Hitachi Astemo Internship Trainee Interview Questions and Answers

Very much technical and verbal questions where asked

Situation related to a space ship crash

Q1. What is thermodynamics
Ans. 
Thermodynamics is the branch of physics that deals with the relationships between heat, work, and energy.
• It studies the transfer of energy in the form of heat and work.

• It involves concepts like temperature, pressure, and entropy.

• It is used in various fields such as engineering, chemistry, and meteorology.

• Examples include the study of heat engines, refrigeration systems, and phase transitions.
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Q1. Introduction , project, intership
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Q2. Some basic mechanical questions
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Q1. What is the combustion chamber ,?
Ans. 
The combustion chamber is where fuel and air are mixed and burned in an internal combustion engine.
• It is a part of an internal combustion engine where the fuel-air mixture is ignited and burned.

• The combustion chamber is designed to contain and control the combustion process.

• It is typically located within the cylinder head of an engine.

• The shape and design of the combustion chamber can affect engine performance and effi
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Q2. Explain the refrigerant system?.
Ans. 
Refrigerant system is a closed loop system that absorbs heat from a low-temperature area and releases it in a high-temperature area.
• Refrigerant circulates through the system to absorb and release heat

• Compressor increases the pressure of the refrigerant gas

• Condenser cools the refrigerant gas into a liquid

• Expansion valve reduces the pressure of the liquid refrigerant

• Evaporator absorbs heat from the surrounding area to co...read more
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General aptitude and technical questions from every engg field (mech,CS, Electrical,Electronics)
Need basic technical knowledge to crack

Group debate of 18-20 candidates with 9-10 in each team (in favour and against)

Topics related to Automobile industry or latest trends

18 candidates selected from 3 GDs

Q1. Family background
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Q2. Why Denso, what makes you eligible
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Q3. AC is an electrical appliance but sold in Electronics shop why so?
Ans. 
AC is sold in Electronics shops because it is an electrical appliance that utilizes electronic components for its operation.
• ACs use electronic components like capacitors, resistors, and microcontrollers for regulating temperature and controlling functions.

• Electronics shops specialize in selling a wide range of electronic devices, including appliances like ACs.

• ACs are considered as part of the electronics category due t...read more
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Q4. Any other recruitment filled ?
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Q1. How can you operate 4 different light bulbs under different trigger condition?
Ans. 
To operate 4 different light bulbs under different trigger conditions, use a combination of switches, timers, sensors, and programming.
• Use individual switches to control each light bulb independently.

• Set up timers to automatically turn on/off specific light bulbs at scheduled times.

• Utilize sensors such as motion sensors or light sensors to trigger certain light bulbs based on environmental conditions.

• Program a microcon...read more
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Q2. What is the process of cooling in AC
Ans. 
AC cooling process involves refrigerant absorbing heat from indoor air and releasing it outside.
• Refrigerant absorbs heat from indoor air through evaporator coils

• The warm refrigerant is then pumped to the condenser coils located outside

• Condenser coils release the heat absorbed from indoor air to the outside environment

• The refrigerant then goes back to the evaporator coils to repeat the cycle
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Q3. Basics of semiconductor devices (by japanese panelist)
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Q4. How can you make a transistor if semiconductor material is given to you (by japanese panelist)
Ans. 
To make a transistor, semiconductor material can be used to create a structure with three layers: emitter, base, and collector.
• Start by doping the semiconductor material with impurities to create the different layers.

• Use lithography and etching techniques to define the structure of the transistor.

• Add metal contacts to the different layers to allow for electrical connections.

• Test the transistor to ensure proper function...read more
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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. Tell me about raw materials availability
Ans. 
Raw material availability is crucial for production and can be affected by various factors.
• Raw material availability can be affected by weather conditions, transportation issues, and supply chain disruptions.

• Companies need to have contingency plans in place to mitigate the impact of raw material shortages.

• Monitoring raw material prices and trends can help companies anticipate potential shortages and take proactive meas...read more
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Q2. What is global warming
Ans. 
Global warming is the gradual increase in the Earth's average surface temperature due to human activities.
• It is caused by the release of greenhouse gases such as carbon dioxide, methane, and nitrous oxide.

• These gases trap heat in the Earth's atmosphere, leading to a rise in temperature.

• This can cause a range of negative impacts, including melting of polar ice caps, rising sea levels, and more frequent and severe weathe...read more
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