Welcome to the 25 Question Water Distribution Practice Test.
Choose the best possible answer to the question.
1.
What is the minimum contact time when disinfecting water mains using the chlorine slug method?
2.
The upper layer in a reservoir is the?
3.
High levels of Iron & Manganese in the drinking water will cause?
4.
What is the MCLG for coliform bacteria?
5.
Define the term drawdown?
6.
The frequent starting of distribution pumps is a possible indication of?
7.
An onsite sodium hypochlorite generation system creates liquid chlorine by combining?
8.
Critical safeguard(s) for a water distribution system are?
9.
What is used on the outside joint space of a steel cylinder concrete in order to protect the joint rings from external corrosion?
10.
When digging a trench to install or repair a water main, where does the soil go?
11.
What is the steel specimen inserted into water mains to measure the corrosiveness of the water is?
12.
How often should a ladder be placed in a trench?
13.
A water system should monitor the water source for?
14.
What type of fires involve energized electrical equipment such as starters, breakers, and motors?
15.
Calcium hypochlorite comes in what form?
16.
What is the pneumatic standard range?
17.
The proper emergency kit for a TON chlorine cylinder is?
18.
How often should pump bearings be re-greased?
19.
Algae in a water reservoir can cause?
20.
The profundal zone of a lake is?
21.
How often should you change the fusible plug on a 150lb chlorine cylinder?
22.
The middle layer is a reservoir is?
23.
Head loss in a water distribution system depends on
24.
What is the term for water samples collected at regular intervals and combined in equal volume with each other?
25.
What is an appropriative water right?
