Engineering Drawing
These types of pipes are generally connected with bell and spigot joints or flanged joints:

Gas and soil
Water and gas
Soil and waste
Water and steam

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Engineering Drawing
Three dimensional models are often used in the design process to ________.

Help the client understand the overall design concept
Provide the client with a model which they can use to impress their friends
Determine the quantity of brick needed to build the house
Help the client select a color for their carpet

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