LICENSE REVIEW SHEET 2026 FULL
QUESTIONS AND ACCURATE
ANSWERS
◉ Minimum required velocity a inverted siphon requires? Answer:
3ft/sec
◉ Two most common pipe materials used in the collection system?
Answer: Clay & PVC
◉ OSHA minimum standards for shoring, sloping, or trench boxes are?
Answer: 5ft or deeper
◉ If the trench is _____ or deeper, use a portable ladder or other means
of exit. Answer: 4ft or deeper
◉ The ladder most extend ____ feet above the trench and be secured.
Answer: 3ft
◉ Ladders must be within ____ feet of trench workers and not more
than ____ feet apart. Answer: 25ft, 50ft
◉ The excavation spoil must be at least? Answer: 2ft from the edge of
the trench