Textbook Assignment: Water Treatment (continued) and Maintenance of Water Treatment
Equipment, chapters 7 and 8, pages 7-26 through 8-31.
What water treatment control test is
used to find the coagulation of water to
remove color and turbidity?
4. Taste and odor
How many times do you repeat the
steps of the jar test?
1. Until satisfactory results are
2. Two times
3. Three times
4. Four times
There is a total of how many steps
required to perform the turbidity test of
water with special instruments?
What step in the instrument procedure
for measuring the turbidity in a sample
of water determines the turbidity
content of the sample?
1. Inserting the glass plunger in the
2. Placing the tube in the instrument
3. Relating the dial reading on the
instrument to the instrument chart
4. Seeing a uniform field through the
Data should be recorded on the Potable
Water Supply and Distribution
Operating Record at what intervals?
Activity files concerning the operating
records for Potable Water Supply and
Potable Water Treatment should
include the current year and how many
What type of chlorinator dissolves the
gas in a minor flow of water and
injects the solution into the flow that is
to be treated?
1. Direct feed
2. Solution feed
3. Automatic feed
4. Semiautomatic feed
What types of diaphragms are used in
chlorinators to control chlorine feed?
1. Water and mechanical
2. Automatic and water
3. Mechanical and automatic
4. Semiautomatic and water