Psn Construction Equipment Interview Questions and Answers

Q1. All basics related to cpp Coding logic some puzzles
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Q2. What is oops and explain
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs focuses on creating objects that contain both data and methods to manipulate that data.

• It allows for reusability, modularity, and flexibility in code.

• Key principles of OOPs include encapsulation, inheritance, and polymorphism.

• Examples of OOPs languages include Java, C++, and Python.
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Q3. Virtual destructor and its use
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Virtual destructor is used to ensure proper destruction of derived class objects when deleted through a base class pointer.
• Virtual destructor is declared in the base class with the 'virtual' keyword.

• It allows the destructor of the derived class to be called when an object is deleted through a base class pointer.

• Without a virtual destructor, only the base class destructor would be called, leading to memory leaks or unde
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Q4. DS and its all concepts write code for reverse linklist
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Reverse a linked list using iterative approach
• Initialize three pointers: prev = null, current = head, next = null

• Iterate through the linked list, updating pointers as follows: next = current.next, current.next = prev, prev = current, current = next

• Update the head to point to the new head (prev)
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Q5. Memory management
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Q1. Electrical Design Related
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Q1. Electrical power
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C# will be asked

Q1. Quetions willbe based on oops concept
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Basic coding questions in c# language

Normal aptitude test (c#,dbms,c++)

Q1. Project discussion DSA Problem solving
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They asked basic programs, cloud computing, computer networking

Q1. Why do you want to join company? , how do you manage your expense of home in this salary amount?
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Q2. Introduce yourself, strength, weakness, hobbies
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Modernization of Small Manufacturing Businesses Boon or Bane

Q1. What are the three laws of thermodynamics ?
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The three laws of thermodynamics are fundamental principles in the study of energy and heat transfer.
• First Law: Energy cannot be created or destroyed, only transferred or converted. For example, when a cup of hot coffee cools down, the energy is transferred to the surrounding air.

• Second Law: Heat naturally flows from hot to cold objects, and entropy (disorder) tends to increase over time. For example, an ice cube melti...read more
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Q2. What is entropy
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Entropy is a measure of disorder or randomness in a system.
• Entropy increases as the system becomes more disordered.

• It is a thermodynamic quantity that describes the amount of energy in a physical system that is not available to do work.

• Entropy can also be thought of as a measure of the number of possible arrangements of a system.

• For example, a messy room has higher entropy than a clean room because there are more possi...read more
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Q1. What is volumetric mode
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Q2. What is gravimetric mode
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Gravimetric mode is a method of analysis that measures the mass of a substance to determine its concentration or purity.
• Gravimetric mode involves measuring the mass of a sample before and after a chemical reaction to determine the amount of a specific component present.

• It is commonly used in analytical chemistry to determine the concentration of a particular element or compound in a sample.

• Examples include gravimetric ...read more
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