CALIFORNIA WATER ENVIRONMENT ASSOCIATION
(CWEA) COLLECTIONS SYSTEM MAINTENANCE
GRADE 3 LATEST EXAM 2026/2027 COMPLETE
STUDY QUESTIONS WITH VERIFIED SOLUTIONS
100% TOP RATED | ASSURED A+
,CALIFORNIA WATER ENVIRONMENT ASSOCIATION
(CWEA) COLLECTIONS SYSTEM MAINTENANCE GRADE 3
LATEST EXAM 2026/2027 COMPLETE STUDY QUESTIONS
WITH VERIFIED SOLUTIONS 100% TOP RATED | ASSURED
A+
If the camera becomes wedged during a video inspection, which of the following would be your
first step in solving the problem?
a. Dig up the area where the camera is wedged.
b. Attempt to free the camera with the tag line.
c. Attach pull cable to a backhoe and pull is out.
d. Wait awhile to see if it will free itself. - Answer>>> b. Attempt to free the camera with the tag
line.
Responsibilities of supervisors and managers for a safety program include:
a. not providing a written safety policy.
b. never provide safety training.
c. identify and correct unsafe work practices.
d. never investigate accidents. - Answer>>> c. identify and correct unsafe work practices.
Why is the replacement of wastewater collection systems in some downtown streets difficult?
a. Crowding of other underground utilities.
b. Records have not been maintained properly and the collection system is lost.
c. Some people have landscaped their backyards over the collection system and do not want their
yards dug up.
d. The streets will have to be paved again - Answer>>> a. Crowding of other underground
utilities.
, When testing a manhole for explosive gases when should the first tests be made?
a. After removing the manhole cover
b. Before removing the manhole cover
c. At any time
d. After ventilation - Answer>>> b. Before removing the manhole cover
When sewer line grades are too flat, an odor problem is likely to result. The most likely cause of
the odor problem is decreased velocity which:
a. allows decomposable solids to settle.
b. decreases the treatment time in the lines.
c. increases the treatment time of inorganic solids.
d. allow decomposable solids to be suspended. - Answer>>> a. allows decomposable solids to
settle.
Atmospheric hazards encountered in manholes can include:
a. non-explosive atmospheres.
b. non-toxic atmosphere.
c. lack of oxygen.
d. non-flammable atmospheres. - Answer>>> c. lack of oxygen.
The best way to record all work is done through a:
a. closed circuit TV.
b. Polaroid system.
c. tape recorder.
d. work order system - Answer>>> d. work order system
The most important function of record keeping is:
(CWEA) COLLECTIONS SYSTEM MAINTENANCE
GRADE 3 LATEST EXAM 2026/2027 COMPLETE
STUDY QUESTIONS WITH VERIFIED SOLUTIONS
100% TOP RATED | ASSURED A+
,CALIFORNIA WATER ENVIRONMENT ASSOCIATION
(CWEA) COLLECTIONS SYSTEM MAINTENANCE GRADE 3
LATEST EXAM 2026/2027 COMPLETE STUDY QUESTIONS
WITH VERIFIED SOLUTIONS 100% TOP RATED | ASSURED
A+
If the camera becomes wedged during a video inspection, which of the following would be your
first step in solving the problem?
a. Dig up the area where the camera is wedged.
b. Attempt to free the camera with the tag line.
c. Attach pull cable to a backhoe and pull is out.
d. Wait awhile to see if it will free itself. - Answer>>> b. Attempt to free the camera with the tag
line.
Responsibilities of supervisors and managers for a safety program include:
a. not providing a written safety policy.
b. never provide safety training.
c. identify and correct unsafe work practices.
d. never investigate accidents. - Answer>>> c. identify and correct unsafe work practices.
Why is the replacement of wastewater collection systems in some downtown streets difficult?
a. Crowding of other underground utilities.
b. Records have not been maintained properly and the collection system is lost.
c. Some people have landscaped their backyards over the collection system and do not want their
yards dug up.
d. The streets will have to be paved again - Answer>>> a. Crowding of other underground
utilities.
, When testing a manhole for explosive gases when should the first tests be made?
a. After removing the manhole cover
b. Before removing the manhole cover
c. At any time
d. After ventilation - Answer>>> b. Before removing the manhole cover
When sewer line grades are too flat, an odor problem is likely to result. The most likely cause of
the odor problem is decreased velocity which:
a. allows decomposable solids to settle.
b. decreases the treatment time in the lines.
c. increases the treatment time of inorganic solids.
d. allow decomposable solids to be suspended. - Answer>>> a. allows decomposable solids to
settle.
Atmospheric hazards encountered in manholes can include:
a. non-explosive atmospheres.
b. non-toxic atmosphere.
c. lack of oxygen.
d. non-flammable atmospheres. - Answer>>> c. lack of oxygen.
The best way to record all work is done through a:
a. closed circuit TV.
b. Polaroid system.
c. tape recorder.
d. work order system - Answer>>> d. work order system
The most important function of record keeping is:
