i
Johnson Controls
Filter interviews by
I am a Graduate Engineer Trainee with a strong family background in engineering. My final year project focused on developing a sustainable energy solution.
Graduate Engineer Trainee with engineering background
Strong family background in engineering
Final year project focused on sustainable energy solution
Big Data refers to large and complex datasets that cannot be easily managed or processed using traditional data processing techniques.
Big Data is characterized by the 3Vs: Volume, Velocity, and Variety.
Volume refers to the vast amount of data generated and collected from various sources.
Velocity refers to the speed at which data is generated and needs to be processed in real-time.
Variety refers to the different types a...
Data can be analyzed by using various techniques such as data mining, machine learning, and statistical analysis.
Use data mining techniques to discover patterns and relationships in the data
Apply machine learning algorithms to make predictions and classifications
Utilize statistical analysis to identify trends and draw conclusions
Use visualization tools to present the data in a meaningful way
Employ parallel processing a...
C is a procedural programming language while C++ is an extension of C with added features of object-oriented programming.
C is a procedural language, while C++ supports both procedural and object-oriented programming.
C++ has additional features like classes, objects, inheritance, and polymorphism.
C++ supports exception handling and templates, which are not available in C.
C++ allows function overloading and operator over...
Object-oriented programming is a programming paradigm that uses objects to represent and manipulate data. Procedural programming is a programming paradigm that uses procedures or functions to structure the program.
Object-oriented programming focuses on objects and their interactions.
Procedural programming focuses on procedures or functions.
In object-oriented programming, data and behavior are encapsulated within object...
OOP is a programming paradigm that uses objects to represent and manipulate data and behavior.
Encapsulation: bundling data and methods together in a class
Inheritance: creating new classes from existing ones
Polymorphism: using a single interface to represent different types
Abstraction: simplifying complex systems by breaking them into smaller, manageable parts
Early binding and late binding are two different approaches to linking functions or methods to their respective code.
Early binding is done at compile-time, where the function call is resolved before the program is executed.
Late binding is done at runtime, where the function call is resolved during the program's execution.
Early binding provides better performance as the function call is already resolved.
Late binding all...
Functions are blocks of code that perform a specific task and can be reused throughout a program.
Functions are used to break down a program into smaller, manageable parts.
They improve code reusability and modularity.
Functions can take input parameters and return output values.
Examples of functions include calculating the square root of a number or sorting an array.
Functions are used in a program to modularize code, improve code reusability, enhance readability, and simplify debugging.
Functions help break down complex tasks into smaller, manageable parts.
They promote code reusability by allowing the same code to be used multiple times.
Functions enhance code readability by organizing code into logical blocks.
They simplify debugging as errors can be isolated and fixed within a spec...
An abstract class in Java is a class that cannot be instantiated and is used as a blueprint for other classes.
An abstract class can have both abstract and non-abstract methods.
It can have abstract methods without any implementation.
It can also have non-abstract methods with implementation.
Abstract classes are meant to be extended by other classes.
To use an abstract class, it must be extended and its abstract methods mu
Abstract methods are methods without implementation. They are used to enforce implementation by subclasses.
Abstract methods are declared with the 'abstract' keyword and end with a semicolon instead of a method body.
They are used in abstract classes to enforce implementation by subclasses.
Subclasses must provide an implementation for all abstract methods or be declared as abstract themselves.
Abstract methods are useful ...
RDBMS is a type of DBMS that stores data in a structured manner using tables and enforces relationships between them.
DBMS is a software system that manages databases, while RDBMS is a specific type of DBMS.
RDBMS uses a tabular structure to store data, with each table consisting of rows and columns.
RDBMS enforces the ACID properties (Atomicity, Consistency, Isolation, Durability) to ensure data integrity.
RDBMS supports ...
Primary key is a unique identifier for a record in a database table. Candidate key is a potential primary key. Composite key is a combination of two or more columns to uniquely identify a record.
Primary key uniquely identifies a record in a table
Candidate key is a potential primary key that can be chosen as the primary key
Composite key is a combination of two or more columns to uniquely identify a record
Example: In a t...
A foreign key is a column or a set of columns in a database table that refers to the primary key of another table.
Foreign keys establish relationships between tables in a relational database.
They ensure referential integrity and maintain data consistency.
Foreign keys can be used to enforce constraints and enable cascading updates or deletes.
They allow data from multiple tables to be linked together based on common valu...
I was interviewed in Jan 2025.
Active power is the actual power consumed by a system, while reactive power is the power that oscillates between the system and the source.
Active power is the real power consumed by electrical devices and is measured in watts (W).
Reactive power is the power that flows back and forth between the source and the load, without performing any useful work.
The combination of active power and reactive power gives the total pow...
Different types of temperature sensors include thermocouples, RTDs, thermistors, and infrared sensors. RTD stands for Resistance Temperature Detector and PT100 is a type of RTD.
Thermocouples: measure temperature based on voltage produced by two different metals joined together
RTDs (Resistance Temperature Detectors): measure temperature by changes in electrical resistance
Thermistors: measure temperature based on changes...
BMS are systems that control and monitor building operations, such as HVAC, lighting, and security, to improve efficiency and occupant comfort.
BMS integrate various building systems to centralize control and monitoring.
They use sensors and actuators to collect data and adjust settings based on predefined parameters.
BMS can optimize energy usage, reduce maintenance costs, and improve occupant comfort.
Examples of BMS inc...
Forward flow is the direct action of the controller on the process, while backward flow is the feedback from the process to the controller in a PID control system.
Forward flow is the control action that directly affects the process based on the setpoint and error signal.
Backward flow is the feedback mechanism where the process output is compared to the setpoint to generate an error signal for the controller.
In a PID co...
I am a Senior Application Engineer with 8 years of experience in developing and implementing software solutions for various industries.
8 years of experience in software development
Proficient in programming languages such as Java, C++, and Python
Strong background in designing and implementing complex applications
Experience working with cross-functional teams to deliver high-quality solutions
Proven track record of succes...
My family background is diverse with members in various professions. My father is a retired engineer.
Diverse family background
Father is a retired engineer
Seeking new challenges and opportunities for growth in a different environment.
Desire for new challenges and learning opportunities
Seeking career advancement and growth
Interest in working with different technologies or industries
Better work-life balance or company culture
Relocation or commute reasons
Modbus and BACnet are communication protocols used in Building Management Systems (BMS) to enable devices to communicate with each other.
Modbus is a serial communication protocol commonly used for connecting industrial electronic devices. It is simple and easy to implement.
BACnet is a protocol specifically designed for building automation and control networks. It allows different devices from different manufacturers to...
Very friendly interviewer. Just focus on basic things.
An operational amplifier is a high-gain electronic voltage amplifier with differential inputs and a single output.
Operational amplifiers are commonly used in analog circuits for signal processing, filtering, and mathematical operations.
They have a very high input impedance and a very low output impedance.
Op-amps can be configured in various ways such as inverting amplifier, non-inverting amplifier, summing amplifier, i...
A transistor is a semiconductor device used to amplify or switch electronic signals.
Transistors are fundamental building blocks of modern electronic devices.
They can amplify electrical signals, control the flow of current, and act as switches.
There are two main types of transistors: bipolar junction transistors (BJTs) and field-effect transistors (FETs).
Transistors are used in a wide range of applications, from compute...
I applied via Naukri.com and was interviewed in Aug 2024. There were 2 interview rounds.
I am a dedicated and detail-oriented RTR Analyst with a strong background in financial analysis and reporting.
I have a Bachelor's degree in Accounting and Finance
I have 3+ years of experience in reconciliations and financial reporting
I am proficient in using accounting software such as SAP and QuickBooks
I have a strong attention to detail and problem-solving skills
I have excellent communication and teamwork abilities
I have 3 years of experience working as a financial analyst at XYZ Corporation.
Worked as a financial analyst at XYZ Corporation for 3 years
Analyzed financial data to provide insights and recommendations
Prepared financial reports and presentations for senior management
Johnson Controls interview questions for popular designations
I applied via Campus Placement and was interviewed in Sep 2024. There were 4 interview rounds.
Basic questions was asked in this round. In which questions are based on your educational field and aptitude questions are also there.
I am a dedicated and hardworking graduate student with a passion for research and learning.
Currently pursuing a Master's degree in [specific field]
Have experience conducting research projects and presenting findings
Interested in furthering my education and contributing to the academic community
I am passionate about your research focus and believe I can contribute meaningfully to your team.
I am impressed by the innovative projects your lab is working on
I have relevant experience and skills that align with your research goals
I am excited about the opportunity to collaborate with experts in the field
Get interview-ready with Top Johnson Controls Interview Questions
I applied via Referral and was interviewed in Nov 2024. There were 2 interview rounds.
100 questions 50 apti 50 tech
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.
Ohm's Law is represented by the formula V = I * R, where V is the voltage, I is the current, and R is the resistance.
It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.
For example, if a circu...
Developed a smart irrigation system using IoT technology.
Used sensors to monitor soil moisture levels
Implemented a microcontroller to control water flow to plants
Designed a mobile app for users to remotely monitor and adjust irrigation settings
Wiring diagrams are visual representations of electrical circuits, showing how components are connected.
Start by identifying all components in the circuit
Draw a diagram showing the connections between components
Use standard symbols for components like resistors, capacitors, and wires
Label each component and connection for clarity
Include a legend if necessary to explain symbols used
I chose electrical engineering because of my passion for understanding and working with technology, as well as the opportunity to innovate and solve complex problems.
Passion for technology and innovation
Interest in understanding how things work
Desire to solve complex problems
Opportunity to work on cutting-edge projects
Potential for career growth and development
Zener diodes are used for voltage regulation, voltage reference, surge protection, and in voltage stabilizers.
Voltage regulation in power supplies
Voltage reference in circuits
Surge protection in electronic devices
Voltage stabilizers in automotive systems
Overvoltage protection in communication systems
Apptitude questions related to core
I was interviewed in Jan 2025.
What people are saying about Johnson Controls
Some of the top questions asked at the Johnson Controls interview -
The duration of Johnson Controls interview process can vary, but typically it takes about less than 2 weeks to complete.
based on 239 interviews
Interview experience
based on 2.9k reviews
Rating in categories
Assistant Manager
1.3k
salaries
| ₹0 L/yr - ₹0 L/yr |
Senior Executive
1.1k
salaries
| ₹0 L/yr - ₹0 L/yr |
Deputy Manager
670
salaries
| ₹0 L/yr - ₹0 L/yr |
Manager
361
salaries
| ₹0 L/yr - ₹0 L/yr |
Applications Engineer
335
salaries
| ₹0 L/yr - ₹0 L/yr |
Siemens
Honeywell Automation
Schneider Electric
ABB