Hardy cross method of analysis of distribution system (i) Involves successive trials (ii) Takes economic aspects into account (iii) Is time consuming A. Only (i) B. (i) and (ii) C. (i) and (iii) D. All are correct

The correct answer is: D. All are correct

The Hardy Cross method is a method for analyzing the flow of electricity in a power distribution system. It is a trial-and-error method, which means that it involves making successive guesses at the values of the unknown variables until a solution is found. The method takes into account the economic aspects of the system, such as the cost of power losses and the cost of equipment. It is a time-consuming method, but it is accurate and can be used to analyze complex systems.

Here is a brief explanation of each option:

• Option (i): The Hardy Cross method involves successive trials. This means that the method starts with an initial guess at the values of the unknown variables, and then it makes successive adjustments to these values until a solution is found. This process can be time-consuming, especially for large systems.
• Option (ii): The Hardy Cross method takes economic aspects into account. This means that the method considers the cost of power losses and the cost of equipment when it calculates the flow of electricity in the system. This is important because it allows the method to find the most economical solution.
• Option (iii): The Hardy Cross method is time consuming. This is because the method involves successive trials, and each trial can be time-consuming for large systems. However, the method is accurate and can be used to analyze complex systems.