In English aki please

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SECTION A (20 MARKS)

1. The importance of using plumbing symbols in plumbing drawings:

   • Helps in understanding the layout and structure of the plumbing system easily.
   • Simplifies communication between plumbers, engineers, and clients about the project.
   • Ensures accuracy in planning and construction, thus reducing errors and costs.
   • Saves time in reading and interpreting drawings, as symbols are a universal language.

2. Four types of valves used in water storage systems:

   • Gate valve: Used to fully open or close the flow of water.
   • Ball valve: Similar to a gate valve, uses a ball to control the flow of water.
   • Float valve: Regulates the water level in a tank by opening or closing the flow when a certain level is reached.
   • Check valve: Allows water to flow in only one direction, preventing backflow.

3. Three types of steel tanks used in workshops:

   • Storage tanks: Used to store water, oil, or other liquids.
   • Pressure tanks: Used to maintain water pressure in the distribution system.
   • Expansion tanks: Absorb changes in water volume due to temperature, preventing excessive pressure.

4. Four benefits of good housekeeping practices in a workshop:

   • Improved safety: Reduces the risk of accidents and injuries by removing obstacles and clutter.
   • Increased efficiency: Tools and equipment are easily accessible, saving time and boosting productivity.
   • Clean and healthy work environment: Promotes employee morale and reduces illness.
   • Longer lifespan of tools and equipment: Well-maintained tools last longer, reducing replacement costs.

5. Three reasons why record keeping is important in plumbing work:

   • Tracking work history: Helps know what maintenance has been done, dates, and materials used, simplifying future repairs.
   • Cost and budget assessment: Helps track material and labor costs, providing accurate estimates for future projects.
   • Compliance with standards and regulations: Accurate records ensure work meets safety standards and building codes.