrical, and electronic systems in a vehicle.

• It includes the integration of components such as the engine, transmission, suspension, braking system, and electrical systems.

• The goal of vehicle integration is to ensure that all the components work together seamlessly t...read more

CISC (Complex Instruction Set Computing) and RISC (Reduced Instruction Set Computing) are two different types of computer architectures.

• CISC processors have a large set of complex instructions, while RISC processors have a smaller set of simpler instructions.

• CISC processors typically have more addressing modes and can perform more complex operations in a single instruction.

• RISC processors focus on executing a few basic instructions very quickly, often requiring multiple instr...read more

AEN stands for Assistant Engineer

• AEN stands for Assistant Engineer

• AEN is a common abbreviation used in engineering and technical fields

• Example: AEN John Smith is the Assistant Engineer responsible for the project

Bajaj Auto is known for its high-quality motorcycles and three-wheelers.

• Known for producing reliable and durable motorcycles

• Offers a wide range of models to cater to different customer needs

• Has a strong presence in the Indian market and expanding globally

• Innovative designs and features in their products

• Well-established brand with a reputation for quality and performance

Clean up catalyst is a substance used to remove impurities from a chemical process or reaction.

• Clean up catalysts are used in various industries such as petrochemical, pharmaceutical, and environmental.

• They help to improve the efficiency and purity of the final product by removing unwanted substances.

• Examples include zeolites, activated carbon, and metal oxides like titanium dioxide.

• Clean up catalysts can be used in processes like catalytic converters in cars to reduce emissi...read more

Plan, table view, and DDL method are related to database management.

• Plan: Shows the execution plan of a SQL query, including the steps taken by the database to retrieve data.

• Table view: Displays the structure and data of a table in a database.

• DDL method: Stands for Data Definition Language, used to define and modify the structure of database objects.

Maintenance refers to the process of keeping something in good condition by checking, repairing, and replacing parts as needed.

• Maintenance involves regular inspections and preventative measures to avoid breakdowns or failures.

• It includes repairing or replacing damaged or worn-out parts.

• Maintenance can be scheduled or unscheduled, depending on the type of equipment or system being maintained.

• Examples of maintenance include oil changes for cars, cleaning and servicing HVAC syst...read more

Calibration is the process of adjusting or verifying the accuracy of an instrument or tool.

• Calibration ensures that an instrument or tool is accurate and reliable.

• It involves comparing the readings of the instrument to a known standard.

• Calibration is important in industries such as manufacturing, engineering, and science.

• Examples of instruments that require calibration include thermometers, scales, and pressure gauges.

Hobbies are activities that a person enjoys doing in their free time.

• Hobbies can be anything from reading to playing sports to crafting.

• They are a way for people to relax and unwind.

• Hobbies can also be a way for people to learn new skills or explore new interests.

• Some popular hobbies include painting, hiking, cooking, and playing music.

The symbol of Mosfets is a combination of a rectangle and a triangle.

• The rectangle represents the body of the transistor

• The triangle represents the source and drain terminals

• The arrowhead on the triangle indicates the direction of current flow

Force is a physical quantity that can change the motion of an object.

• Force is measured in Newtons (N)

• It can be a push or a pull

• Force can change the shape or size of an object

• Examples of force include gravity, friction, and tension

To work an electric vehicle, you need to understand how to charge the battery, operate the controls, and maintain the vehicle.

• Learn how to charge the battery using a charging station or home charger.

• Understand how to operate the controls such as the accelerator, brake, and gear selector.

• Regularly maintain the vehicle by checking the tire pressure, fluid levels, and overall condition.

The upcoming Bajaj EV programme is called the 'Urbanite'.

• The Urbanite programme focuses on electric vehicles for urban mobility.

• Bajaj has already launched the Chetak electric scooter under the Urbanite brand.

• The Urbanite range is expected to expand with more electric vehicle offerings in the future.

The PDCA cycle is a four-step management method used for continuous improvement in processes and products.

• Plan: Identify and plan for improvement

• Do: Implement the plan on a small scale

• Check: Measure the results and analyze data

• Act: Take action based on the results to improve further

• Example: A company uses the PDCA cycle to improve their production process by identifying bottlenecks, implementing changes, measuring the impact, and making further adjustments.

Cycle wheels don't buckle due to the design of the spokes and rim providing strength and support.

• Spokes are tensioned to distribute weight and forces evenly across the wheel

• Rim is designed to withstand impact and distribute stress

• Proper maintenance and alignment of spokes prevent buckling

I am a highly motivated and experienced manager with a proven track record of success in leading teams and achieving business objectives.

• I have over 10 years of experience in management roles

• I excel at building and motivating high-performing teams

• I am skilled in strategic planning and execution

• I have a strong focus on customer satisfaction and delivering results

• I am constantly seeking opportunities for professional development and growth

Battery 🔋 in EV vehicles are essential for powering the electric motor and providing range for the vehicle.

• Battery technology is crucial for the performance and range of EV vehicles

• Lithium-ion batteries are commonly used in EVs due to their high energy density

• Charging infrastructure and battery management systems are important for EV battery usage

• Battery degradation over time is a concern for EV owners and manufacturers

Pistons are typically made from aluminum alloy, cast iron, or steel.

• Aluminum alloy is lightweight and commonly used in high-performance engines.

• Cast iron is durable and often used in diesel engines.

• Steel pistons are strong and used in heavy-duty applications.

Torque formula is used to calculate the rotational force acting on an object.

• Torque = Force x Distance

• The SI unit of torque is Newton-meter (Nm)

• Torque is a vector quantity, having both magnitude and direction

• Example: If a force of 10 N is applied at a distance of 5 meters from the pivot point, the torque would be 50 Nm

My favorite subject is mathematics because I enjoy solving complex problems and using logic to find solutions.

• I enjoy working with numbers and equations

• I like the challenge of solving mathematical puzzles

• Mathematics is a universal language that can be applied to various fields

Capacitors store and release electrical energy, acting like temporary batteries in electronic circuits.

• Capacitors store energy in an electric field between two conductive plates

• They can release stored energy quickly for short bursts of power

• Capacitors are commonly used in filters, timing circuits, and energy storage applications

A synchronous motor is a type of AC motor where the rotation of the shaft is synchronized with the frequency of the supply current.

• Uses electromagnets to create a rotating magnetic field

• Requires a constant supply of AC power to maintain synchronization

• Commonly used in applications where precise speed control is required, such as in industrial machinery

• Examples include synchronous motors used in clocks, turntables, and industrial equipment

Kinematics is the branch of mechanics that studies the motion of objects without considering the forces causing the motion.

• Kinematics deals with the position, velocity, and acceleration of objects.

• It does not consider the forces that cause the motion.

• Examples include calculating the speed of a car or the trajectory of a projectile.

Brake power is the measure of an engine's power output, specifically the power available at the engine's crankshaft.

• Brake power is the power output of an engine measured at the crankshaft.

• It is the power available for doing work, such as moving a vehicle.

• Brake power is typically measured in horsepower or kilowatts.

• It is an important factor in determining the performance of an engine.

Quality is the measure of excellence or superiority of something, meeting or exceeding expectations.

• Quality is about meeting or exceeding customer expectations

• It involves consistency and reliability in products or services

• Quality is achieved through continuous improvement and adherence to standards

• Examples include high durability of a product, accuracy of information, and customer satisfaction

An automobile is a wheeled motor vehicle used for transportation.

• An automobile is a vehicle that is designed to transport people or goods.

• It is powered by an internal combustion engine or an electric motor.

• Automobiles typically have four wheels and are used on roads.

• They provide a convenient and efficient means of transportation.

• Examples of automobiles include cars, trucks, vans, and motorcycles.

A stress-strain curve shows the relationship between stress and strain in a material.

• The curve typically has three regions: elastic deformation, plastic deformation, and fracture.

• In the elastic region, the material returns to its original shape when the stress is removed.

• In the plastic region, the material undergoes permanent deformation.

• The fracture point is where the material breaks.

• The slope of the curve in the elastic region is the Young's modulus, a measure of the materi...read more

Pipelining is a technique in computer architecture where multiple instructions are overlapped in execution to improve performance.

• Pipelining allows for multiple stages of instruction execution to be overlapped, increasing throughput.

• Each stage of the pipeline performs a different operation on the instruction.

• Examples of pipelined processors include Intel's Pentium series and ARM processors.

• Hazards such as data hazards and control hazards can impact pipeline performance.

A four stroke engine is an internal combustion engine that completes four separate strokes in the combustion cycle: intake, compression, power, and exhaust.

• Intake stroke: Fuel and air are drawn into the combustion chamber.

• Compression stroke: The fuel-air mixture is compressed by the piston.

• Power stroke: The compressed mixture is ignited, causing the piston to move and generate power.

• Exhaust stroke: The spent gases are expelled from the combustion chamber.

Gear meshing is the process of two gears coming into contact and transferring motion or power between them.

• Gear teeth interlock and rotate together

• Proper gear meshing ensures smooth and efficient power transmission

• Incorrect gear meshing can lead to noise, vibration, and wear

• Common types of gear meshing include spur gears, helical gears, and bevel gears

During the Covid-19 pandemic, I developed several hobbies to keep myself engaged and productive.

• Started learning a new programming language (e.g., Python)

• Explored data analysis and visualization using tools like Pandas and Tableau

• Engaged in online coding competitions and challenges

• Built personal projects like a website or mobile app

• Learned to play a musical instrument (e.g., guitar)

• Started gardening and growing indoor plants

• Experimented with cooking and baking new recipes

• Took...read more

A 4 stroke engine works by completing four distinct processes: intake, compression, combustion, and exhaust.

• Intake stroke: Fuel and air are drawn into the cylinder.

• Compression stroke: The piston compresses the fuel and air mixture.

• Combustion stroke: The spark plug ignites the mixture, causing an explosion that pushes the piston down.

• Exhaust stroke: The piston pushes the exhaust gases out of the cylinder.

• This process repeats for each cylinder in the engine.

• Examples of 4 stroke...read more

My favorite subject is Mathematics.

• I enjoy solving complex problems and equations.

• I find satisfaction in finding the correct answer.

• Mathematics is a fundamental subject that is applicable in various fields such as engineering and finance.

Advanced Excel formula refers to complex functions and operations used to manipulate data in Excel.

• Use functions like VLOOKUP, INDEX, MATCH, SUMIF, COUNTIF for advanced data analysis

• Learn how to use array formulas to perform calculations on multiple cells at once

• Understand how to use conditional formatting to highlight important data

• Practice using pivot tables to summarize and analyze large datasets

Types of traction motors include DC series motor, DC shunt motor, AC induction motor, and AC synchronous motor.

• DC series motor: used in electric vehicles for high starting torque

• DC shunt motor: used in electric trains for constant speed operation

• AC induction motor: commonly used in modern electric vehicles for efficiency

• AC synchronous motor: used in high-speed trains for precise control

A drilling bit is a tool used for creating holes in materials such as wood, metal, or concrete.

• Drilling bits come in various sizes and shapes depending on the material being drilled

• Common types include twist bits, spade bits, and hole saws

• Drilling bits are attached to a drill or drilling machine for use

A stress-strain diagram shows the relationship between stress and strain in a material.

• It typically consists of a linear elastic region, a yield point, and a plastic deformation region.

• The slope of the linear region is the material's Young's Modulus.

• The yield point is where the material begins to deform plastically.

• The ultimate tensile strength is the maximum stress the material can withstand.

• The breaking point is where the material fractures.

• Examples: steel, aluminum, rubber

Iron carbide diagram is a graphical representation of the phases of iron and carbon at different temperatures and compositions.

• Also known as the Fe-C diagram, it shows the transformation of iron from ferrite to austenite to cementite as carbon content increases.

• The diagram is used to predict the microstructure and properties of steel based on its composition and heat treatment.

• The eutectoid point on the diagram represents the composition of steel that will transform completel...read more

SN curve is a graphical representation of fatigue data showing the relationship between stress and number of cycles to failure.

• SN curve helps in understanding the fatigue behavior of materials under cyclic loading.

• It shows the stress level at which a material will fail after a certain number of cycles.

• The curve typically consists of a high cycle fatigue region and a low cycle fatigue region.

• Example: Steel SN curve shows the stress levels at which it will fail after a certain ...read more