Question

the supply water piping diameter inside houses should be at least
¼ - inch
½ - inch
¾ - inch
1 - inch
1½ - inch
question 18
the water service line diameter from the street to new houses should be at least
¼ - inch
½ - inch
¾ - inch
1 - inch
1½ - inch

Explanation:

Building - code and plumbing standards typically specify minimum diameters for water - supply piping. For supply water piping inside houses, a common minimum is ½ - inch to ensure adequate water flow. For the water service line from the street to new houses, a ¾ - inch diameter is often the minimum to meet the demand of the entire house.

Answer:

For the supply water piping inside houses: B. ½ - inch
For the water service line from the street to new houses: C. ¾ - inch