Welcome to the Water Distribution Operator Practice Test.
Choose the best possible answer to the question.
1.
What does MCL stand for?
2.
Valve opening and closing is the main cause of hydraulic transient in a water distribution system.
3.
A measurement of the interior roughness of a pipe is?
4.
What does a, "Hot Bacti" refer to?
5.
What is the greatest problem for most water distribution shut off valves?
6.
Class A fire involves?
7.
The arrangement of water pumps in parallel is typically used to?
8.
Water contaminated with Haloacetic Acids (haa5) may cause?
9.
What type of valve is used to isolate a pump on the suction side?
10.
A yellow fire hydrant body with a blue cap flows at?
12.
What type of fires involve energized electrical equipment such as starters, breakers, and motors?
13.
What is the only acceptable breathing device to wear when handling chlorine leaks?
14.
When gas chlorinators operate at a high rate of withdrawal, what may happen?
15.
What contributes to the creation of algae blooms?
17.
An approved backflow assembly that can be used to prevent backflow and backsiphonage is?
18.
How many feet must a ladder extend above the trench?
19.
The backfill material for a pipe installation should contain enough moisture for a thorough compaction?
20.
How do you prevent wear and vibrations on pumps and motors?
21.
What characteristic of water is a chemical characteristic?
22.
What device serves the same function of the packing?
23.
What is atmospheric pressure at sea level?
24.
What type of personal protective equipment should an operator wear when handling hypochlorite?
25.
What is the MCLG for lead in the drinking water?
