Welcome to the 25 Question Water Distribution Practice Test.
Choose the best possible answer to the question.
1.
At what temperature will a fusible plug melt on a 150lb chlorine cylinder?
2.
Water distribution system piping should be rated to withstand how many times higher than normal operating pressure?
3.
Even during a fire event water pressure in a distribution system should never be allowed to drop below?
4.
A connection between a potable water system and a non potable water system is?
5.
Opening the discharge valve one full turn on a chlorine cylinder will?
6.
What is the maximum contaminant level goal (MCLG) for a known or suspected carcinogen?
7.
If a water system collects at least 40 samples per month for total coliform analysis, what the is the acceptable percentage of samples that can come back positive?
8.
What type of oil should not be used to lubricate bearings because it forms acids as it begins to break down?
9.
The proper emergency kit for a TON chlorine cylinder is?
10.
A water source that flows continuously at all times of the year is called?
11.
What valve is the best for regulating flow?
12.
If air is used to generate ozone, which percentage of the air is usually converted to ozone?
13.
If a bac-T sample is positive, repeat samples must be taken
14.
The Safe Drinking Water Act sets?
15.
The most widely used type of prime mover in a pump station is?
16.
Water main cleaning methods include.
17.
What type of map provides a clear picture of the entire water distribution system?
18.
The Total Coliform Rule is based on?
19.
A reaction of certain organic compounds and free chlorine can form?
20.
What type of water meter determines the total flow by multiplying the flow through meter by a factor?
21.
The normal pH range of surface and ground water is?
22.
Material Safety Data Sheets (MSDS) are required for?
23.
What is the ideal indicator for pathogens in the drinking water supply?
24.
What is a primary indicator of bearing failure on a water pump?
25.
An illness in infants known as methemoglobinemia, or blue baby syndrome, is attributed to?
