ETC Study Guide 2026
Everything you need to pass the ETC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 ETC Exam Format at a Glance
📚 ETC Topics to Study (34)
✍️ Sample ETC Questions & Answers
1. What does NPDES stand for in stormwater management?
The NPDES permit program under the Clean Water Act regulates point source discharges of pollutants into waters of the US, including construction site stormwater.
2. What does tributary area mean in structural load distribution?
Tributary area is the portion of floor, roof, or wall area that is supported by and loads a particular beam, column, or foundation element.
3. What is the purpose of a strainer in a piping system?
A strainer captures debris, scale, and particulates in flowing fluid before they can damage pumps, valves, meters, and other sensitive equipment.
4. What does an 811 Call Before You Dig utility locate identify on a site?
An 811 utility locate request causes utility companies to mark the approximate location of buried utilities to prevent accidental damage during excavation.
5. What is lockout/tagout (LOTO) used for?
Lockout/tagout (LOTO) is a safety procedure used to ensure that dangerous machines are properly shut off and not able to be started up again prior to the completion of maintenance or servicing work. It physically prevents the release of hazardous energy, protecting workers from unexpected startup or energy release. This procedure is critical for preventing severe injuries or fatalities.
6. Which document defines the legal boundaries of a parcel of land?
A plat or survey plan is a legal document prepared by a licensed surveyor that defines property boundaries, dimensions, and easements.