LAB+7

Is a instrument used by a water engineer 2. Why is it used? It is use to project a gently sloping line that connects the water source to the city. 3. What are the parts of an aqueduct? 4. When should you build a trench? Trenches are used when the aqueduct follows the contours of the land.
 * 1) What is a chorobates?
 * Covered Trench
 * Tunnel
 * Pressurized Pipe
 * Wall
 * Arcade

5. Under what conditions should you build one? We Romans built underground to hide and protect water from enemies. Even after the Empire expanded, creating a safe buffer around our aqueducts, we built underground trenches and tunnels because they protected from the stresses of wind and erosion while underground. 6. Why do you need to build shafts? By using shafts, more than one crew can work on a tunnel at a time. The shaft also serves another purpose: Once the tunnel is finished, slaves can crawl down stone steps to clean the tunnel. They can fill buckets with silt or chipped-out calcium deposits left behind from hard water and then haul the buckets out. 7. When will you need to use pressurized pipes? When faced with a deep valley 8. What are they made of? The pipes are usually built of lead 9. When will you have to build walls? When aqueduct engineers have to cross shallow depressions in the landscape, they should build the aqueduct on a wall. 10. What disadvantages are there to building these? 

Walls can impede the natural flow of water and people. 11. When should you build an arcade? In a valley, water engineers should use arcades rather than aqueduct trenches 12. What are the advantages of building them? The arched arcades require less material than walls and don't interfere with the passage of water or people through the environment.