MASS Dig Safe Regulations 3 — Questions and Answers
Question 1: What color marking indicates gas, oil, steam, or petroleum pipelines?
- Yellow (Correct answer)
- Red
- Green
- Purple
Correct answer: Yellow
Yellow marks gas, oil, steam, petroleum, and other gaseous or flammable materials under the APWA color code.
Question 2: What color is used to mark sewer and drain lines?
- Green (Correct answer)
- Blue
- Purple
- Orange
Correct answer: Green
Green marks sewers, storm drains, and drain lines under the standard color code.
Question 3: What color marks potable (drinking) water lines?
- Blue (Correct answer)
- Purple
- Green
- White
Correct answer: Blue
Blue marks potable drinking water lines under the APWA uniform color code.
Question 4: What does white paint, flags, or stakes indicate at a job site?
- The proposed excavation area or route (Correct answer)
- Electric lines
- Temporary survey markings
- Reclaimed water
Correct answer: The proposed excavation area or route
White is used by the excavator to pre-mark the proposed dig area before locators arrive.
Question 5: What color marks reclaimed water, irrigation, and slurry lines?
- Purple (Correct answer)
- Blue
- Green
- Pink
Correct answer: Purple
Purple marks reclaimed water, irrigation, and slurry lines under the color code.
Question 6: What do temporary survey markings use as their designated color?
- Pink (Correct answer)
- White
- Orange
- Yellow
Correct answer: Pink
Pink marks temporary survey markings under the APWA uniform color code.
Question 7: What color marks communication, alarm, signal lines, cables, and conduit?
- Orange (Correct answer)
- Red
- Yellow
- Blue
Correct answer: Orange
Orange marks communication, alarm or signal lines, cables, and conduit such as telephone and cable TV.
MASS Dig Safe Regulations 3
What color marking indicates gas, oil, steam, or petroleum pipelines?