B an oxidizer - Study guides, Class notes & Summaries
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WasteWater Operator class C Exam Practice Review Exam With Solved Solutions 2024.
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When Chlorine is combined with water what type of pipe should be used? 
 
A. Ductile iron 
B. Asbestos concrete 
C. PVC 
D. Carbon Steel - Answer C. PVC 
 
A good settling sludge would consist of what type of protozoa? 
 
A. Rotifers and nematodes 
B. Amoebas and Flagellates 
C. Stalked ciliates and mastagoria 
D. Free swimmers and stalk ciliates - Answer D. Free swimmers and stalk ciliates 
 
What is Phenolphylein used for in titration 
 
A. Oxidizer 
B. Indicator 
C. Acid reducer to lower ...
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WasteWater Operator class C exam practice review questions with answers
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WasteWater Operator class C exam practice review questions with answers 
 
When Chlorine is combined with water what type of pipe should be used? 
 
A. Ductile iron 
B. Asbestos concrete 
C. PVC 
D. Carbon Steel - ANS C. PVC 
 
A good settling sludge would consist of what type of protozoa? 
 
A. Rotifers and nematodes 
B. Amoebas and Flagellates 
C. Stalked ciliates and mastagoria 
D. Free swimmers and stalk ciliates - ANS D. Free swimmers and stalk ciliates 
 
What is Phenolphylein use...
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Waste Water Operator class C exam 2024/2025 Review Questions and Answers correct verified
- Exam (elaborations) • 17 pages • 2024
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Waste Water Operator class C exam 
2024/2025 Review Questions and 
Answers correct verified 
When Chlorine is combined with water what type of pipe should be used? 
A. Ductile iron 
B. Asbestos concrete 
C. PVC 
D. Carbon Steel - CORRECT ANSWER-C. PVC 
A good settling sludge would consist of what type of protozoa? 
A. Rotifers and nematodes 
B. Amoebas and Flagellates 
C. Stalked ciliates and mastagoria 
D. Free swimmers and stalk ciliates - CORRECT ANSWER-D. Free swimmers and stalk 
ciliates...
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Waste Water Operator class C exam 2024/2025 Review Questions and Answers correct verified
- Exam (elaborations) • 17 pages • 2024
- Available in package deal
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- $8.49
- + learn more
When Chlorine is combined with water what type of pipe should be used? 
A. Ductile iron 
B. Asbestos concrete 
C. PVC 
D. Carbon Steel - CORRECT ANSWER-C. PVC 
A good settling sludge would consist of what type of protozoa? 
A. Rotifers and nematodes 
B. Amoebas and Flagellates 
C. Stalked ciliates and mastagoria 
D. Free swimmers and stalk ciliates - CORRECT ANSWER-D. Free swimmers and stalk 
ciliates 
What is Phenolphylein used for in titration 
A. Oxidizer 
B. Indicator 
C. Acid reducer to lo...
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OHST Study Material (Questions & Answers) Rated 100% Correct!!
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A 1,000 LB load is lifted with a two leg sling with that are at 30 degrees angle with respect to the load. 
The stress on each leg of the sling is - 1000 lbs 
A business metric is best described as what kind this safety performance benchmark - Lagging 
indicator 
A chemical explosion requires oxidizer, fuel, ignition source and which of the following - 
confinement 
A description of the company's current performance and what the acheive in the future is called a - 
Gap analysis 
A dust sample w...
Too much month left at the end of the money?
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CPO Test Latest Update 2024!!
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CPO Test Latest Update 2024!! 
to lower pH add: - ANSWER muriatic acid 
carbon dioxide 
 
to increase pH add: - ANSWER sodium carbonate 
sodium hydroxide 
sodium sesquicarbonate 
 
the acceptable pH range is: 
a) 6.8-7.0 
b) 7.2-7.8 
c) 7.0-7.4 
d) none of the above - ANSWER b) 7.2-7.8 
 
the ideal pH range is: 
a) 7.4-7.6 
b) 7.8-8.0 
c) 6.8-7.4 - ANSWER a) 7.4-7.6 
 
free chlorine is a(n): 
a) oxidizer 
b) stabilizer 
c) active disinfectant - ANSWER c) active disinfectant 
 
it is common pract...
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Chapter Test 4 (IFSTA 7th Edition) Fire Dynamics Questions & Answers Already Passed
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Chapter Test 4 (IFSTA 7th Edition) Fire Dynamics 
Questions & Answers Already Passed 
Fires involve a heat-producing chemical reaction between fuel and: (117) [4.3.11] 
A. a catalyst. 
B. an oxidizer. 
C. free radicals. 
D. a reducing agent. - Correct B. an oxidizer 
When a substance changes from one type of matter into another, such as two or 
more substances combining to form compounds, the substance undergoes a: (118) 
[4.3.11] 
A. dissolution. 
B. metamorphosis. 
C. chemical reaction. 
D. ph...
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IFSTA 10th Edition Test 4 Exam With Best Solutions
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IFSTA 10th Edition Test 4 Exam 
With Best Solutions 
 
What occurs when a mixture of fuel and oxygen encounter an external heat source with 
sufficient heat or thermal energy to start the combustion reaction? (120) [4.3.11] 
A. Autoignition 
B. Piloted ignition 
C. Kinetic ignition 
D. Sustained ignition - Answer B. Piloted ignition 
The minimum temperature at which a fuel in the air must be heated in order to start selfsustained combustion is known as the: (122) [4.3.11] 
A. autoignition tempe...
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WasteWater Operator class C exam practice review Rated 100% Correct!!
- Exam (elaborations) • 26 pages • 2023
- Available in package deal
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- $9.59
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When Chlorine is combined with water what type of pipe should be used? 
A. Ductile iron 
B. Asbestos concrete 
C. PVC 
D. Carbon Steel - C. PVC 
A good settling sludge would consist of what type of protozoa? 
A. Rotifers and nematodes 
B. Amoebas and Flagellates 
C. Stalked ciliates and mastagoria 
D. Free swimmers and stalk ciliates - D. Free swimmers and stalk ciliates 
What is Phenolphylein used for in titration 
A. Oxidizer 
B. Indicator 
C. Acid reducer to lower pH 
D. Applicator - B. Indic...
-
WasteWater Operator class C exam practice review | 100 Questions and Answers(A+ Solution guide)
- Exam (elaborations) • 26 pages • 2023
- Available in package deal
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- $8.49
- + learn more
When Chlorine is combined with water what type of pipe should be used? 
A. Ductile iron 
B. Asbestos concrete 
C. PVC 
D. Carbon Steel - C. PVC 
A good settling sludge would consist of what type of protozoa? 
A. Rotifers and nematodes 
B. Amoebas and Flagellates 
C. Stalked ciliates and mastagoria 
D. Free swimmers and stalk ciliates - D. Free swimmers and stalk ciliates 
What is Phenolphylein used for in titration 
A. Oxidizer 
B. Indicator 
C. Acid reducer to lower pH 
D. Applicator - B. Indic...
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