The Golden State: Where & How to Live, Secure, Visit, Enjoy and Thrive in California

How To Design And Install Plumbing

5. What precaution must be taken when making a vitrified clay to castiron pipe joint?
6. What qualities must a cast-iron pipe which is joined to vitrified clay pipe possess?
7. Under what circumstances is a composition joint used?
8. What is a calk joint?
9. For what purpose is oakum used?
10. Explain how you would make a vertical calk joint.
11. When a fitting is cracked, what procedure is followed?
12. How does the process of making a horizontal calk joint differ from that of making a vertical joint?
13. Explain how you would out off a piece of cast-iron pipe.
14. What materials are used in making an acid-resistant calk joint?
15. Explain the essential qualities of a screw thread joint.
16. Why must the pipe be reamed Delore making a screw thread joint?
17. What is a sweat joint?
18. What tools are used in producing a wiped joint?

Chapter V—The House Sewer

1. What portion of the drainage system is the house sewer?
2. What common difficulties occur in a house sewer constructed of vitrified clay pipe?
3. Explain the process involved in making the connection of the house sewer to a concrete public sewer.
4. Explain how you would insert a newY in the public sewer to complete a house sewer terminal.
5. What do you understand by a slant?
6. What factors must be determined before a house sewer can be installed?
7. What is the permissible covering of a clay house sewer?
8. What do you understand by the term additional grade?
9. What is considered the smallest diameter of pipe practical for house sewer service?
10. Under what circumstances can one house sewer serve two buildings?
11. What is the recommended minimum pitch per foot for a house sewer?
12. What essential qualities should a house sewer possess?

Chapter VI—The House Drain

1. Define the term "house drain."
2. Of what materials should a house drain be constructed?
3. How are house drains classified, and what wastes does each type handle?
4. What constitutes a fixture unit?
5. Why is the unit system a practical method for sizing the house drain? P. At what grade per foot should a house drain be extended?
7. What essential qualities should a house drain possess?
8. What is meant by a self-scouring flow?
9. Why is excessive grade of the house drain impractical?
10. What is the smallest diameter of house drain permissible?
11. How must change of direction of the house drain be made?
12. At what locations on the house drain is it necessary to place cleanouts?
13. Why must a cleanout be extended at least 2 inches above the finished floor?
14. What is the smallest diameter of cleanout that may be used on a house drain?
15. Why must the branches of a house drain be carefully planned?
16. What precaution must be taken when backfilling the trench in which the house drain has been installed?