Treatment 1/2 Practice Test 2

Question

What is a pathogen?

Answer 1

Laurel Tryptose

Answer 2

Disease-causing microorganism

Answer 3

Elevated hardness

Answer 4

Increase in Cryptosporidium

Answer 5

Taste and odor problems

Answer 6

Corrosively

Answer 7

Hydraulic mixing

Answer 8

Mechanical mixing

Answer 9

Horizontal paddle wheel

Answer 10

Feed a filter-aid chemical to the filter influent

Answer 11

Increase plant flowrate

Answer 12

Backwash less frequently

Answer 13

Reduce speed of rapid mixer

Answer 14

Water hardness

Answer 15

Frequent starting and stopping

Answer 16

Cavitation

Answer 17

Minimize mud ball formation

Answer 18

Sodium hydroxide

Answer 19

Proper backwashing

Answer 20

Vulnerability assessment

Answer 21

An analysis to determine all potential water quality impacts to a proposed well

Answer 22

Survey conducted to find ways to reduce wastewater production

Answer 23

Investigation to determine optimal location for water sampling station

Answer 24

Settleable

Answer 25

Hypochlorous acid

Answer 26

Hyochlorite ion

Answer 27

Monochloramine

Answer 28

It reduces the complexity and cost of analysis

Answer 29

It is accurate in identifying the strain of virus

Answer 30

It provides detailed information about the type of pathogens in the sample

Answer 31

It provides the exact number of pathogens in the sample

Answer 32

Subdivision

Answer 33

Retirement community

Answer 34

Increase the pressure and flow of a fluid

Answer 35

Transmit input per from the driver to the impeller/s mounted on the shaft

Answer 36

Control the leakage of water along the pump shaft and prevent air from entering along the shaft when the pump is in a suction lift condition

Answer 37

Keep the shaft or rotor in correct alignment with the stationary parts under the action of radial and transverse (axial) loads

Answer 38

Unaffected by it

Answer 39

Creates instability of pH

Answer 40

One in which groundwater is under pressure by overlying and aquitards

Answer 41

A well in which water rises under pressure from a permeable stratum overlaid by impermeable rock

Answer 42

A location where groundwater naturally emerges from the Earth's subsurface in a defined flow and in an amount large enough to form a pool

Answer 43

One in which groundwater possesses a free surface open to the atmosphere

Answer 44

Water level when pump is not running

Answer 45

Water level when pump is running

Answer 46

The midpoint of the aquifer

Answer 47

The bottom of the zone of saturation

Answer 48

Alkalinity

Answer 49

Temperature

Answer 50

Ammonia hydroxide

Answer 51

Ammonia chloroform

Answer 52

Chloramine

Answer 53

Ammonium nitrate

Answer 54

The residual chlorine existing in water in chemical combination with ammonia or organic amines

Answer 55

The sum of free and combined chlorine

Answer 56

Inorganic chloramines

Answer 57

The concentration of residual chlorine in water which is present as dissolved gas, hypochlorous acid, and or hypochlorite

Answer 58

A thin distinct layer in a reservoir in which temperature changes more rapidly with depth than it does in the layers above or below

Answer 59

Epilimnion

Answer 60

Hypolimnion

Answer 61

Deepest layer

Answer 62

Public Utilities commission

Answer 63

Production of drinking water at a reasonable cost

Answer 64

Production of safe drinking water

Answer 65

Production of an aesthetically pleasing drinking water

Answer 66

Production of drinking water that does not leave scale deposits

Answer 67

Blue Baby Syndrome

Answer 68

Breathing problems

Answer 69

Cardiovascular effects, increased blood pressure and incidence of hypertension

Answer 70

Radius of influence

Answer 71

Pumping water level

Answer 72

Piezometric surface

Answer 73

MPN method

Answer 74

Colilert method

Answer 75

Inlet, Outlet, Settling, Sludge

Answer 76

Inlet, Outlet, Settling, Skimming

Answer 77

Inlet, Outlet, Settling, Baffles

Answer 78

Settling, Baffles, Skimming, Sludge

Answer 79

Nanofiltration

Answer 80

Conventional water treatment

Answer 81

Ion Exchange

Answer 82

Microfiltration

Answer 83

Organics, such as soil and leaves

Answer 84

Temperature

Answer 85

Shallow well

Answer 86

Well drawdown

Answer 87

Safe yield

Answer 88

Cone of depression

Answer 89

Specific yield

Answer 90

Sodium hypochlorite

Answer 91

Chloramine

Answer 92

Chlorine dose + Chlorine residual

Answer 93

Chlorine dose - Chlorine residual

Answer 94

Chlorine dose X Chlorine residual

Answer 95

The amount of chlorine required to linger in the pipeline

Answer 96

Fallen leaves

Answer 97

Positive charge on the surface

Answer 98

Negative charge on the surface

Answer 99

Neutral charge on the surface

Answer 100

Cationic attributes

Answer 101

Electrical problems in the control panel

Answer 102

Negative electrical charge on colloid

Answer 103

Electrical charge neutralized by alum

Answer 104

Shorter settling time in basin

Answer 105

Low chlorine concentration

Answer 106

Presence of THM

Answer 107

Temperature

Answer 108

Clear under drain

Answer 109

Expand filter media

Answer 110

Prevent loss of media

Answer 111

Break-up mud balls

Answer 112

Near agricultural land

Answer 113

In very deep wells

Answer 114

Near military bases

Answer 115

Near swamps

Answer 116

Constituents is sucked in

Answer 117

Constituents sticking to the surface of a substance

Answer 118

Molecule is converted from aqueous phase to solid phase

Answer 119

Contaminant breaks up into smaller particles

Answer 120

Coagulation

Answer 121

Disinfection

Answer 122

Flocculation

Answer 123

Sedimentation and filtration

Answer 124

Sodium hypochlorite

Answer 125

Chlorine gas

Answer 126

Chloramines

Answer 127

Calcium hypochlorite

Answer 128

Uses a presence and absence approach

Answer 129

Compliance is determined on a monthly basis

Answer 130

Each total coliform-positive routine sample must be tested for the presence of fecal coliforms

Answer 131

Smaller systems that collect fewer than 40 samples cannot have coliform positive results in more than 2 samples per month

Answer 132

Use it as the point of connection

Answer 133

Always remove it before use

Answer 134

Never remove it

Answer 135

Should be removed during maintenance

Answer 136

Taste and odor problems

Answer 137

Sampling location, date, and time

Answer 138

Concentration of all constituents

Answer 139

Probable cause of contamination

Answer 140

Type of treatment used at the plant

Answer 141

Filtered water must be less than or equal to 0.2 NTU in 95% of monthly measurements

Answer 142

Filtered water must be less than or equal to 1.0 NTU in 95% of monthly measurements

Answer 143

Filtered water must be less than or equal to 0.5 NTU in 95% of monthly measurements

Answer 144

Filtered water must be less than or equal to 0.3 NTU in 95% of monthly measurements

Answer 145

Formation of THMs

Answer 146

Difficult to procure

Answer 147

Most dangerous form of disinfectant to store at plant

Answer 148

Citric acid

Answer 149

Carbon dioxide

Answer 150

Sulfuric acid

Answer 151

Mix coagulants with raw water

Answer 152

Add chlorine prior to filtration

Answer 153

Slowly stir water to bring smaller flocs together to form larger ones

Answer 154

Oxidize mineral

Answer 155

Epilimnion

Answer 156

Thermocline

Answer 157

Hypolimnion

Answer 158

Metalimnion

Answer 159

Brownish water

Answer 160

Blackish water

Answer 161

Reddish water

Answer 162

Applies to all public water systems using surface water sources or ground water sources under the direct influence of surface water

Answer 163

Requires most water systems to filter and disinfect water from surface water sources or ground water under direct influence

Answer 164

Establishes maximum contaminant level goals (MCLGs) for viruses, bacteria, and Giardia lamblia

Answer 165

All water systems are allowed to use disinfection only for surface water sources that meet criteria for water quality and watershed protection

Answer 166

Greenish yellow color

Answer 167

Blue color

Answer 168

Orange color

Answer 169

Brown color

Answer 170

Each total coliform-positive routine sample must be tested for the presence of fecal coliform or E. coli

Answer 171

If any routine sample is total coliform-positive, repeat samples are required.

Answer 172

Establishes a maximum contaminant level (MCL) based on the presence of absence of total coliforms

Answer 173

Monthly sampling requirements are not based on population served

Answer 174

Increase the chlorination before filtration

Answer 175

Increase precursors

Answer 176

Eliminate or reduce chlorination before the filters

Answer 177

Increase temperature

Answer 178

Involves storage of toxic chemicals

Answer 179

High energy cost

Answer 180

Longer contact time required

Answer 181

Confined and unconfined

Answer 182

Static and pumping

Answer 183

Cationic and anionic

Answer 184

Eutrophic and oligotrophic

Answer 185

Blue Baby Syndrome

Answer 186

High Blood Pressure

Answer 187

Leads to kidney disease

Answer 188

THM formation

Answer 189

Forms mudballs

Answer 190

Flushes some media into spent backwash water

Answer 191

Increases build-up (headloss)

Answer 192

Forms THMs

Answer 193

Chlorine is destroyed by reducing compound

Answer 194

Formation of chloroganics

Answer 195

Chlororganics partly destroyed

Answer 196

Free available residual chlorine begin to form

Answer 197

Absorption

Answer 198

Disinfection

Answer 199

Adsorption

Answer 200

Filtration

Answer 201

Federal EPA

Answer 202

Unaffected

Answer 203

More breakthroughs

Answer 204

Carcinogens

Answer 205

Reddish brown

Answer 206

Stir flocs together

Answer 207

Oxidize iron and manganese

Answer 208

Neutralize negative charge on colloids

Answer 209

Pre-chlorination

Answer 210

Eliminate THMs

Answer 211

To minimize liquid chemical storage at plant

Answer 212

To eliminate the usage of free chlorine at the plant

Answer 213

Decaying plants

Answer 214

Animal matter

Answer 215

Soluble calcium

Answer 216

Multiple Tube Fermentation method

Answer 217

Membrane Filter Method

Answer 218

Colilert Method

Answer 219

Publicly or privately owned water system that has at least 15 service connections, or regularly serves and average of at least 25 people daily at least 60 days per year

Answer 220

Publicly or privately owned water system that has at least 25 service connections, or regularly serves and average of at least 25 people daily at least 60 days per year

Answer 221

Publicly or privately owned water system that has at least 35 service connections, or regularly serves and average of at least 25 people daily at least 60 days per year

Answer 222

Publicly or privately owned water system that has at least 45 service connections, or regularly serves and average of at least 25 people daily at least 60 days per year

Answer 223

Membrane Filter Method

Answer 224

Multiple Tube Fermentation method

Answer 225

Colisure Method

Answer 226

MF Method - Escherichia coli

Answer 227

Intake, Coagulation, Flocculation, Filtration, Sedimentation, Disinfection

Answer 228

Intake, Flocculation, Coagulation, Filtration, Sedimentation, Disinfection

Answer 229

Intake, Coagulation, Flocculation, Sedimentation, Filtration, Disinfection

Answer 230

Intake, Flocculation, Sedimentation, Coagulation, Filtration, Disinfection

Answer 231

Excessive increase in floc size

Answer 232

Scaling becomes a problem

Answer 233

Worsens DBP problem

Answer 234

Some colloids may repel each other

Answer 235

Time proportional

Answer 236

Sample taken on a one time basis without consideration of flow or time

Answer 237

Flow proportional

Answer 238

A collection of numerous individual discrete samples taken at regular intervals over a period of time

Answer 239

Headloss decreases

Answer 240

Headloss is unaffected

Answer 241

Headloss increases

Answer 242

Headless goes to zero

Answer 243

When source water is low in turbidity, color, and coliform

Answer 244

When source water is low in iron and manganese

Answer 245

When source water is low in nitrates

Answer 246

When source water has an ideal pH and temperature

Answer 247

3 cylinders

Answer 248

2 cylinders

Answer 249

1 cylinder

Answer 250

4 cylinders

Answer 251

47.6 gpm/ft

Answer 252

56.7 gpm/ft

Answer 253

65.1 gpm/ft

Answer 254

3.6 gallons

Answer 255

1.7 gallons

Answer 256

13.6 gallons

Answer 257

4.2 gallons

Answer 258

1.9 GPM/sq. ft.

Answer 259

4.2 GPM/sq. ft.

Answer 260

3.5 GPM/sq. ft.

Answer 261

2.4 GPM/sq. ft.

Answer 262

0.24 GPM/sq. ft.

Answer 263

0.51 GPM/sq. ft.

Answer 264

0.68 GPM/sq. ft.

Answer 265

041 GPM/sq. ft.

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Treatment 1/2 Practice Test 2

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