The pipe connecting the riser to the cross mains is called the

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Multiple Choice

The pipe connecting the riser to the cross mains is called the

Explanation:
The connecting pipe is the feed main. In a typical fire protection or plumbing layout, water travels up a vertical riser and then is fed into horizontal distribution through the cross mains. The pipe that carries water from the riser into the cross mains is called the feed main because its job is to feed the horizontal network with the supply needed to distribute water to the branches and sprinklers. The riser is the vertical conduit, the cross mains are the horizontal distribution lines, and branch lines are smaller pipes that go from the cross mains to individual sprinkler heads.

The connecting pipe is the feed main. In a typical fire protection or plumbing layout, water travels up a vertical riser and then is fed into horizontal distribution through the cross mains. The pipe that carries water from the riser into the cross mains is called the feed main because its job is to feed the horizontal network with the supply needed to distribute water to the branches and sprinklers. The riser is the vertical conduit, the cross mains are the horizontal distribution lines, and branch lines are smaller pipes that go from the cross mains to individual sprinkler heads.

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