Chlorination Principles, Safety & Process ... Practice Quiz ... Test Your Knowledge Return to the Quiz Home Page by Clicking the Upper Right "x" on Your Browser
What is the weight ratio of chlorine gas relative to air?
Chlorine gas is 1.5 times heavier than air
Chlorine gas is 3.5 times heavier than air
Chlorine gas is 460 times heavier than air
Chlorine gas is 2.5 times heavier than air
What is the weight ratio of chlorine liquid relative to water?
Chlorine liquid is 1.5 times heavier than water
Chlorine liquid is 3.5 times heavier than water
Chlorine liquid is 460 times heavier than water
Chlorine liquid is 2.5 times heavier than water
One volume of liquid chlorine will expand to how many volumes of chlorine gas?
About 8.34
About 7.48
About 460
About 92.84
What concentration of chlorine can kill in a few short breaths?
15 ppm
30 ppm
100 ppm
1000 ppm
What should be used to identify a chlorine leak?
Liquid ammonia
Bleach
Fumes from ammonia
Water
What color cloud will appear when locating a chlorine leak with ammonia fumes?
Black
Yellow
White
Green
Which emergency repair kit is used for ton containers?
“A” Kit
“B” Kit
“C” Kit
“D” Kit
How does exposure to chlorine gas typically make a person react?
Very sleepy
Hungry
Excited
Dull
What equipment must be worn when changing chlorine containers and cylinders?
Dust mask
Self contained breathing apparatus
Hard hat
Gloves
In which part of the chlorine room should the leak detectors be located?
Near the ceiling
Suspended 10 feet off the floor
Near the floor
Outside of the chlorine room
What is the color of chlorine gas?
White
Greenish yellow
Blue
Black
What should be done if chlorine gets in your eyes?
Flush with oatmeal
Run briskly
Flush with water for 15 minutes
Call 411
Which position should you rotate a ton container if a leak develops?
With leak at bottom
With leak at top
With leak on the side
It does not matter
A chlorine leak will …
Always get worse
Never need to be repaired
Always rise to the ceiling
Release a blue cloud of smoke
Chlorine is classified by the Department of Transportation (DOT) as:
High explosive liquid
Non-toxic gas
Powered compound
Non-flammable compressed gas
What is the approximate weight of a full one-ton container of chlorine?
2,000 lbs
150 lbs
3,500 lbs
5,000 lbs
Which process signals are typically used in a compound loop control system?
Chlorine demand and residual
Chlorine residual and pH
Chlorine residual and flow
Chlorine supply and flow
Why is it best practice to open a ton container valve as little as possible … while ensuring the maximum allowable rate can be withdrawn?
To give the operator something to do
A ton container valve must be fully opened
To reduce the amount of escaping chlorine
To allow the valve to be closed quickly
Which term identifies the disinfection condition that occurs after all of the chlorine demand has been satisfied?
Combined residual
Breakpoint
Total residual
Mono-chloramines
How will low water flow affect the vacuum created in a gas injector?