1. After a collection system problem has been solved, you should _.
a. wait until tomorrow to fill out the report forms
b. take a break
c. go home
d. evaluate the effectiveness of the results

2. Why must you always know where a cleaning tool is in a sewer?
a. so the tool can find its way back
b. so you can locate it when resuming work after an interruption
c. so you can know where obstructions or difficulties are encountered

3. Improper connections can be detected through _.
a. D.O. tests
b. soundings
c. TV inspection
d. all the above

4. When curing a concrete slab, which of the following tools is used to compact the concrete and bring in a cement film to the surface for finishing?
a. grasshopper
b. tamper
c. trowel
d. vibrator

5. Emergency stoppages in pipelines may be cleared safely by use of _.
a. hand rods
b. high velocity cleaners
c. power rodders
d. all the above

Answers:

1. d
2. c
3. c
4. d
5. d