Propel Industries Engineer Trainee Interview Questions, Process, and Tips

Basic level aptitude

Q1. Density of water
Ans. 
Density of water is 1 g/cm³ at 4 degrees Celsius.
• Density of water is 1 g/cm³ at 4 degrees Celsius.

• Density of water varies with temperature and pressure.

• Water is most dense at 4 degrees Celsius.

• Density of water is lower in its solid form (ice) compared to its liquid form.
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Q2. Unit convertion and engineering questions domain related
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Basic aptitude maths science and engineering

Q1. Stress and strain and factors of safety, vehicle dynamics
Ans. 
Stress and strain are key concepts in engineering, along with factors of safety and vehicle dynamics.
• Stress is the force applied to a material, while strain is the resulting deformation.

• Factors of safety are used to account for uncertainties in design and ensure the structure can handle unexpected loads.

• Vehicle dynamics involve the study of how vehicles move and respond to external forces, such as acceleration, braking...read more
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Q2. Principles of vehicles
Ans. 
Principles of vehicles involve understanding the mechanics, design, and operation of various types of vehicles.
• Understanding the basics of aerodynamics and how it affects vehicle performance

• Knowledge of different types of engines and their functions

• Understanding the principles of suspension and steering systems

• Awareness of safety regulations and standards in vehicle design and operation
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Q3. Electric power transmission principle
Ans. 
Electric power transmission principle involves the movement of electricity from power plants to consumers through a network of transmission lines.
• Electricity is generated at power plants using various sources such as coal, natural gas, nuclear, or renewable sources like wind or solar.

• The electricity is then transmitted at high voltages to reduce energy losses over long distances.

• Transformers are used to step up the vol...read more
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Q4. Motor working and battery working
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Q5. Design for manufacturing and design for assembly
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Design for manufacturing focuses on optimizing the manufacturing process, while design for assembly focuses on simplifying the assembly process.
• Design for manufacturing involves considering materials, processes, and tools to streamline production

• Design for assembly involves designing parts for easy assembly and minimizing the number of components

• Examples include using standardized components, reducing the number of fas...read more
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