Inspection and Testing

1. When testing a drainage system, the system should be filled with water or air for a minimum of:

• a. 15 minutes.
• b. 30 minutes.
• c. 1 hour.
• d. 2 hours.

2. When using water to test a drainage system the maximum feet of head allowed is:

• a. 10 feet.
• b. 20 feet.
• c. 30 feet.
• d. 40 feet.

3. When testing gas piping, you use:

• a. Water
• b. Natural Gas
• c. Carbon dioxide, nitrogen, air
• d. Oxygen

4. Test gauges shall not have a pressure range more than ______ the test pressure.

• a. equal
• b. twice
• c. 15 psi
• d. 60 psi

5. Except for plastic piping, water piping systems may be tested with ________________________.

• a. 10 psi air pressure
• b. 50 psi air pressure
• c. 10 psi CO2
• d. 60 psi CO2

6. Except for plastic pipe, in lieu of water test, drainage piping may be tested with _________________.

• a. air
• b. ether
• c. smoke
• d. gas

7. Schedule 40 plastic DWV systems shall not be tested by _____________.

• a. water
• b. air
• c. 10-foot head of water
• d. water from low to high point

8. The gas piping pressure test for medium pressure shall be ____________________.

• a. carbon monoxide
• b. carbon dioxide
• c. oxygen
• d. methane gas

9. Which of the following is not part of a rough gas piping inspection_________?

• a. operation of appliances
• b. proper material
• c. pressure test
• d. installation meets the requirements of the code

10. “Rough Piping Inspection” of gas piping shall be made _________________________________.

• a. after all gas piping authorized by the permit has been installed
• b. before all gas piping has been covered or concealed
• c. before any fixture or appliances has been attached thereto
• d. all of the above