True or False 1. Be sure to calculate quantities of panelboards, starters for motors, control stations, circuit breakers, safety switches and disconnects, fuses, and meter centers and sockets. these are not a part of the competed assembly and not necessary for a comprehensive estimate. 2. P-traps serve as receptacles for water deposited by downspouts connected to the roof gutters or from ground water overflows. 3. A socket or a coupling is used for joining two pieces of pipes without altering the direction of the conduits. 4. water lines are bid using the same procedure as for fire sprinkler systems.   Note: please provide an explanation thank you

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Soil engineering for highway design

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibility, and porosity of the soil. This makes soil engineering an important topic for civil engineering.