1. Hanger rod size for 1/2" to 4" pipe is __________ inch.

• a. 1/4
• b. 3/8
• c. 1/2
• d. 5/8

2. Hanger rod size for 5" to 8" pipe is __________ inch.

• a. 1/4
• b. 3/8
• c. 1/2
• d. 5/8

3. Hanger rod size for 10" to 12" pipe is __________ inch.

• a. 1/4
• b. 3/8
• c. 1/2
• d. 5/8

4. From Table 501.1, the first hour rating for a domestic water heater that serves 1 to 1.5 bathroom(s) with 1 bedroom is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74

5. From Table 501.1, the first hour rating for a domestic water heater that serves 1 to 1.5 bathroom(s) with 2 bedrooms is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74

6. From Table 501.1, the first hour rating for a domestic water heater that serves 1 to 1.5 bathroom(s) with 3 bedrooms is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74

7. From Table 501.1, the first hour rating for a domestic water heater that serves 2 to 2.5 bathroom(s) with 2 bedrooms is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74

8. From Table 501.1, the first hour rating for a domestic water heater that serves 2 to 2.5 bathroom(s) with 3 bedrooms is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74

9. From Table 501.1, the first hour rating for a domestic water heater that serves 2 to 2.5 bathroom(s) with 4 bedrooms is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74

10. From Table 501.1, the first hour rating for a domestic water heater that serves 2 to 2.5 bathroom(s) with 5 bedrooms is _______ Gallons.

• a. 38
• b. 49
• c. 62
• d. 74