The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is A. Circle method B. Equivalent pipe method C. Electrical analysis method D. Hardy cross method

The correct answer is: D. Hardy cross method

The Hardy Cross method is a hydraulic analysis method used to determine the pressure and flow in a pipe network. It is a iterative method that solves for the unknown head losses in a network of pipes. The method is based on the principle of conservation of energy, and it can be used to analyze both steady-state and transient flow conditions.

The Hardy Cross method is a powerful tool for analyzing pipe networks, but it can be complex to use. It is important to understand the basic principles of hydraulics before using the method.

The other options are incorrect because:

• The circle method is a graphical method for analyzing pipe networks. It is a simple method to use, but it is not as accurate as the Hardy Cross method.
• The equivalent pipe method is a method for converting a complex pipe network into a simpler network of equivalent pipes. It is a useful method for simplifying complex networks, but it is not as accurate as the Hardy Cross method.
• The electrical analysis method is a method for analyzing pipe networks using electrical analogy. It is a useful method for understanding the behavior of pipe networks, but it is not as accurate as the Hardy Cross method.