Bajaj Motors Diploma Engineer Trainee - DET Interview Questions and Answers for Experienced

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 i...read more

5S is a methodology used to organize and maintain a clean, efficient, and safe work environment.

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

• Sort involves removing unnecessary items from the workplace.

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

• Shine involves cleaning and maintaining the workplace.

• Standardize establishes consistent processes and procedures.

• Su...read more

Pokayoke is a Japanese term for mistake-proofing or error-proofing.

• It is a quality control technique used to prevent errors or defects in a product or process.

• It involves designing a process or product in a way that makes it impossible or difficult to make mistakes.

• Examples include using color-coding, checklists, and sensors to prevent errors.

• Pokayoke helps improve product quality, reduce waste, and increase efficiency

Kaizen is a Japanese term for continuous improvement.

• Kaizen involves making small, incremental changes to improve processes and systems.

• It is a philosophy that emphasizes the importance of ongoing improvement in all aspects of an organization.

• Kaizen can be applied to any area of an organization, from manufacturing to customer service.

• Examples of kaizen include implementing a new process to reduce waste, improving commu...read more

The 5 engine part names are piston, cylinder, crankshaft, camshaft, and valve.

• Piston: Moves up and down inside the cylinder to compress the fuel-air mixture.

• Cylinder: Houses the piston and allows for the combustion process.

• Crankshaft: Converts the linear motion of the piston into rotational motion.

• Camshaft: Controls the opening and closing of the engine's valves.

• Valve: Regulates the flow of fuel-air mixture and exhaust

1st and 3rd angle methods are used in engineering drawings to represent the orientation of an object in 3D space.

• 1st angle method is commonly used in Europe and Asia, while 3rd angle method is used in North America.

• In 1st angle method, the object is placed in the first quadrant of the viewing plane, while in 3rd angle method, it is placed in the third quadrant.

• The symbol for 1st angle projection is a square with a dot ...read more

Moulding is a manufacturing process of shaping liquid or pliable raw material using a rigid frame called a mold.

• Types of moulding: injection moulding, blow moulding, compression moulding, rotational moulding, etc.

• Forging is a manufacturing process of shaping metal using compressive forces.

• LPDC stands for Low Pressure Die Casting, a casting process for producing metal parts.

• Materials used for moulding: plastic, rubber,

There are three types of heat transfer: conduction, convection, and radiation.

• Conduction is the transfer of heat through direct contact between solids.

• Convection is the transfer of heat through the movement of fluids (liquids or gases).

• Radiation is the transfer of heat through electromagnetic waves.

• Examples: Conduction - touching a hot stove; Convection - boiling water; Radiation - feeling the warmth of the sun.

A boiler is a closed vessel used to generate steam or hot water for heating purposes. There are various types of boilers.

• Boilers are used in industries, power plants, and residential buildings.

• Types of boilers include fire-tube, water-tube, electric, and biomass boilers.

• Boilers can be fueled by coal, oil, gas, or renewable energy sources.

• Boilers require regular maintenance to ensure safety and efficiency.

• Boiler efficie...read more

Vernier caliper and micrometer are both precision measuring instruments, but they differ in their design and measurement range.

• Vernier caliper measures both internal and external dimensions with a range of 0-150mm or 0-6 inches.

• Micrometer measures thickness or outside dimensions with a range of 0-25mm or 0-1 inch.

• Vernier caliper uses a sliding scale and a vernier scale for measurement, while micrometer uses a screw mec...read more

PPM stands for parts per million. It is a unit of measurement used to express the concentration of a substance in a solution.

• PPM is calculated by dividing the number of parts of a substance by the total number of parts in the solution and multiplying by one million.

• Formula: PPM = (Number of parts of substance / Total number of parts in solution) * 1,000,000

• For example, if there are 10 parts of a substance in a solution...read more

The seven QC tools are a set of quality control tools used to identify and solve quality-related issues in manufacturing processes.

• The seven QC tools are: check sheets, histograms, Pareto charts, cause-and-effect diagrams, control charts, scatter diagrams, and flowcharts.

• Check sheets are used to collect data and record occurrences of specific events or defects.

• Histograms are graphical representations of data distributi...read more

Poka yoke is a Japanese term for mistake-proofing or error-proofing.

• It is a technique used to prevent errors from occurring during a process.

• It involves designing a process or product in a way that makes it impossible or difficult to make mistakes.

• Examples include using color coding, shapes, or sensors to prevent errors.

• Poka yoke can improve quality, reduce costs, and increase efficiency.

CAPA stands for Corrective and Preventive Action. It is a process used to identify, investigate, and resolve quality issues.

• CAPA is a quality management system tool used to address and prevent problems

• It involves identifying the root cause of a problem and implementing corrective and preventive actions

• CAPA is an ongoing process that requires continuous monitoring and improvement

• Examples of CAPA include implementing new...read more

Scrap refers to any material or product that is deemed unusable or defective.

• Scrap can be generated during manufacturing processes when a product does not meet quality standards.

• It can also refer to excess or leftover materials that cannot be used in production.

• Scrap can be recycled or sold for its raw materials.

• Examples of scrap include defective parts, excess packaging materials, and leftover metal shavings.