Daimler India Commercial Vehicles Diploma Trainee Engineer Interview Questions and Answers

Q1. What is stress or strain
Ans. 
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 te...read more
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Q2. What is mean by mechanical engineer
Ans. 
A mechanical engineer is a professional who designs, develops, and tests mechanical systems and devices.
• Designing and analyzing mechanical systems

• Developing prototypes and testing them for functionality

• Collaborating with other engineers and professionals to ensure project success

• Applying principles of physics and materials science to solve engineering problems
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Q3. What is heating process
Ans. 
Heating process is the method of increasing the temperature of a substance using external energy sources.
• Heating process involves transferring energy to a material to raise its temperature.

• Common methods of heating include conduction, convection, and radiation.

• Examples include heating water on a stove, using a microwave to heat food, and using a furnace to heat a room.
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Q4. What is the difference between drawing and drafting
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Drawing is a freehand representation of an object, while drafting involves using tools and instruments to create precise technical drawings.
• Drawing is typically done by hand, using pencils, pens, or other artistic tools.

• Drafting involves using tools like T-squares, triangles, and drafting machines to create accurate technical drawings.

• Drawings are often more artistic and expressive, while drafts are more technical and ...read more
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Q5. What is design in mechanical
Ans. 
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...read more
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Q1. Foundry shop related questions
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Q1. Job responsibilities
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Q2. Job description
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Q1. What does it mean by Automobile?
Ans. 
Automobile refers to a vehicle designed for transportation, typically powered by an internal combustion engine.
• Automobiles are commonly used for personal transportation, as well as for commercial purposes.

• They come in various types such as cars, trucks, buses, and motorcycles.

• Automobiles have revolutionized transportation and have greatly impacted society and economy.

• Examples of automobile manufacturers include Ford, T
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Q2. State the subjects name of your final semester
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Q1. What is the difference between Diesel and petrol engine
Ans. 
Diesel engines use compression ignition while petrol engines use spark ignition.
• Diesel engines compress air to ignite fuel, while petrol engines use spark plugs

• Diesel engines are more fuel efficient but produce more emissions

• Petrol engines are quieter and smoother than diesel engines

• Diesel engines are commonly used in trucks and heavy machinery, while petrol engines are used in cars and motorcycles
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Q2. Least count of Vernier caliper and micrometre
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The least count of a Vernier caliper is 0.02 mm and the least count of a micrometer is 0.01 mm.
• Vernier caliper has a least count of 0.02 mm, which means it can measure up to 0.02 mm accuracy.

• Micrometer has a least count of 0.01 mm, allowing for measurements with 0.01 mm precision.
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Q3. Calculate the value 9.23-3.45
Ans. 
Subtracting 3.45 from 9.23 gives the result of 5.78.
• Subtract the second number from the first number

• 9.23 - 3.45 = 5.78
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Q4. Basic computer related questions
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Q1. 1.What types of material using in engine. 2. How many millimetre in 1 kilometre.
Ans. 
The types of materials used in engines vary depending on the specific engine type and its components.
• Engines can be made of various materials such as cast iron, aluminum, steel, and alloys.

• Different engine parts may require different materials, for example, pistons are often made of aluminum alloy.

• Engine components like cylinder heads, crankshafts, and connecting rods can be made of cast iron or steel.

• Some engines may ...read more
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Q1. 1. family background . 2. Educational questions.
Ans. 1. Tell my family background. 2. Many questions I answer in my study oriental.
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