NEVADA (NV) C-23 DRILLING WELLS PRACTICE EXAM QUESTIONS AND ANSWERS ALREADY GRADED A+.
100% Verified Solutions | Updated Per Latest Guidelines | Graded A+...
CORE DOMAINS
Nevada Water Law, Well Drilling Regulations, and NRS 534
Nevada State Contractors Board Law (NRS 624) and Business Practices
Well Design, Construction, and Casing Installation
Drilling Methods, Fluids, and Equipment Operation
Stratigraphy, Hydrogeology, and Nevada Aquifer Characteristics
Well Development, Testing, and Rehabilitation
Grouting, Sealing, and Well Abandonment Procedures
Pump Selection, Installation, and Column Pipe Design
Water Quality, Sampling, and Disinfection
Health, Safety, and Environmental Compliance (OSHA, NDEP)
This practice assessment is designed for candidates preparing for the Nevada C-23 Drilling Wells Contractor
Licensing Examination. The examination evaluates the advanced technical competencies required to drill,
construct, develop, repair, and abandon water wells in compliance with the Nevada Revised Statutes (NRS 534), the
,Nevada Administrative Code (NAC 534), and the regulations of the Nevada Division of Water Resources (NDWR)
and the Nevada State Contractors Board. Key skills assessed include interpreting well logs and hydrogeologic data,
designing and installing casing and well screens, performing grouting and sanitary seals, conducting aquifer
testing and pump installation, ensuring water quality through proper disinfection, and managing business
operations and safety compliance. Questions simulate realistic field and office scenarios to test critical thinking,
regulatory compliance, and professional judgment. The format consists of 100 original multiple-choice questions
that mirror the cognitive demands, style, and difficulty distribution of the live proctored examination.
SECTION ONE
Question 1
According to NRS 534, a person must hold a well driller's license to drill a water well in Nevada. The license is
issued by the:
A. Nevada State Contractors Board
B. State Engineer, Division of Water Resources
C. Local county building department
D. Nevada Department of Environmental Protection
🟢 Correct Answer: B
🔴 RATIONALE: The Nevada Division of Water Resources, under the authority of the State Engineer, regulates
well drilling through licensure, permits, and construction standards (NRS 534 and NAC 534).
,Question 2
What is the primary purpose of the "annular seal" in a water well?
A. To hold the pump in place
B. To prevent the migration of surface contaminants down the outside of the casing
C. To provide structural support to the borehole
D. To measure the depth of the well
🟢 Correct Answer: B
🔴 RATIONALE: The annular seal (grout) fills the space between the casing and the borehole wall. It is the
primary sanitary barrier protecting the aquifer from surface water and shallow contaminant infiltration.
Question 3
When drilling a well, the driller encounters a flowing artesian aquifer. According to Nevada regulations, what
immediate action is required?
A. Drill faster
B. Control the flow to prevent waste and protect the aquifer, and notify the State Engineer
C. Cap it with concrete immediately
D. Let it flow freely to clear the well
, 🟢 Correct Answer: B
🔴 RATIONALE: Artesian wells must be controlled to prevent the loss of artesian pressure and water waste. The
driller is legally responsible for controlling the flow and reporting it to the NDWR.
Question 4
What drilling method uses a rotating bit, a drilling fluid (mud) to remove cuttings, and is highly effective in
unconsolidated formations?
A. Cable tool drilling
B. Direct rotary drilling
C. Air hammer drilling
D. Hand auger drilling
🟢 Correct Answer: B
🔴 RATIONALE: Direct rotary (mud rotary) circulates drilling fluid down the drill pipe and up the annulus,
carrying cuttings out. The fluid also stabilizes the borehole in loose formations.
Question 5
A well casing has a "blank" section at the top. This is primarily designed to:
100% Verified Solutions | Updated Per Latest Guidelines | Graded A+...
CORE DOMAINS
Nevada Water Law, Well Drilling Regulations, and NRS 534
Nevada State Contractors Board Law (NRS 624) and Business Practices
Well Design, Construction, and Casing Installation
Drilling Methods, Fluids, and Equipment Operation
Stratigraphy, Hydrogeology, and Nevada Aquifer Characteristics
Well Development, Testing, and Rehabilitation
Grouting, Sealing, and Well Abandonment Procedures
Pump Selection, Installation, and Column Pipe Design
Water Quality, Sampling, and Disinfection
Health, Safety, and Environmental Compliance (OSHA, NDEP)
This practice assessment is designed for candidates preparing for the Nevada C-23 Drilling Wells Contractor
Licensing Examination. The examination evaluates the advanced technical competencies required to drill,
construct, develop, repair, and abandon water wells in compliance with the Nevada Revised Statutes (NRS 534), the
,Nevada Administrative Code (NAC 534), and the regulations of the Nevada Division of Water Resources (NDWR)
and the Nevada State Contractors Board. Key skills assessed include interpreting well logs and hydrogeologic data,
designing and installing casing and well screens, performing grouting and sanitary seals, conducting aquifer
testing and pump installation, ensuring water quality through proper disinfection, and managing business
operations and safety compliance. Questions simulate realistic field and office scenarios to test critical thinking,
regulatory compliance, and professional judgment. The format consists of 100 original multiple-choice questions
that mirror the cognitive demands, style, and difficulty distribution of the live proctored examination.
SECTION ONE
Question 1
According to NRS 534, a person must hold a well driller's license to drill a water well in Nevada. The license is
issued by the:
A. Nevada State Contractors Board
B. State Engineer, Division of Water Resources
C. Local county building department
D. Nevada Department of Environmental Protection
🟢 Correct Answer: B
🔴 RATIONALE: The Nevada Division of Water Resources, under the authority of the State Engineer, regulates
well drilling through licensure, permits, and construction standards (NRS 534 and NAC 534).
,Question 2
What is the primary purpose of the "annular seal" in a water well?
A. To hold the pump in place
B. To prevent the migration of surface contaminants down the outside of the casing
C. To provide structural support to the borehole
D. To measure the depth of the well
🟢 Correct Answer: B
🔴 RATIONALE: The annular seal (grout) fills the space between the casing and the borehole wall. It is the
primary sanitary barrier protecting the aquifer from surface water and shallow contaminant infiltration.
Question 3
When drilling a well, the driller encounters a flowing artesian aquifer. According to Nevada regulations, what
immediate action is required?
A. Drill faster
B. Control the flow to prevent waste and protect the aquifer, and notify the State Engineer
C. Cap it with concrete immediately
D. Let it flow freely to clear the well
, 🟢 Correct Answer: B
🔴 RATIONALE: Artesian wells must be controlled to prevent the loss of artesian pressure and water waste. The
driller is legally responsible for controlling the flow and reporting it to the NDWR.
Question 4
What drilling method uses a rotating bit, a drilling fluid (mud) to remove cuttings, and is highly effective in
unconsolidated formations?
A. Cable tool drilling
B. Direct rotary drilling
C. Air hammer drilling
D. Hand auger drilling
🟢 Correct Answer: B
🔴 RATIONALE: Direct rotary (mud rotary) circulates drilling fluid down the drill pipe and up the annulus,
carrying cuttings out. The fluid also stabilizes the borehole in loose formations.
Question 5
A well casing has a "blank" section at the top. This is primarily designed to:
