Questions and CORRECT Answers
Legally responsible officals are required to report catagory 1 sanitary sewer overflows: -
CORRECT ANSWER Within two hours
When testing a manhole for explosive gases when should the first test be made? - CORRECT
ANSWER Before removing the manhole cover
When setting up to ventilate a manhole,the air inlet should be how many feet above street level?
- CORRECT ANSWER 2.0 feet
Which chemical may be used for odor control in a sewer system? - CORRECT
ANSWER Hydrogen peroxide
A category 2 is: - CORRECT ANSWER Any sso which is not a category 1
Which tool would you use for cleaning under a pipe, or hard dirt near a pipe? - CORRECT
ANSWER Miner's pick
When pouring a concrete slab, which of the following tools is used to finish the concrete? -
CORRECT ANSWER Trowel
How can the velocity of water flowing in a sewer be estimated? - CORRECT
ANSWER Measuring the time it takes for the dye to be carried by the wastewater between the
two manholes
When a grade conflict exist between a water main and a sewer main, which of the following is
the best solution? - CORRECT ANSWER Have the water main adjusted and hold the grade
on the sewer main
, A source of infiltration in a collection is: - CORRECT ANSWER Broken pipe joints
Pipe materials that are the least susceptible to corrosion by acids formed from gases generated in
a sewer is: - CORRECT ANSWER VCP
Liners are installed in sewers to correct problems caused by: - CORRECT
ANSWER Infiltration
"Schedule 40" refers to: - CORRECT ANSWER Wall thickness
Category 1 SSO is: - CORRECT ANSWER A. Any volume reaching a water surface
B. Any volume entering a storm drain and not recovered
C. Any spill greater the a 1000 gallons
D. ALL THE ABOVE
In a 25 MPH zone, Distance of Flagger Station in the Advanced of a Work Space should be: -
CORRECT ANSWER 155 feet
What is a flow rate - CORRECT ANSWER Q = AV
Flow = Area x Velocity
Responsibilities - CORRECT ANSWER Those duties one is held accountable for.
Responsibility - CORRECT ANSWER Duty or obligation to perform a prescribed task or
service or attain an object.
Theory X - CORRECT ANSWER Negative approach to human relations in which a
supervisor presumes most people don't like to work and thus need to be pushed or threatened.