Johnson Controls job Trainee Interview Questions and Answers

Q1. Define Oops concepts
Ans. 
Oops concepts refer to object-oriented programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail
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Q2. SQL inner join query
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Q1. Tell me ohm's law explain
Ans. 
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
• Ohm's law is represented by the equation I = V/R, where I is the current, V is the voltage, and R is the resistance.

• It applies to conductors that are ohmic, meaning their resistance remains constant regardless of the applied voltage or current.

• Ohm's law is used in electrical engineering...read more
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Q2. Work bridge rectifier
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Q3. Types of motor what is motor
Ans. 
A motor is a device that converts electrical energy into mechanical energy.
• There are various types of motors such as AC motors, DC motors, stepper motors, servo motors, etc.

• AC motors are commonly used in household appliances and industrial machinery.

• DC motors are used in electric vehicles, robotics, and small appliances.

• Stepper motors are used in printers, scanners, and CNC machines.

• Servo motors are used in robotics, a
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Its online test consists of technical topics

2 GD's

Q1. Technical questions based on your specialization
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