Question 5017 of 229 · California Water Distribution Operator Exam
Which equipment is used to compact backfill in layers?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 5017
- D: Plate compactor or tamper
Explanation
Mechanical compactors achieve the required density in each lift. Large equipment is kept off the pipe until enough cover is in place.
More questions: Water Mains and Piping
- 5018What does a tapping machine do?
- 5019Which factor determines the tap size relative to the main?
- 5020What is the purpose of a corporation stop?
- 5021Where is a curb stop usually located?
- 5022Why should a new service line be flushed before the meter is installed?
- 5023Which pipe fitting changes a line's direction?