WATER TREATMENT 1 ADEQ STUDY GUIDE 2025: 300+
HIGH-YIELD QUESTIONS AND 100% VERIFIED
ANSWERS| GRADED A+|GUARANTEED PASS!!
_______ is a major concern of wells located in costal areas.
A. Dissolved solids
B. Tourism contamination
C. Percolation
D. Saltwater intrusion
- answer-D. Saltwater intrusion
A 1-ton cylinder will have how many fusible plugs?
A. 6
B. 4
C. 2
D. 1
- answer-A. 6
A 10 buffer tends to
A. Raise pH
B. Change pH to 7
C. Lower pH
D. Keep pH the same
- answer-A. Raise pH
A 3-log removal is a __________ % reduction.
A. 90%
B. 99%
C. 99.9%
- answer-C. 99.9%
A coupling connects
A. The lantern ring to the packing gland
B. The impeller to the wear rings
C. The motor to the pump
,D. The thermal overload to the starter
- answer-C. The motor to the pump
A dirty air filter on a centrifugal blower can cause:
A. Overheating
B. Cavitation
C. Vibration
D. All of the above
- answer-D. All of the above
A fusible plug melts at:
A. 120 F
B. 158 F
C. 188 F
D. 212
- answer-B. 158 F
A gas chlorinator rotameter reading is:
A. Milligrams per liter
B. Cubic feet per day
C. Pounds per day
- answer-C. Pounds per day
A low vacuum in the system can be caused by:
A. Dirty rotameter
B. Clogged injector
C. Relief valve open
- answer-B. Clogged injector
A mixture of water samples taken during a 24 hour period is called a
A. Continuous sample
B. A beaker sample
C. Grab a sample
D. Composite sample
- answer-D. Composite sample
A pneumatic level sensing system uses:
A. A float and tape
B. Electrodes
C. A bubbler and pressure transducer
,D. None of the above
- answer-C. A bubbler and pressure transducer
A public water system serves a population greater than or equal to:
A. 25
B. 50
C. 100
- answer-A. 25
A pump is leaking excessively around the packing gland. An operator should
A. Call the pump representative
B. Replace packing gland
C. Replace pump shaft
D. Tighten the packing gland
- answer-D. Tighten the packing gland
A standby attendant for a confined space entry must:
A. Be in visual and verbal contact with the entrants
B. Be able to communicate with emergency responders in case of an accident
C. Terminate the entry if problems develop
D. All of the above
- answer-D. All of the above
A turbidimeter measures
A. Dissolved solids
B. Disinfection byproducts
C. Suspended solids
D. Saturated gases
- answer-C. Suspended solids
AED's and fire extinguishers should be checked
A. Daily
B. Monthly
C. Quarterly
D. Annually
- answer-B. Monthly
Air binding in a filter is caused by:
A. Filtering too long
B. Filtering too slow
, C. Filtering with too much head loss
D. Changes in specific gravity
- answer-C. Filtering with too much head loss
Air trapped in the volute of the pump will cause:
A. Cavitation
B. Air locking
C. Loss of prime
D. All of the above
- answer-B. Air locking
All kinds of tastes and odors can be removed using:
A. Activated Carbon
B. Oxidizing Chemicals
C. Aeration
D. Polyphosphates
- answer-B. Oxidizing Chemicals
All valves at water treatment plant should be exercised at least every
A. 6 months
B. Year
C. 2 years
D. 5 years
- answer-B. Year
Alum can be used to precipitate organic compounds at a pH level of:
A. 3.0
B. 4.5
C. 6.0
D. 9
- answer-C. 6.0
Alum works best when the pH is:
A. 3.5-5.5
B. 6.5-7.0
C. 8.0-8.3
D. 9.0-10.5
- answer-B. 6.5-7.0
HIGH-YIELD QUESTIONS AND 100% VERIFIED
ANSWERS| GRADED A+|GUARANTEED PASS!!
_______ is a major concern of wells located in costal areas.
A. Dissolved solids
B. Tourism contamination
C. Percolation
D. Saltwater intrusion
- answer-D. Saltwater intrusion
A 1-ton cylinder will have how many fusible plugs?
A. 6
B. 4
C. 2
D. 1
- answer-A. 6
A 10 buffer tends to
A. Raise pH
B. Change pH to 7
C. Lower pH
D. Keep pH the same
- answer-A. Raise pH
A 3-log removal is a __________ % reduction.
A. 90%
B. 99%
C. 99.9%
- answer-C. 99.9%
A coupling connects
A. The lantern ring to the packing gland
B. The impeller to the wear rings
C. The motor to the pump
,D. The thermal overload to the starter
- answer-C. The motor to the pump
A dirty air filter on a centrifugal blower can cause:
A. Overheating
B. Cavitation
C. Vibration
D. All of the above
- answer-D. All of the above
A fusible plug melts at:
A. 120 F
B. 158 F
C. 188 F
D. 212
- answer-B. 158 F
A gas chlorinator rotameter reading is:
A. Milligrams per liter
B. Cubic feet per day
C. Pounds per day
- answer-C. Pounds per day
A low vacuum in the system can be caused by:
A. Dirty rotameter
B. Clogged injector
C. Relief valve open
- answer-B. Clogged injector
A mixture of water samples taken during a 24 hour period is called a
A. Continuous sample
B. A beaker sample
C. Grab a sample
D. Composite sample
- answer-D. Composite sample
A pneumatic level sensing system uses:
A. A float and tape
B. Electrodes
C. A bubbler and pressure transducer
,D. None of the above
- answer-C. A bubbler and pressure transducer
A public water system serves a population greater than or equal to:
A. 25
B. 50
C. 100
- answer-A. 25
A pump is leaking excessively around the packing gland. An operator should
A. Call the pump representative
B. Replace packing gland
C. Replace pump shaft
D. Tighten the packing gland
- answer-D. Tighten the packing gland
A standby attendant for a confined space entry must:
A. Be in visual and verbal contact with the entrants
B. Be able to communicate with emergency responders in case of an accident
C. Terminate the entry if problems develop
D. All of the above
- answer-D. All of the above
A turbidimeter measures
A. Dissolved solids
B. Disinfection byproducts
C. Suspended solids
D. Saturated gases
- answer-C. Suspended solids
AED's and fire extinguishers should be checked
A. Daily
B. Monthly
C. Quarterly
D. Annually
- answer-B. Monthly
Air binding in a filter is caused by:
A. Filtering too long
B. Filtering too slow
, C. Filtering with too much head loss
D. Changes in specific gravity
- answer-C. Filtering with too much head loss
Air trapped in the volute of the pump will cause:
A. Cavitation
B. Air locking
C. Loss of prime
D. All of the above
- answer-B. Air locking
All kinds of tastes and odors can be removed using:
A. Activated Carbon
B. Oxidizing Chemicals
C. Aeration
D. Polyphosphates
- answer-B. Oxidizing Chemicals
All valves at water treatment plant should be exercised at least every
A. 6 months
B. Year
C. 2 years
D. 5 years
- answer-B. Year
Alum can be used to precipitate organic compounds at a pH level of:
A. 3.0
B. 4.5
C. 6.0
D. 9
- answer-C. 6.0
Alum works best when the pH is:
A. 3.5-5.5
B. 6.5-7.0
C. 8.0-8.3
D. 9.0-10.5
- answer-B. 6.5-7.0
