NEBRASKA GROUNDWATER TECH EXAM(I) QUESTIONS
WITH COMPLETE SOLUTIONS GUARANTEED PASS BRAND
NEW 2025
Chemigation - ANSWER - >-Any process whereby chemicals are applied
to land or crops in or with water through an on farm irrigation
distribution system.
How does GW Temp increase as depth increases? - ANSWER - >-1°F
every 64'
How many days to report decommissioning of a well? - ANSWER - >-60
days to report to DNR
Observation well - ANSWER - >-A cased well for the purpose of
measuring and observing changes in water levels
Monitoring well - ANSWER - >-A cased well for the purpose of
determining ground water quality
Recovery well - ANSWER - >-A water well constructed for the purpose
of, or in conjunction with, the removal of contamination from an
aquifer
Sanitary well cap (seal) - ANSWER - >-a cover fitted to the top of a well
casing to seal the opening between the casing and the pump pipe
Confined aquifer - ANSWER - >-A groundwater storage area trapped
between two impermeable layers of rock, causing it to be under
pressure so when it is penetrated by a well, the water will rise above
the top of the aquifer
, Mainline propeller - ANSWER - >-A propeller meter consists of a
rotating device, a helical-shaped impeller, positioned in the flow
stream. When fluid passes through the meter it causes the impeller to
spin. The rotational V is proportional to the flow. The register calculates
the flow rate by Q=VA
Electric tape - ANSWER - >-Manual Device for measuring water levels.
Commonly accurate to 0.01', marked to 1/100'. Most accurate within
200' of LSD. Calibrated against benchmark steel tape. Pros: better than
steel tape when there is condensation inside walls, well is pumping,
port is small. Cons: harder to calibrate, higher maintenance. Hold
thumb nail at MP while lowering and wait for light and sound.
Purpose of field blanks - ANSWER - >-To indicate any possible
contamination in handling and/or analysis; Prepared in the field and
should come back non-detect
What is a bench mark on a topo map? - ANSWER - >-Point where exact
elevation is known; used to determine contour lines.
What does a GW tech do? - ANSWER - >-Engages in inspection of
chemigation system, measuring and recording static water levels,
inspection and servicing flow meters, and water sampling practices and
techniques.
Reverse helix - ANSWER - >-Installation of propeller meter with the
prop pointed downstream. Often used for surface water. Allows
passage for grass and moss. Same PDs as normal upstream direction.
How long is an emergency chem permit valid? - ANSWER - >-45 days
Data logger - ANSWER - >-A data logger is an electronic device that
records data over time or in relation to location either with a built in
WITH COMPLETE SOLUTIONS GUARANTEED PASS BRAND
NEW 2025
Chemigation - ANSWER - >-Any process whereby chemicals are applied
to land or crops in or with water through an on farm irrigation
distribution system.
How does GW Temp increase as depth increases? - ANSWER - >-1°F
every 64'
How many days to report decommissioning of a well? - ANSWER - >-60
days to report to DNR
Observation well - ANSWER - >-A cased well for the purpose of
measuring and observing changes in water levels
Monitoring well - ANSWER - >-A cased well for the purpose of
determining ground water quality
Recovery well - ANSWER - >-A water well constructed for the purpose
of, or in conjunction with, the removal of contamination from an
aquifer
Sanitary well cap (seal) - ANSWER - >-a cover fitted to the top of a well
casing to seal the opening between the casing and the pump pipe
Confined aquifer - ANSWER - >-A groundwater storage area trapped
between two impermeable layers of rock, causing it to be under
pressure so when it is penetrated by a well, the water will rise above
the top of the aquifer
, Mainline propeller - ANSWER - >-A propeller meter consists of a
rotating device, a helical-shaped impeller, positioned in the flow
stream. When fluid passes through the meter it causes the impeller to
spin. The rotational V is proportional to the flow. The register calculates
the flow rate by Q=VA
Electric tape - ANSWER - >-Manual Device for measuring water levels.
Commonly accurate to 0.01', marked to 1/100'. Most accurate within
200' of LSD. Calibrated against benchmark steel tape. Pros: better than
steel tape when there is condensation inside walls, well is pumping,
port is small. Cons: harder to calibrate, higher maintenance. Hold
thumb nail at MP while lowering and wait for light and sound.
Purpose of field blanks - ANSWER - >-To indicate any possible
contamination in handling and/or analysis; Prepared in the field and
should come back non-detect
What is a bench mark on a topo map? - ANSWER - >-Point where exact
elevation is known; used to determine contour lines.
What does a GW tech do? - ANSWER - >-Engages in inspection of
chemigation system, measuring and recording static water levels,
inspection and servicing flow meters, and water sampling practices and
techniques.
Reverse helix - ANSWER - >-Installation of propeller meter with the
prop pointed downstream. Often used for surface water. Allows
passage for grass and moss. Same PDs as normal upstream direction.
How long is an emergency chem permit valid? - ANSWER - >-45 days
Data logger - ANSWER - >-A data logger is an electronic device that
records data over time or in relation to location either with a built in
