WATER TREATMENT CHAPTER 2

Question 1

THE ENERGY CRISIS AND WATER SHORTAGES ARE LINKED TOGETHER

Answer 1

TRUE

Question 2

BOTH ANIMAL LIFE AND PLANT LIFE DEPEND ON WATER FOR SURVIVAL

Answer 2

TRUE

Question 3

LARGE CITIES MAY OBTAIN THEIR RAW WATER SUPPLY FROM A STREAM OR RIVER INTO WHICH THE TREATED WASTEWATER FROM AN UPSTREAM CITY HAS BEEN DISCHARGED

Answer 3

TRUE

Question 4

LABORATORIES CAN EASILY DETECT IN WATER SAMPLES MOST OF THE NEW CHEMICALS THAT ARE DEVELOPED EACH YEAR

Answer 4

FALSE

Question 5

ACID RAIN IS FORMED BY THE EVAPORATION OF ACED WATERS FROM MINE DRAINAGE

Answer 5

FALSE

Question 6

PRECIPITATION IS HIGH IN BACTERIAL COUNT

Answer 6

FALSE

Question 7

COLOR IN WATER IS OBJECTIONAL MAINLY FROM THE STANDPOINT OF HEALTH

Answer 7

FALSE

Question 8

THE SPECIFIC DISEASE PRODUCING ORGANISM PRESENT IN WATER ARE EASILY IDENTIFIED

Answer 8

FALSE

Question 9

CLEAR WATER IS USUALLY SAFE TO DRINK

Answer 9

FALSE

Question 10

RUNNING WATER USUALLY PURIFIES ITSELF TO DRINKING WATER QUALITY WITHIN A REASONABLE DISTANCE

Answer 10

FALSE

Question 11

SOURCES OF CONTAMINATION OF WATER SUPPLIES INCLUDE

Answer 11

(ALL)
-ACID RAIN
-INDUSTRIAL WASTE CHANGES
-INTRUSION OF SEA WATER INTO GROUND WATER BASINS
-MINERAL RESIDUES FROM IRRIGATION
-SALT FROM DE-ICING HIGHWAYS

Question 12

SOURCES OF GROUNDWATER CONTAMINATION INCLUDE

Answer 12

(ALL)
-AGRICULTURAL DRAINAGE
-SEA WATER INTRUSION
-SEEPAGE FROM SEPTIC TANK LEACHING SYSTEMS
-SEEPAGE FROM IMPROPER DISPOSAL OF HAZARDOUS WASTE
-SURFACE RUNOFF INTO WELLS

Question 13

THE BASIC TYPES OF WATER RIGHTS ARE CALLED

Answer 13

-APPROPRIATIVE
-PRESCRIPTIVE
-RIPARIAN

Question 14

FOR PURPOSES OF DISCUSSION SURFACE WATER SUPPLIES MAY BE DIVIDED INTO WHICH OF THE FOLLOWING CLASSES?

Answer 14

-LAKES
-RESEVOIRS
-RIVERS

Question 15

DISEASES THAT MAY BE SPREAD THROUGH A WATER SUPPLY INCLUDE

Answer 15

-DYSENTERY
-GIARDASIS
-TYPHOID FEVER

Question 16

TYPICAL USES OF RECLAIMED WATER INCLUDE

Answer 16

-CROP IRRIGATION
-INDUSTRIAL REUSE
-LANDSCAPE IMPOUNDMENTS
-LANDSCAPE IRRIGATION

Question 17

WHEN CONDUCTING A SANITARY SURVEY WHICH OF THE FOLLOWING ITEMS WOULD PERTAIN TO A GROUND WATER SUPPLY

Answer 17

ALL

Question 18

WHEN CONDUCTING A SANITARY SURVEY WHICH OF THE FOLLOWING ITEMS WOULD PERTAIN TO A WATER SUPPLY IN A LAKE

Answer 18

ALL

Question 19

ITEMS REQUIRING PROTECTIVE MEASURES IN WATERSHED THAT SERVE AS THE SOURCE OF WATER SUPPLY INCLUDE CONTROL OF

Answer 19

ALL

Question 20

WHICH TYPES OF SUBSTANCES MAY ALTER THE QUALITY OF WATER AS IT MOVES OVER OR BELOW THE SURFACE OF THE EARTH

Answer 20

-BIOLOGICAL
-CHEMICAL
-PHYSICAL
-RADIOLOGICAL

Question 21

TURBIDITY IN WATER RESULTS FROM THE PRESENCE OF

Answer 21

-FINELY DIVIDED ORGANIC MATERIAL
-PLANKTON
-SUSPENDED MATERIAL

Question 22

MOST INDIVIDUALS FIND THAT WATER HAVING A TEMP BETWEEN ______ IS MOST PALATABLE

Answer 22

50 AND 6O DEGREES

Question 23

THE PROCESS BY WHICH WATER VAPOR IS RELEASED TO THE ATMOSPHERE BY LIVING PLANTS IS CALLED

Answer 23

TRANSPIRATION

Question 24

WATER QUALITY CHARACTERISTICS OF SURFACE WATER SUPPLIES INCLUDE

Answer 24

-SUSPENDED SOLIDS
-TURBIDITY

Question 25

LAKES AND RESERVOIRS ARE SUSCEPTIBLE TO ALGAL BLOOMS WHEN

Answer 25

-SUFFICIENT NUTRIENTS ARE AVAILABLE -TEMP IS RIGHT

Question 26

SOURCES OF ODORS IN DRINKING WATER INCLUDE

Answer 26

-GROWTHS OF ALGAE -HYDROGEN SULFIDE

Question 27

A PUBLIC WATER SYSTEM ACCORDING TO THE SDWA INCLUDES ALL PUBLIC OR PRIVATELY OWNED SYSTEMS THAT

Answer 27

-HAVE ATLEAST 15 SERVICES CONNECTIONS WHICH ARE USED AT LEAST 60 DAYS OUT OF THE YEAR -SERVE AN AVERAGE OF AT LEAST 25 PEOPLE AT LEAST 60 DAYS OUT OF THE YEAR

Question 28

THE BASIC OBJECTIVES IN THE OPERATION OF A WATER TREATMENT PLANT INCLUDE

Answer 28

-PRODUCTION OF A SAFE DRINKING WATER -PRODUCTION OF AN AESTHETICALLY PLEASING DRINKING WATER -PRODUCTION OF DRINKING WATER AT A REASONABLE COST

Question 29

BEFORE THE INTAKE FOR WATER SUPPLY IS LOCATED IN A RIVER OR STREAM A CAREFUL STUDY MUST BE MADE OF THE

Answer 29

-DEGREE OF STREAM SOURCE -SETTLING OUT OF SILT -STREAM BOTTOM

Question 30

THE AMBER COLOR IN WATER COULD INDICATE THE PRESENCE OF

Answer 30

-ACID WATER FROM MINE DRAINAGE -HUMIC SUBSTANCES

Question 31

DETERMINE THE CHLORINATOR SETTING IN POUNDS PER DAY CHLORINATOR FEED RATE,LBS/DAY=(2MGO)(3mg/L)(8.34LBS/GAL)

Answer 31

50 LBS/DAY

Question 32

ESTIMATE THE CHORINE DOSE TO A DRINKING WATER IN mg/L mg/L=14LBS/DAY DIVIDED BY (.933MGD)(8.34LBS/GAL)

Answer 32

1.8mg/L