Johnson Controls Hitachi Air Conditioning Graduate Engineer Trainee (Get) Interview Questions and Answers

GD was on a common topic, whichever is trending. Candidates were divided into groups and each group was given a separate topic to discuss on.

Q1. Basic info about your specialisation during your graduation
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Q2. Was asked question of Trigonometry, not sure were it would help !
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Q1. What is polymorphism and method overriding
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data. Method overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.
• Polymorphism allows different classes to be treated as instances of a common superclass.

• Method overriding is a feature that allows a subclass to provide a specific implementation of a method that...read more
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Q2. What is encaplusulation and explain it with an example
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Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and only exposing the necessary functionalities.

• It allows for better control over the data by preventing direct access from outside the class.

• An example of encapsulation is a class in object-oriented programming that has private variables and public methods
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Quants,verbal,logic,little technical knowledge.

Q1. Do you know cloud?
Ans. 
Yes, I am familiar with cloud computing and its various services.
• Cloud computing refers to the delivery of computing services over the internet.

• Examples of cloud services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

• Benefits of cloud computing include scalability, cost-effectiveness, and flexibility.
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Q2. Why has there been a drop in your percentage from grade 10th to grade 12th?
Ans. 
The drop in my percentage from grade 10th to grade 12th was due to personal challenges and increased academic rigor.
• Personal challenges such as family issues or health problems may have affected my focus and study time.

• The transition from lower to higher grades often comes with a higher level of difficulty in subjects, leading to a drop in grades.

• Increased extracurricular activities or responsibilities outside of schoo...read more
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Q1. Be technical on your
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Q1. Tell me about your self
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Q2. About design field and technical
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Q1. Only computer based psychometric test
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Demonetisation a success or failure

Q1. Industrial Internship project based questions
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Q2. Diagram of full wave bridge rectifier circuit
Ans. 
A full wave bridge rectifier circuit converts AC voltage into DC voltage using four diodes.
• Consists of four diodes arranged in a bridge configuration

• Converts both halves of the input AC waveform into DC output

• Provides higher efficiency compared to half wave rectifier

• Commonly used in power supplies and battery chargers
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Q3. Need and use of filter capacitor in rectifier circuit
Ans. 
Filter capacitor in rectifier circuit is used to smooth out the output voltage by reducing ripple and noise.
• Filter capacitor stores and releases electrical energy to reduce voltage ripple in rectified output

• It helps in converting pulsating DC output of rectifier into a smoother DC output

• Commonly used in power supplies and electronic devices to improve stability and reduce interference

• Examples include smoothing capacito...read more
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Q4. Introduction of yourself
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Q5. What will be you approach to resolve a worker union strike over salary and working hours?
Ans. 
I would prioritize open communication, negotiation, and finding a mutually beneficial solution.
• Initiate open dialogue with union representatives to understand their concerns and demands

• Negotiate in good faith to find a compromise that addresses both the workers' needs and the company's financial constraints

• Consider involving a mediator or arbitrator to facilitate discussions and help reach a resolution

• Ensure transparen...read more
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Q6. Flexibility about being posted to pune or pondicherry plant?
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Q7. Choice of profile- production, development and plant maintainance?
Ans. 
I am interested in the production profile as it involves hands-on work and problem-solving in a dynamic environment.
• Enjoy working on the production floor and seeing tangible results

• Like the challenge of optimizing processes and improving efficiency

• Interested in learning about lean manufacturing principles

• Have experience with production-related projects or internships
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Q1. 1.What is circuit ? 2.what is PCB 3.what is a frequency 4.differance between AC and DC 5.how electricity generated in our country 6.renewable and non renewable sources 7.what is ScR 8.how to supply elec...read more
Ans. 
Answers to questions related to electrical engineering concepts.
• A circuit is a closed loop through which electricity flows.

• PCB stands for Printed Circuit Board, used to connect and support electronic components.

• Frequency is the number of cycles per second in an alternating current.

• AC is alternating current that changes direction periodically, while DC is direct current that flows in one direction.

• Electricity is generat...read more
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