Addverb Technologies Interview Questions and Answers

Logical thinking based coding based on arrays for loops and passing of pointers, arrays in function and returning array pointer took place on leetcode, 2nd question was based on linked list, structure implementation, reducing complexity of code, finding if linked list is circular or not with O(1) complexity.

Q1. About yourself and introduction about background
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Q2. Case studies related to the experience
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Q1. About projects, how do they work, what all have you implemented
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Q2. One simple question on average of array elements
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Q1. Power transmission
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Q1. Electric grid stability
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Q1. Where you see yourself
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Q1. What is a mailing machine
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Q2. What is the lathe machine
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Q1. What is polymorphism in C++?
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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'.
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Q2. Explain how different kind of motions are achieved in a Drone
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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 pe
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Q3. Linux Commands?
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Q4. Explain PID controller and its tunning.
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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: I...read more
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