40+ DET Interview Questions and Answers

The interview covered topics such as differences between petrol and diesel engines, laws of thermodynamics, types of fluids, and DC motor working.

• Petrol engines use spark plugs to ignite fuel, while diesel engines use compression to ignite fuel

• The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted

• Fluids can be classified as liquids, gases, or plasmas

• My hobbies include reading, hiking, and playing guitar

• DC motors conver...read more

Major cost savings were achieved through process optimization and automation.

• Implemented automation of manual processes resulting in reduced labor costs

• Optimized supply chain management resulting in reduced inventory costs

• Negotiated better vendor contracts resulting in reduced procurement costs

IC engine is an internal combustion engine that generates power by burning fuel inside the engine. 2 stroke engine completes a power cycle in 2 strokes of the piston, while 4 stroke engine completes it in 4 strokes.

• IC engine is an internal combustion engine that generates power by burning fuel inside the engine.

• 2 stroke engine completes a power cycle in 2 strokes of the piston, while 4 stroke engine completes it in 4 strokes.

• In a 2 stroke engine, the intake, compression, powe...read more

The time required to employ the parment depends on various factors such as the recruitment process, availability of candidates, and the complexity of the position.

• The duration can vary greatly depending on the organization's hiring process and the specific requirements of the role.

• Factors such as the number of interviews, background checks, and reference checks can impact the timeline.

• If the position requires specialized skills or qualifications, it may take longer to find a ...read more

Stress is the force applied to a material, while strain is the resulting deformation. They are measured in units of force per unit area and are important in engineering and materials science.

• Stress is the force applied to a material per unit area

• Strain is the resulting deformation or change in shape of the material

• Stress is typically measured in units like Pascals (Pa) or pounds per square inch (psi)

• Strain is a dimensionless quantity, often expressed as a percentage

• Standards ...read more

Air is measured in units of pressure, volume, and density.

• Pressure is measured in units such as pascals (Pa), pounds per square inch (psi), or atmospheres (atm).

• Volume is measured in units such as cubic meters (m³), liters (L), or cubic feet (ft³).

• Density is measured in units such as kilograms per cubic meter (kg/m³) or pounds per cubic foot (lb/ft³).

Analog and digital are two different methods of representing and processing information.

• Analog signals are continuous and can take any value within a range, while digital signals are discrete and can only take specific values.

• Analog devices measure and represent data using physical quantities, such as voltage or current, while digital devices use binary code (0s and 1s).

• Analog signals are more susceptible to noise and distortion, while digital signals can be easily transmitte...read more

Two-stroke and four-stroke engines differ in their operation and design.

• Two-stroke engines complete a power cycle in two strokes of the piston, while four-stroke engines complete it in four strokes.

• Two-stroke engines have a simpler design and are lighter, but they are less fuel-efficient and produce more pollution.

• Four-stroke engines are more complex but offer better fuel efficiency and lower emissions.

• Examples of two-stroke engines include chainsaws and motorcycles, while ca...read more

Preventive maintenance involves regular inspections, adjustments, cleaning, and replacement of parts to prevent breakdowns and prolong equipment life.

• Regularly inspecting equipment for signs of wear and tear

• Performing routine cleaning and lubrication

• Replacing worn out parts before they fail

• Scheduling regular maintenance checks based on manufacturer recommendations

• Keeping detailed records of maintenance activities

• Implementing predictive maintenance techniques to anticipate iss...read more

Torrent Power is an Indian power company that generates and distributes electricity.

• Torrent Power is one of the leading power companies in India.

• It generates and distributes electricity in various states of India.

• The company has a strong presence in Gujarat, Maharashtra, and Uttar Pradesh.

• Torrent Power has a total generation capacity of 3,879 MW.

• It has won several awards for its performance and contribution to the power sector.

The weak point refers to a vulnerable or susceptible area or aspect.

• A weak point can be a physical or mental limitation.

• It can also refer to a flaw or vulnerability in a system or process.

• Examples of weak points include a person's lack of confidence, a software bug, or a weak link in a chain.

• Identifying and addressing weak points is important for improvement and problem-solving.

Transfarma is not a known term. No answer available.

• N/A

5c of engine refers to the five components that make up an engine's combustion process.

• The five components are compression, combustion, cooling, control, and lubrication.

• Compression refers to the process of compressing the air-fuel mixture before ignition.

• Combustion is the process of burning the compressed air-fuel mixture to produce energy.

• Cooling is necessary to prevent the engine from overheating during the combustion process.

• Control refers to the various sensors and syste...read more

Mortar is a mixture of cement, sand, and water used to bind building blocks. There are different types of mortar based on their composition and application.

• Types of mortar include cement mortar, lime mortar, and gypsum mortar

• Cement mortar is commonly used for construction and is made of cement, sand, and water

• Lime mortar is used for historic preservation and is made of lime, sand, and water

• Gypsum mortar is used for plastering and is made of gypsum, sand, and water

A lathe is a machine tool used for shaping and machining various materials.

• A lathe rotates a workpiece on its axis, allowing for cutting, drilling, sanding, and turning operations.

• It consists of a bed, headstock, tailstock, and a tool post.

• Common types of lathes include engine lathes, turret lathes, and CNC lathes.

• Lathes are used in metalworking, woodworking, and glassworking industries.

• Examples of lathe operations include turning a cylindrical shape, creating threads, and fa...read more

Quality is a measure of excellence or superiority in a product, service, or process.

• Quality refers to the degree to which something meets or exceeds expectations.

• It involves characteristics such as reliability, durability, accuracy, and effectiveness.

• Quality can be subjective and vary based on individual preferences and requirements.

• Examples of quality include a well-built car that doesn't break down frequently, a delicious and consistent tasting food product, or a software t...read more

A VMC machine typically has 3 axis - X, Y, and Z.

• Most VMC machines have 3 axis - X, Y, and Z for movement in three dimensions

• Some advanced VMC machines may have additional axis for more complex operations

• The number of axis in a VMC machine can vary based on the specific model and manufacturer

IC engine is an internal combustion engine that converts chemical energy into mechanical energy.

• IC engine is classified based on the fuel used such as petrol engine, diesel engine, gas engine, etc.

• It is also classified based on the number of strokes in a cycle such as two-stroke engine and four-stroke engine.

• IC engines are further classified based on the arrangement of cylinders such as inline engine, V engine, flat engine, etc.

• Examples of IC engines include car engines, moto...read more

A braking system is a mechanism that slows or stops the motion of a vehicle or machine.

• Braking systems convert kinetic energy into heat energy to slow or stop a vehicle or machine.

• There are several types of braking systems, including disc brakes, drum brakes, and regenerative brakes.

• Disc brakes use calipers to squeeze brake pads against a rotor, while drum brakes use shoes that press against a rotating drum.

• Regenerative brakes use the vehicle's momentum to generate electricit...read more

5s,3r,4m is a code used in lean manufacturing for workplace organization and efficiency.

• 5s stands for Sort, Set in Order, Shine, Standardize, and Sustain

• 3r stands for Remove, Replace, and Repair

• 4m stands for Man, Machine, Material, and Method

• These codes are used to improve productivity, safety, and quality in the workplace

GD&T symbol stands for Geometric Dimensioning and Tolerancing symbol.

• GD&T symbols are used to specify the geometric requirements of a part or assembly.

• They include symbols for features such as flatness, perpendicularity, and concentricity.

• GD&T symbols help ensure that parts are manufactured to the correct specifications and fit together properly.

• Examples of GD&T symbols include the concentricity symbol (a circle within a circle) and the perpendicularity symbol (a square with ...read more

Quality refers to the standard or degree of excellence of something.

• Quality is a measure of how well something meets its intended purpose or specifications.

• There are different types of quality, such as product quality, service quality, and process quality.

• Product quality refers to the characteristics and features of a product that determine its ability to satisfy customer needs.

• Service quality refers to the level of customer service provided by a company or organization.

• Proce...read more

Automobiles are classified based on their body type, size, and purpose.

• Classification is based on body type such as sedan, SUV, hatchback, etc.

• Size can be compact, mid-size, or full-size.

• Purpose can be personal, commercial, or off-road.

• Other classifications include electric, hybrid, and fuel type.

• Examples: Sedan (personal), Pickup truck (commercial), SUV (off-road)

Measuring instruments must be accurate to ensure reliable results.

• Calibration is essential to ensure accuracy

• Regular maintenance and inspection can prevent errors

• Different instruments have different levels of accuracy

• Human error can also affect accuracy

• Examples: thermometer, blood pressure monitor, scale

Common types of motors used in industrial applications include AC motors, DC motors, and servo motors.

• AC motors are commonly used for high-power applications and are cost-effective.

• DC motors are often used for variable speed applications and precise control.

• Servo motors are used for applications requiring high precision and accuracy, such as robotics and CNC machines.

Torque is a measure of the twisting force applied to an object.

• Torque is the product of force and the perpendicular distance from the axis of rotation.

• It causes objects to rotate around an axis.

• Torque is measured in units of force multiplied by distance, such as Newton-meters or foot-pounds.

• Examples of torque include turning a doorknob, tightening a bolt with a wrench, or pedaling a bicycle.

Relay is an electrically operated switch, while a diode is a semiconductor device that allows current to flow in one direction only.

• Relay is used to control high power circuits with a low power signal

• Diodes are commonly used in rectifiers to convert AC to DC

• Relays are often used in automotive applications to control lights, fans, and motors

7QC stands for Seven Quality Control Tools, a set of techniques used for process improvement and problem-solving.

• The 7QC include: Pareto chart, cause-and-effect diagram, check sheet, control chart, histogram, scatter diagram, and flowchart.

• These tools help identify and analyze problems, determine root causes, and develop solutions.

• For example, a Pareto chart can be used to identify the most common causes of defects, while a control chart can monitor a process to ensure it sta...read more

Torque is a measure of the twisting force that causes rotation.

• Torque is a vector quantity that is calculated as the product of force and the distance from the axis of rotation.

• It is measured in units of Newton-meters (Nm) or pound-feet (lb-ft).

• Torque is important in many fields, including engineering, physics, and mechanics.

• Examples of torque include the force applied to a wrench to tighten a bolt, or the force applied to a car's wheels to make it move forward.

• Torque can be ...read more

Shot blasting is a surface treatment process used to clean, strengthen, or polish metal surfaces.

• Involves propelling abrasive materials at high speeds onto the surface being treated

• Removes rust, scale, and other contaminants from metal surfaces

• Used in industries like automotive, aerospace, and construction

• Examples include cleaning old paint off metal surfaces before repainting

Yes, I have driving licenses.

• I have a valid driving license for both cars and motorcycles.

• I obtained my driving licenses in 2010 and have been driving since then.

• I have a clean driving record with no accidents or violations.

5s concept is a workplace organization method focusing on efficiency and cleanliness.

• Sort - separate needed items from unneeded items

• Set in order - organize items in a logical manner

• Shine - clean and inspect work area regularly

• Standardize - establish consistent procedures and schedules

• Sustain - maintain and improve the system over time

3R stands for Reduce, Reuse, Recycle, which are the three key principles for sustainable waste management.

• Reduce: Minimize the amount of waste produced by using less resources.

• Reuse: Use items multiple times before discarding them.

• Recycle: Convert waste materials into new products to prevent waste of potentially useful materials.

5S is a methodology used for organizing a workplace for efficiency and effectiveness.

• 5S stands for Sort, Set in Order, Shine, Standardize, and Sustain.

• Sort involves removing unnecessary items from the workplace.

• Set in Order focuses on organizing items in a logical and efficient manner.

• Shine involves keeping the workplace clean and free of clutter.

• Standardize refers to creating and maintaining standards for organization and cleanliness.

• Sustain involves ensuring that the 5S pri...read more

Kaizen is a Japanese business philosophy of continuous improvement in processes and products.

• Kaizen focuses on making small, incremental changes to improve efficiency and quality.

• It involves all employees in the organization, from top management to frontline workers.

• Kaizen promotes a culture of continuous learning and innovation.

• Examples of kaizen include implementing a new workflow to reduce waste, standardizing processes to improve consistency, and conducting regular team m...read more

Poke Woka is a Hawaiian dish consisting of diced raw fish served with various toppings and sauces.

• Poke Woka is a popular dish in Hawaiian cuisine.

• It typically consists of diced raw fish, such as tuna or salmon.

• The fish is usually marinated in a sauce, such as soy sauce or sesame oil.

• Poke Woka is often served with toppings like avocado, seaweed, and sesame seeds.

• It can be eaten as an appetizer or a main dish.

The final decision after joining depends on various factors.

• The employee's performance and attitude

• The company's financial situation

• The employee's fit with the company culture

• The availability of opportunities for growth and advancement

• The employee's willingness to learn and adapt

• The company's overall goals and objectives

I have a Bachelor's degree in Computer Science and Engineering.

• Bachelor's degree in Computer Science and Engineering

• Strong foundation in programming languages such as Java, Python, and C++

• Experience in software development and project management

• Familiarity with database management systems and web development frameworks

There are various types of steel used in different applications.

• Carbon steel: contains carbon as the main alloying element

• Stainless steel: contains chromium for corrosion resistance

• Tool steel: used for making tools and dies

• Alloy steel: contains additional alloying elements for specific properties

• High-speed steel: used for cutting tools at high speeds

There are several types of welding techniques used in various industries.

• Arc welding: Uses an electric arc to create heat and join metals.

• MIG welding: Uses a wire electrode and a shielding gas to create a weld.

• TIG welding: Uses a tungsten electrode and a shielding gas to create a precise and high-quality weld.

• Spot welding: Joins two or more metal sheets by applying pressure and heat at specific points.

• Flux-cored arc welding: Similar to MIG welding but uses a tubular wire fill...read more

CNC stands for Computer Numerical Control and VCM stands for Virtual Cutting Machine.

• CNC is a technology that uses computers to control machine tools like lathes, mills, routers, and grinders.

• VCM is a software simulation of a cutting machine that allows users to test and optimize cutting processes before actual production.

• CNC machines are widely used in manufacturing for precision and automation, while VCM is used for virtual prototyping and process optimization.

Quality in process refers to the level of excellence and consistency achieved in the execution of tasks and activities.

• Quality in process involves following established procedures and standards to ensure that tasks are performed correctly and consistently.

• It includes monitoring and measuring the performance of processes to identify areas for improvement.

• Quality in process also involves implementing corrective actions to address any deviations or non-conformities.

• Examples of q...read more

Safety in process is crucial for preventing accidents and ensuring the well-being of individuals involved.

• Implementing safety protocols and procedures

• Providing proper training and education on safety measures

• Regular inspections and maintenance of equipment

• Promoting a safety culture within the organization

• Encouraging reporting of near misses and incidents

• Continuous improvement and learning from past incidents