10+ Addverb Technologies Interview Questions and Answers for Freshers

Spring created via literal is created using curly braces with key-value pairs, while spring created via object is created using a constructor function.

• Spring created via literal: var spring = { color: 'blue', length: 10 };

• Spring created via object: function Spring(color, length) { this.color = color; this.length = length; }

Different motions in a drone are achieved through varying the speed and direction of the propellers.

• Changing the speed of the propellers controls the altitude of the drone.

• Varying the speed of propellers on different sides of the drone allows it to move forward, backward, left, or right.

• Adjusting the speed of the propellers diagonally creates rotational motion for turning.

• Combining these motions enables the drone to perform complex maneuvers like flips and rolls.

Motor is connected to PLC using motor starters or variable frequency drives. PID controller is used for precise control. Fans typically use induction motors. Inrush current is the initial surge of current when a motor starts. Starting current is usually higher than running current.

• Motor is connected to PLC using motor starters or variable frequency drives

• PID controller is used for precise control of motor speed or position

• Fans typically use induction motors for their simplici...read more

HashSet provides constant time performance for basic operations like add, remove, contains, while ArrayList does not.

• HashSet does not allow duplicate elements, while ArrayList allows duplicates.

• HashSet does not maintain insertion order, while ArrayList maintains insertion order.

• HashSet is faster for checking if an element exists (contains) compared to ArrayList.

I would pass box A first, then box C, and finally box B in the specified order.

• Pass box A first

• Pass box C next

• Pass box B last

Polymorphism in C++ allows objects of different classes to be treated as objects of a common superclass.

• Polymorphism is achieved through virtual functions and function overriding.

• It allows for more flexibility and extensibility in code.

• Example: A base class 'Shape' with virtual function 'draw', and derived classes 'Circle' and 'Square' that override 'draw'.

PID controller is a control loop feedback mechanism used in systems to control process variables.

• PID stands for Proportional, Integral, Derivative.

• Proportional term responds to the current error.

• Integral term corrects the accumulated error over time.

• Derivative term predicts future error based on current rate of change.

• Tuning involves adjusting the three parameters (P, I, D) to achieve desired system response.

• Example: In a temperature control system, PID controller adjusts the...read more

Managing client relationships involves effective communication, understanding their needs, providing timely solutions, and building trust.

• Maintain open and clear communication with clients to understand their needs and expectations

• Provide timely and efficient solutions to any issues or concerns raised by clients

• Build trust by delivering on promises and consistently meeting or exceeding expectations

• Regularly follow up with clients to ensure satisfaction and address any new req...read more

I have a basic understanding of mapping and localization.

• I know that mapping involves creating a visual representation of an area, while localization involves determining the position of an object or person within that area.

• I am familiar with tools such as Google Maps and GPS devices that use mapping and localization technologies.

• I understand that mapping and localization are important in fields such as navigation, logistics, and robotics.

• I am eager to learn more about mappin...read more

Industrial automation involves the use of control systems such as robots and computers to handle different processes and machinery in an industrial setting.

• Industrial automation helps improve efficiency and productivity by reducing human intervention in repetitive tasks.

• It involves the use of sensors, actuators, and controllers to monitor and control various processes.

• Examples of industrial automation include automated assembly lines, robotic welding, and automated packaging ...read more

PLC stands for Programmable Logic Controller, used in industrial automation to control machinery and processes.

• PLC is a digital computer used for automation of electromechanical processes.

• It uses a programmable memory to store instructions and specific functions.

• PLCs are commonly used in manufacturing plants, assembly lines, and robotic devices.

• They can be programmed using ladder logic, function block diagrams, or structured text.

• PLCs help in controlling inputs and outputs to...read more

Virtual functions are functions in a base class that are overridden in derived classes, allowing for polymorphic behavior.

• Virtual functions are declared in a base class with the 'virtual' keyword.

• They are intended to be overridden in derived classes to provide specific implementations.

• When a virtual function is called through a base class pointer or reference, the derived class's implementation is executed.

• Virtual functions enable polymorphism, allowing objects of different d...read more