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WATER TREATMENT SAC STATE PRACTICE EXAM 2024 QUESTIONS WITH COMPLETE SOLUTIONS!!
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WATER TREATMENT SAC STATE PRACTICE EXAM 2024 QUESTIONS WITH COMPLETE SOLUTIONS!!
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WATER TREATMENTSAC STATE PRACTICE
EXAM 2024
QUESTIONS WITH
COMPLETE
SOLUTIONS!!
Evatee 10/8/24 WATER TREATMENT
,WATER TREATMENT SAC STATE PRACTICE
EXAM 2024 QUESTIONS WITH COMPLETE
SOLUTIONS!!
1. Intrusion of seawater into groundwater basins results from _ Answer -
overpumping fresh water
2. What is the basic objective of the operation of water treatment plants?
1. Ensure that people drink plenty of water each day to support healthy
lifestyles
2. Increase water use and encourage water-intensive landscaping
3. Produce safe, aesthetically pleasing drinking water at a reasonable cost
4. Provide opportunities for professional advancement and salary increases
Answer - Produce safe, aesthetically pleasing drinking water at a reasonable
cost
3. What is one characteristic of a community water system?
1. Regularly serves at least 25 full-time residents
2. Regularly serves at least 25 people who are not residents
3. Regularly serves fewer than 25 full-time residents
4. Regularly serves fewer than 25 of the same
individuals Answer - Regularly serves at least 25 full-time residents
4. Which of the following influence the size of a water treatment plant as well
as the number and types of processes it uses?
,1. Expected water rates and projected profits
2. Impurities in raw water and cost considerations
3. National average rainfall and snowpack levels
4. Local landscaping styles and native plant programs Answer - Impurities in
raw water and cost considerations
5. Which plant operating guidelines are routinely monitored by water
treatment plant operators?
1. Equipment cleaning and painting schedules
2. Flows and water quality indicators
3. Number and frequency of public tours
4. Vehicle mileage and fuel usage Answer - Flows and water quality indicators
6. What is one purpose of clear wells or plant storage reservoirs?
1. Act as a trigger for ON/OFF cycling of finished water pumps
2. Allow clarification of water by providing time for particulates to settle out
3. Allow drawdown when demands are low to perform maintenance
4. Provide operational storage to average out high and low flow demands
Answer - Provide operational storage to average out high and low flow
demands
7. How would you verify the actual raw water flow rate after adjusting the
pumping rate to a water treatment plant?
1. Check reservoir levels
2. Count the number of pumps in service
3. Read the raw water flow measuring device
4. Rework the flow calculations Answer - Read the raw water flow measuring
device
, 8. How are the initial selection of chemical types and anticipated feed rates for
a given application in a water treatment plant usually deter-mined?
1. Computer modeling
2. Jar tests
3. Marble tests
4. Pilot-plant tests Answer - Pilot-plant tests
9. What is the best source of information about dangerous chemicals?
1. Chemical analysis from a certified laboratory
2. Safety data sheets (SDS)
3. Trial and error tests
4. Verbal reports from other operators Answer - Safety data sheets (SDS)
11. Which of these chemicals is one of the most dangerous common alkalies?
1. Calcium hydroxide
2. Caustic soda
3. Chlorine
4. Sodium bicarbonate Answer -
11. Which of these chemicals is one of the most dangerous common alkalies?
1. Calcium hydroxide
2. Caustic soda
3. Chlorine
4. Sodium bicarbonate Answer - Caustic soda
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