Welcome to the 25 Question Water Distribution Practice Test.
Choose the best possible answer to the question.
1.
The C factor, or carrying capacity of a pipe, is often reduced by?
2.
Friction in a pipe can cause?
3.
What is the pneumatic standard range?
4.
Testing for individual pathogens would be very expensive. Instead, test for an indicator organism. What organism should be tested for?
5.
What contributes to the creation of algae blooms?
6.
What type of water main is now banned from being installed in the drinking water industry?
7.
What is the only MCL that varies with the temperature?
8.
An underground layer of water bearing permeable rock is?
9.
What is the maximum contaminant level goal (MCLG) for a known or suspected carcinogen?
10.
Compressive fittings used with copper or plastic tubing seal by using?
11.
If a bac-T sample is positive, repeat samples must be taken
12.
How much deflection is allowed for AC couplings that are 3" to 12" in diameter?
13.
What is the unit of measurement used to express velocity in a water pipe?
14.
When employees are working in a trench that is 5' deep or more, that must have an adequate means of exit within 25' like?
15.
Hydrogen Sulfide is a dangerous gas that has a rotten egg odor and can be deadly to a water operator. What should you do if you encounter the smell?
16.
The outlet of a forced ventilation system for a chlorinator room she be located?
17.
Public water systems using surface water must continuously monitor the disinfection residual entering the distribution system if serving more than?
18.
What agency mandates the language and methods for public notification?
19.
Venturi meters are used for?
20.
What is an example of Tier III violation.
21.
Inspection of a pump shaft and coupling should be performed?
22.
Anaerobic bacteria live?
23.
How long can samples being tested for coliforms be refrigerated before analysis?
24.
What device found in labs sterilizes by using pressurized steam?
25.
What are two ways to prevent freezing in a water storage tank?
