Aptiv Graduate Trainee Interview Questions and Answers

Basic questions of technical and basic subjects questions

Q1. Heat treatment , foundry question
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1st section: numerical aptitude
2nd section: core questions
3rd section: situation reaction questions

30 min group discussion with 2 topics
1st topic: agneepath scheme
2nd scheme: influence of indian cinemas in the crimerates

Q1. Both hr and technical wwere combined
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Q2. . different forces acting on a moving cycle and force analysis . newtonian and non newtonian fluids .why tyres are made of rubber and not steel
Ans. 
Forces acting on a moving cycle, Newtonian vs non-Newtonian fluids, and why tires are made of rubber.
• Forces on a moving cycle include friction, air resistance, and gravity.

• Newtonian fluids have constant viscosity, while non-Newtonian fluids change viscosity with stress.

• Tires are made of rubber for flexibility, grip, and shock absorption.

• Rubber tires provide better traction and a smoother ride compared to steel tires.
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Q3. Howadiabatic and constant volume processes are achieved in practical
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Adiabatic and constant volume processes are achieved in practical by controlling heat transfer and volume change respectively.
• Adiabatic process is achieved by insulating the system to prevent heat transfer with the surroundings.

• Constant volume process is achieved by using a closed container where the volume remains constant during the process.

• Examples include adiabatic compression in a gas turbine engine and constant v
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Q4. Why priming is neede in the pumps
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Priming is needed in pumps to remove air and create a vacuum, ensuring proper functioning and preventing damage.
• Priming removes air from the pump, allowing it to create a vacuum and start pumping efficiently.

• It helps prevent cavitation, which can damage the pump by causing vibrations and erosion.

• Priming is essential for self-priming pumps to start pumping without manual intervention.

• Examples of priming methods include ...read more
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Q5. What is NPSH of pumps
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NPSH stands for Net Positive Suction Head, it is a measure of the pressure available at the suction port of a pump.
• NPSH is important for determining if a pump will operate properly without cavitation.

• It is calculated by subtracting the vapor pressure of the liquid being pumped from the total suction head of the pump.

• NPSH is typically provided by the pump manufacturer and must be considered when selecting a pump for a s
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Q1. Defects in plastic parts
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Defects in plastic parts can be caused by various factors such as design flaws, material impurities, and manufacturing errors.
• Common defects include warping, sink marks, flash, and short shots.

• Design flaws can lead to weak spots or improper fitment.

• Material impurities can cause discoloration, bubbles, or poor surface finish.

• Manufacturing errors like improper cooling or injection pressure can result in defects.

• Quality c...read more
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Q2. What is undercut
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Undercut is a hairstyle where the hair on the top of the head is longer than the sides and back.
• Undercut involves shaving or cutting the sides and back of the head short while leaving the top longer

• Popular among both men and women

• Can be styled in various ways such as slicked back, pompadour, or messy

• Celebrities like Brad Pitt and Miley Cyrus have been seen sporting undercuts
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Aptitude test comprises of both technical, basic programming and general aptitude questionS

Q1. They asked me the concept like SOM, machine design and designing software
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Q2. Tell me about how to design gear
Ans. 
Designing gears involves determining the gear type, size, material, and tooth profile to meet the required specifications.
• Identify the gear type based on the application requirements

• Determine the gear size based on the power transmission and space constraints

• Select the appropriate material based on the load and environmental conditions

• Design the tooth profile based on the gear type and operating conditions

• Perform stres...read more
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Q1. Volcanisation process ,use of silica ,mixing stages.
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Q2. What is elasticity and it's use in rubber
Ans. 
Elasticity is the ability of a material to return to its original shape after being stretched or compressed. It is important in rubber for its ability to absorb shock and provide flexibility.
• Rubber is a highly elastic material due to its long polymer chains that can stretch and return to their original shape.

• Elasticity in rubber is important for its use in tires, where it allows the tire to absorb shock and maintain co...read more
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Thre is third party role as MHR contract

Q1. What is Engineering System
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Q2. Define 5s Culture in Automobile
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