Welcome to the 25 Question Water Distribution Practice Test.
Choose the best possible answer to the question.
1.
What type of valve dampens water hammer?
2.
How many feet must a ladder extend above the trench?
3.
The proper emergency kit for a chlorine tanker is?
4.
Water loss between 10-15% is accepted due to leaks, hydrant water theft, failing water meters, and illegal connections.
5.
Friction head loss can be calculated using tables based on?
6.
What type of relay is mostly used to detect a power loss and initiate a switchover to another power source?
7.
What type of joint is for steel piping?
8.
What type of pressure sensor uses a wire attached to a diaphram?
9.
What is the purpose of a vacuum regulator?
10.
Packing glands on a pump should always?
11.
Yellow hydrant body with an orange cap signals?
12.
Calcium hypochlorite comes in what form?
13.
A red hydrant cap or red fire hydrant means?
14.
A pro of chloramines is?
15.
What chemical can be added to the water system to sequester Iron and Manganese?
16.
An onsite sodium hypochlorite generation system creates liquid chlorine by combining?
17.
What type of water meter is based on the Doppler effect?
19.
Yellow hydrant body with an orange cap signals?
20.
The chlorine demand to maintain a residual jumps from 0.9mg/L to 3.0mg/L. What does this indicate?
21.
Hydraulics is the study of?
22.
Interior copper tubing is usually joined by?
23.
Who is the most responsible for your safety while on the job?
24.
If a body of water has high salinity and is warm, it will generally be high in dissolved oxygen.
25.
Identify which is a Cross-Connection hazard in a drinking water system.
