1. ABS and PVC DWV piping may be installed in structures of _____.

• a. noncombustible construction
• b. unlimited height
• c. all of these
• d. combustible construction

2. Fittings on screwed drainage pipe shall be of (the) ______________________.

• a. caulk-drainage type
• b. duro iron
• c. recessed-drainage type
• d. galvanized steel

3. Threads in drainage fittings shall be tapped to allow for _____.

• a. adjustment
• b. grade
• c. expansion
• d. economy

4. The minimum size trap and trap arm for a bathtub is_______________.

• a. 1-1/2 inches
• b. 2 inches
• c. 2-1/2 inches
• d. 3 inches

5. The minimum size drain line for a wall-hung urinal is _____ inches

• a. 2
• b. 1-1/4
• c. 1-1/2
• d. 3

6. A domestic dishwasher, with independent drain, has a drainage fixture unit value of _____.

• a. 2
• b. 3
• c. 4
• d. 1

7. The minimum size trap at "D" is ______________.

• a. 1-1/2 inches
• b. 2 inches
• c. 3 inches
• d. 4 inches

8. The number of fixture units at "C" is __________.

• a. 2
• b. 4
• c. 6
• d. 8

9. The minimum size trap arm at "G" is ____ inch.

• a. 2
• b. 2-1/2
• c. 3
• d. 4

10. The total number of fixture units at "A" is __________.

• a. 16
• b. 20
• c. 22
• d. 24