Joe Jorgensen
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Joe Jorgensen
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Distribution 1/2 Quiz 1

Question 1 of 94

1

Chief operators never use past records to adjust treatment processes.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 94

1

All water comes in the form of precipitation.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 94

1

Many organisms that cause disease in humans originate with the fecal discharges of infected individuals.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 94

1

Rain water is pure

Select one of the following:

  • True
  • False

Explanation

Question 5 of 94

1

Groundwater is high in dissolved oxygen

Select one of the following:

  • True
  • False

Explanation

Question 6 of 94

1

The impact of a contaminant on surface water depends on the receiving water’s ability to assimilate contaminant

Select one of the following:

  • True
  • False

Explanation

Question 7 of 94

1

An Oligotrophic lake has low nutrient content.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 94

1

reatment plant operators do not need to keep informed of local, state and federal regulations.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 94

1

Local conditions have an influence on methods of managing lakes and reservoirs used for domestic water supplies.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 94

1

Precipitation is high in bacterial count.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 94

1

Color in water is objectionable mainly from the standpoint of health.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 94

1

The specific disease-producing organisms present in water are hard to identify

Select one of the following:

  • True
  • False

Explanation

Question 13 of 94

1

Temperature has no impact on the effectiveness of copper sulfate

Select one of the following:

  • True
  • False

Explanation

Question 14 of 94

1

Excessive Nitrate in drinking water can lead to cancer

Select one of the following:

  • True
  • False

Explanation

Question 15 of 94

1

The Interim Enhanced Surface Water Treatment Rule does not address Cryptosporidium.

Select one of the following:

  • True
  • False

Explanation

Question 16 of 94

1

Measuring biological oxygen demand can be used to indirectly measure the organic content of the water

Select one of the following:

  • True
  • False

Explanation

Question 17 of 94

1

The State’s regulatory program can be less stringent than the US EPA’s program.

Select one of the following:

  • True
  • False

Explanation

Question 18 of 94

1

Primary drinking water standards are not mandatory standards.

Select one of the following:

  • True
  • False

Explanation

Question 19 of 94

1

Stratification develops when a warm layer of water overlies a colder layer

Select one of the following:

  • True
  • False

Explanation

Question 20 of 94

1

Under the Total Coliform Rule the MCL is violated if 5% of the samples collected in a month are total coliform positive.

Select one of the following:

  • True
  • False

Explanation

Question 21 of 94

1

Porosity is the volume of space in a given amount of material.

Select one of the following:

  • True
  • False

Explanation

Question 22 of 94

1

Drawdown is the water level in a well when the pump is on moving water.

Select one of the following:

  • True
  • False

Explanation

Question 23 of 94

1

Suspended matter has little or no effect on copper sulfate treatment.

Select one of the following:

  • True
  • False

Explanation

Question 24 of 94

1

There is no minimum requirement for distribution chlorine residual under the SWTR.

Select one of the following:

  • True
  • False

Explanation

Question 25 of 94

1

The turbidity requirement under the Interim Enhanced Surface Water Treatment rule is <0.3 NTU

Select one of the following:

  • True
  • False

Explanation

Question 26 of 94

1

The ________ is the continuous exchange of water between the earth and the atmosphere.

Select one of the following:

  • Hydropneumatic cycle

  • Life cycle

  • Hydraulic gradient

  • Hydrologic cycle

Explanation

Question 27 of 94

1

What is the purpose of a water treatment plant?

Select one of the following:

  • To produce safe and pleasant drinking water

  • To produce water containing toxic substances

  • To produce water transmitting disease-causing organisms

  • To produce water with agreeable taste, odor or appearance

Explanation

Question 28 of 94

1

What does the size of a water treatment plant depend upon?

Select one of the following:

  • The water supply

  • Impurities in the water

  • Regulatory Factors

  • All of the above

Explanation

Question 29 of 94

1

All of the following factors influence the concentration of copper sulfate needed for effective control of algae blooms except?

Select one of the following:

  • Alkalinity

  • Water pH

  • Septic tanks

  • Water temperature

Explanation

Question 30 of 94

1

What is the purpose of the chemical coagulation process?

Select one of the following:

  • Cause very fine particles to clump together into larger particles

  • Filter out remaining suspended particles

  • Kill disease-causing organisms

  • Settle out larger suspended particles

Explanation

Question 31 of 94

1

Which constituent is not a chemical contaminant?

Select one of the following:

  • Inorganic

  • Volatile Organic

  • Synthetic Organic

  • Bacteria

Explanation

Question 32 of 94

1

A water-bearing geological formation is referred to as a(n)?

Select one of the following:

  • Aquifer

  • Aquarium

  • Water table

  • Bed rock

Explanation

Question 33 of 94

1

A 4 log removal rate is equal to what percent?

Select one of the following:

  • 90

  • 99

  • 99.9

  • 99.99

Explanation

Question 34 of 94

1

Whenever a chemical algae control program is started, when should monitoring be performed?

Select one of the following:

  • Before, during and after use of chemicals

  • Before visits by regulatory agencies

  • When staff are available

  • Whenever results are needed for analysis

Explanation

Question 35 of 94

1

Plants give off water vapor to the atmosphere through a process called?

Select one of the following:

  • Percolation

  • Evaporation

  • Transpiration

  • All of the Above

Explanation

Question 36 of 94

1

Organic matter combined with chlorine can create?

Select one of the following:

  • Septic Conditions

  • Trihalomethane's

  • Acidic water unfit for human consumption

  • Legionella

Explanation

Question 37 of 94

1

Which of the following does not influence surface runoff?

Select one of the following:

  • Rainfall intensity

  • Soil composition

  • Mineral content of the water

  • Vegetation covering the ground

Explanation

Question 38 of 94

1

Surface water runoff such as creeks and rivers collect water from an area of land towards one primary water course and is known as the?

Select one of the following:

  • Contributory

  • Pooling area

  • Watershed

  • Canyon

Explanation

Question 39 of 94

1

When using a river or stream as a water supply, what is a major concern?

Select one of the following:

  • Downstream usage

  • Spawning conditions

  • Groundwater quality

  • Upstream conditions

Explanation

Question 40 of 94

1

The area outward from the center of a well that is affected during pumping is called the?

Select one of the following:

  • Radius of influence

  • Zone of saturation

  • Water table

  • Impervious section

Explanation

Question 41 of 94

1

The Surface Water Treatment Rule requires the ________ and ________ of Giardia

Select one of the following:

  • Coagulation and sedimentation

  • Removal and inactivation

  • Disinfection and flocculation

  • Coagulation and disinfection

Explanation

Question 42 of 94

1

A direct filtration water treatment plant does not include?

Select one of the following:

  • Coagulation

  • Sedimentation

  • Filtration

  • Flocculation

Explanation

Question 43 of 94

1

What is the major type of problem caused by waste water contamination of a domestic water supply?

Select one of the following:

  • Loss of reservoir capacity

  • Scouring

  • Siltration

  • Nutrient loading

Explanation

Question 44 of 94

1

Why must operators constantly monitor raw water quality in a river?

Select one of the following:

  • To detect sudden pollutant loads

  • To inform the public in Consumer Confidence Reports

  • To justify lab workload and budget

  • To notify wastewater treatment plant operators

Explanation

Question 45 of 94

1

What are the primary responsibilities of Water Treatment Operators?

Select one of the following:

  • Produce pleasant drinking water

  • Produce safe drinking water

  • Protect health and well-being of the community

  • All of the above

Explanation

Question 46 of 94

1

Which is not a trophic state of a lake?

Select one of the following:

  • Oligotrophic

  • Endotrophic

  • Mesotrophic

  • Eutrophic

Explanation

Question 47 of 94

1

A disinfected water supply is one in which

Select one of the following:

  • All bacteria and viruses have been sterilized

  • All algae have been destroyed

  • All pathogenic organisms have been inactivated or destroyed

  • All of the above

Explanation

Question 48 of 94

1

Which of the following is not considered a point source discharge?

Select one of the following:

  • Wastewater discharge

  • Mine drainage

  • Storm water runoff

  • Industrial discharges

Explanation

Question 49 of 94

1

Which of the following is not a characteristic of Surface water?

Select one of the following:

  • Variable composition

  • High turbidity

  • Low dissolved oxygen

  • Low iron and manganese

Explanation

Question 50 of 94

1

What are the typical duties of Water treatment Operators?

Select one of the following:

  • Operate process equipment

  • Calibrate and maintain chemical dosages and applications

  • Maintain accurate records of operational data

  • All of the above

Explanation

Question 51 of 94

1

Drinking water standards are usually categorized as being related to either _______ or ________.

Select one of the following:

  • Drinkable / Non-Drinkable

  • Surface supplies / Ground supplies

  • Health / Aesthetics

  • Taste / Odor

Explanation

Question 52 of 94

1

Which is not a layer in a stratified lake?

Select one of the following:

  • Hydrolimnion

  • Mesolimnion

  • Hypolimnion

  • Epilimnion

Explanation

Question 53 of 94

1

The number of water samples that must be collected each month in a water distribution system is based on?

Select one of the following:

  • The size of the population served

  • The type of treatment given to the water

  • The source of the water

  • The size of the water mains

Explanation

Question 54 of 94

1

A system whose number of customers exceeds 25 and are full time residents would be categorized as a?

Select one of the following:

  • Non-transient, non-community water system

  • Community public water system

  • Potable water system

  • Transient water system

Explanation

Question 55 of 94

1

As a relate of algae blooms, what happens to organic matter within water supply reservoirs

Select one of the following:

  • Constant

  • Decrease

  • Increase

  • Unpredictable

Explanation

Question 56 of 94

1

In determining the purity of a water sample, it is usually tested for the presence of coliform bacteria because ____________.

Select one of the following:

  • It can be detected using a microscope

  • It can be done in the field

  • It is one of the disease-bearing bacteria

  • Its presence may indicate that the water has been contaminated

Explanation

Question 57 of 94

1

What is an example of a non-transient non-community water system?

Select one of the following:

  • Campground

  • Restaurant

  • School

  • Service station

Explanation

Question 58 of 94

1

The EPA has imposed drinking water regulations that cover many contaminants including?

Select one of the following:

  • General physical and general mineral characteristics

  • Organics, inorganic, and volatile organic compounds (VOCs)

  • Bacteriological and radiological characteristics

  • All of the above

Explanation

Question 59 of 94

1

Water has its greatest density at?

Select one of the following:

  • 40 degrees F

  • 29 degrees F

  • 39 degrees F

  • 35 degrees F

Explanation

Question 60 of 94

1

Which is not a bacterium?

Select one of the following:

  • Total Coliform

  • Giardia

  • E. Coli

  • Legionella

Explanation

Question 61 of 94

1

How do nutrients cause water quality problems in domestic water supply

Select one of the following:

  • Cause pathogen regrowth

  • Coagulate suspended particles

  • Stimulate growth of algae

  • Toxic to aquatic life

Explanation

Question 62 of 94

1

Methemoglobinemia is caused by?

Select one of the following:

  • Cancer

  • Giardia

  • Flouride

  • Nitrate

Explanation

Question 63 of 94

1

The "Total Coliform Rule" of the SDWA regulations requires the result of coliform testing to be given as?

Select one of the following:

  • MPN

  • Colony forming units (CFUs)

  • mg/l

  • Presence / Absence

Explanation

Question 64 of 94

1

The first time a distribution water sample is returned with a "positive" test result, one should?

Select one of the following:

  • Take another sample from the same location and other designated locations

  • Notify the public to boil the water

  • Take a sample from the source

  • Increase the chlorine dosage

Explanation

Question 65 of 94

1

Water shed protection does not include protective measures against?

Select one of the following:

  • Boating

  • Ice cutting

  • Clear cutting

  • Landfills

Explanation

Question 66 of 94

1

The algae that causes most of the problems in Southern California's lakes is called?

Select one of the following:

  • Blue-Green

  • Green

  • Diatoms

  • Oscillatoria Curviceps

Explanation

Question 67 of 94

1

Which is not a characteristic of an Oligotrophic lake?

Select one of the following:

  • Low nutrient content

  • Sediment accumulation on lake bottom

  • Little planktonic growth

  • Few aquatic plants

Explanation

Question 68 of 94

1

Which activity is the US Environmental Protection Agency (USEPA) not responsible for?

Select one of the following:

  • Writing water legislation

  • Setting maximum contaminant levels

  • Delegating primary enforcement duties to states

  • Monitors state activities

Explanation

Question 69 of 94

1

What is a potential cause of objectionable tastes and odor in a domestic water supply

Select one of the following:

  • Algae blooms

  • Birds

  • Coliforms

  • Hardness

Explanation

Question 70 of 94

1

What is the primary purpose of vegetation removal in areas where new reservoirs are to be formed?

Select one of the following:

  • To control potential fire hazard during filling

  • To create additional storage space

  • To eliminate causes of accidents to recreational users

  • To reduce the organic and nutrient loading in the reservoir

Explanation

Question 71 of 94

1

A water system must give a Tier 1 public notice for?

Select one of the following:

  • A violation of MCL for VOC's and SOC's

  • A violation of Total Coliform MCL

  • A failure to monitor

  • Failing to comply with variance or exemption

Explanation

Question 72 of 94

1

Which outcome is not a result of de-stratification and re-aeration?

Select one of the following:

  • Improved water quality

  • Reduced anaerobic conditions

  • Reduced turn-over events

  • Reduced recreational value

Explanation

Question 73 of 94

1

The surface water treatment rule requires which removal rate for giardia?

Select one of the following:

  • 2 log

  • 4 log

  • 1 log

  • 3 log

Explanation

Question 74 of 94

1

The Interim Enhanced Surface Water Treatment Rule requires the maintenance of a minimum distribution chlorine residual of?

Select one of the following:

  • 0.2 mg/l

  • 1.0 mg/l

  • 2.0 mg/l

  • 4.0 mg/l

Explanation

Question 75 of 94

1

Which item did the 1974 Safe Drinking Water Act not establish?

Select one of the following:

  • Primary Drinking water regulations

  • Monitoring of chemical and microbiological contaminants

  • Enforceable standards

  • Standards for chemical analysis

Explanation

Question 76 of 94

1

If algae blooms are a problem the operating agency should develop capabilities for obtaining what types of information?

Select one of the following:

  • Extent of algae blooms

  • Taste and odor conditions related to algae blooms

  • Water quality problems that develop as a result of the blooms

  • All of the above

Explanation

Question 77 of 94

1

The effectiveness of copper sulfate treatment is affected by?

Select one of the following:

  • Alkalinity

  • Suspended matter

  • Temperature

  • All of the above

Explanation

Question 78 of 94

1

What problems may be created for operators by algae blooms in domestic water supply reservoirs?

Select one of the following:

  • Increased hardness

  • Decreased carbon dioxide

  • Staining of clothes

  • Increased pH which reduces chlorination efficiency

Explanation

Question 79 of 94

1

Additional bacteriological monitoring must be conducted?

Select one of the following:

  • After construction of wells

  • After main installation or repair

  • After construction, repair or maintenance of storage facilities

  • All of the above

Explanation

Question 80 of 94

1

Algae blooms in lakes and reservoirs can be controlled by?

Select one of the following:

  • Adding nutrients

  • Reducing oxygen

  • Chemical methods

  • Shortening filter runs

Explanation

Question 81 of 94

1

The area in a lake where there is sufficient light and nutrients to cause aquatic growth is called the?

Select one of the following:

  • Littoral zone

  • Limnetic zone

  • Terrestrial zone

  • Benthic zone

Explanation

Question 82 of 94

1

The inactivation of pathogenic organisms is called?

Select one of the following:

  • Sterilization

  • Oxidation

  • Pasteurization

  • Disinfection

Explanation

Question 83 of 94

1

A change in the pH in a reservoir between the daytime and the night time is cause by?

Select one of the following:

  • Algae consuming CO2 during the day and releasing CO2 at nigh

  • Algae releasing CO2 during the day and consuming CO2 at night

  • The overfeeding of coffer sulfate

  • The decomposition of inorganic material

Explanation

Question 84 of 94

1

Which is not a major contributor of Nitrate contamination in groundwater?

Select one of the following:

  • Leaching from septic systems

  • Underground fuel tanks

  • Agriculture fertilizers

  • Livestock activities

Explanation

Question 85 of 94

1

Alkalinity can be defined as?

Select one of the following:

  • A measurement of the basic state of water

  • A measurement of the ability of water to buffer against changes in pH

  • A measurement of the amount of acid in the water

  • A measurement of the amount of hydrogen ions in the water

Explanation

Question 86 of 94

1

A treatment plant can be defined as?

Select one of the following:

  • Any process or set of processes that effect the physical, chemical or biological characteristics of water

  • Only those processes that constitute conventional water treatment

  • A place where operators can catch up on their sleep

  • Any process or set of processes that effect the biological characteristics of water

Explanation

Question 87 of 94

1

State Drinking Water Regulations can be found in?

Select one of the following:

  • 40 CFR part 141-149

  • Title 17 of the Code of State Regulations

  • Title 28 of the California Code of State Regulations

  • Title 22 of the California Code of State Regulations

Explanation

Question 88 of 94

1

Turbidity is the measurement of?

Select one of the following:

  • The concentration of bacteria in the water

  • The color of water measured in CFU

  • A measurement of inorganic material in the water

  • The amount of particulate material in the water

Explanation

Question 89 of 94

1

Compliance sampling must be reported to state by?

Select one of the following:

  • The 10th day of following month

  • Within 24 days

  • By the end of the month

  • Within 30 days

Explanation

Question 90 of 94

1

The zone in a lake that is considered "open water" is the?

Select one of the following:

  • Benthic Zone

  • Limentic Zone

  • Littoral Zone

  • Auto Zone

Explanation

Question 91 of 94

1

What is the volume in cubic feet of a circular clarifier 8 feet deep and 40 feet in diameter?

Select one of the following:

  • 10,048 ft3

  • 15,162 ft3

  • 17,038 ft3

  • 19,625 ft3

  • 22,608 ft3

Explanation

Question 92 of 94

1

What is the volume in gallons of a rectangular settling basin 8 feet deep, 12 feet wide, 50 feet long?

Select one of the following:

  • 47, 672 gallons

  • 35, 904 gallons

  • 43,084 gallons

  • 44,808 gallons

  • 4,800 gallons

Explanation

Question 93 of 94

1

How many pounds of copper sulfate will be needed to dose a reservoir with 0.6 mg/l copper? The reservoir volume is 20 million gallons. The copper sulfate is 25% copper. Assume the alkalinity of 40 mg/l.

Select one of the following:

  • 100 lbs.

  • 400 lbs.

  • 800 lbs.

  • 1,200 lbs.

  • 1,334 lbs.

Explanation

Question 94 of 94

1

A reservoir has an average length of 1196 ft and an average width of 961 ft, the alkalinity is 175 mg/l. How many pounds of CuSO4 is needed?

Select one of the following:

  • 6 lbs.

  • 18 lbs.

  • 20 lbs.

  • 50 lbs.

  • 143 lbs.

Explanation

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