Free North Dakota Water Well Contractor Examination Practice Questions

Sample Practice Questions

Try these 10 sample questions from the North Dakota Water Well Contractor Examination practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1A company plans to construct a water well for a paying customer in North Dakota. Who must be in charge of the work?

   1. A. A certified monitoring well contractor
   2. B. A certified water well contractor
   3. C. A registered pump manufacturer
   4. D. A licensed geothermal system driller

   Answer: B

   Explanation: NDCC 61-03-27(1) states that a firm may not construct a water well unless "a certified water well contractor, who is responsible for the proper construction or alteration of a water well, is in charge." The water-well credential, not one of the separately regulated specialties, controls this job.

   Reference: North Dakota Century Code t61c03 — NDCC 61-03-27(1)

2. 2Under North Dakota's construction rule, when does a supply qualify as a public water supply based on service connections?

   1. A. At least 10 connections
   2. B. At least 12 connections
   3. C. At least 15 connections
   4. D. At least 25 connections

   Answer: C

   Explanation: NDAC 33.1-18-01-02(23) defines public water supply as one "connected to at least fifteen service connections" or meeting the separate persons-and-days test.

   Reference: nd1.ac_web — NDAC 33.1-18-01-02(23)

3. 3Absent department approval for another design, from at least what depth must the standard annular seal extend to the ground surface?

   1. A. 20 feet
   2. B. 25 feet
   3. C. 30 feet
   4. D. 40 feet

   Answer: C

   Explanation: NDAC 33.1-18-01-05(1) requires approved grout materials "from a depth of not less than thirty feet ... to the ground surface" or the upper casing end for a pitless completion.

   Reference: nd1.ac_web — NDAC 33.1-18-01-05(1)

4. 4What standard applies to wrought-iron or steel well casing through 10 inches in diameter in North Dakota?

   1. A. Schedule 20 or equivalent
   2. B. Schedule 30 or equivalent
   3. C. Schedule 40 or equivalent
   4. D. Schedule 80 only

   Answer: C

   Explanation: NDAC 33.1-18-01-06(2)(a) requires prime pipe "meeting current American society for testing and materials schedule 40, or equivalent specifications."

   Reference: nd1.ac_web — NDAC 33.1-18-01-06(2)(a)

5. 5What fundamental criterion governs selection of water used in the drilling process?

   1. A. It must come from a source that will not contaminate the well
   2. B. It must match the anticipated aquifer temperature
   3. C. It must have greater mineralization than the formation water
   4. D. It must be selected solely for hauling convenience

   Answer: A

   Explanation: NDAC 33.1-18-01-06(1) requires: "Water used in the drilling process shall be obtained from a source which will not result in contamination of the well." Temperature, mineralization, or convenience does not replace that controlling criterion.

   Reference: nd1.ac_web — NDAC 33.1-18-01-06(1)

6. 6When must a newly constructed well be tested for plumbness and alignment?

   1. A. Before drilling starts
   2. B. After the first annual renewal
   3. C. Upon completion of construction
   4. D. Only after pump failure

   Answer: C

   Explanation: NDAC 33.1-18-01-06(11) requires: "Every well shall be tested for plumbness and alignment upon completion of construction."

   Reference: nd1.ac_web — NDAC 33.1-18-01-06(11)

7. 7Which openings are covered by North Dakota's abandoned-water-well sealing requirement?

   1. A. Only wells that once supplied a public system
   2. B. Test wells, uncompleted wells, and completed wells
   3. C. Only wells deeper than 100 feet
   4. D. Only flowing wells with damaged valves

   Answer: B

   Explanation: NDAC 33.1-18-01-06(19) applies to "Any abandoned water wells, including test wells, uncompleted wells, and completed wells."

   Reference: nd1.ac_web — NDAC 33.1-18-01-06(19)

8. 8During well-performance measurements, which reading represents the static water level?

   1. A. The water level while the well pumps at full rate
   2. B. The water level immediately after adding grout
   3. C. The level at which water stands when none is being discharged
   4. D. The difference between well yield and drawdown

   Answer: C

   Explanation: NDAC 33.1-18-01-02(28) defines static water level as "the elevation of the surface of the water in a well when no water is being discharged therefrom."

   Reference: nd1.ac_web — NDAC 33.1-18-01-02(28)

9. 9A North Dakota landowner wants to construct a water well on the landowner's own premises solely for personal use. How does the contractor-certification requirement apply?

   1. A. The owner-use construction is expressly excepted
   2. B. The owner must obtain a monitoring-well credential
   3. C. The owner must employ a pump-and-pitless installer
   4. D. The owner must obtain a temporary water-well license

   Answer: A

   Explanation: NDCC 61-03-27(1) provides: "This section does not prohibit any person, partnership, association, corporation, or limited liability company from constructing any water well on the person's or entity's own premises for the person's or entity's own use." The stated facts fit that exception.

   Reference: North Dakota Century Code t61c03 — NDCC 61-03-27(1)

10. 10A well serves no more than fourteen connections. Which use pattern independently makes it a public water supply under the North Dakota rule?

    1. A. An average of 20 persons for 90 days per year
    2. B. An average of 25 persons daily for 60 days per year
    3. C. An average of 50 persons for 30 days per year
    4. D. An average of 60 persons for 25 days per year

    Answer: B

    Explanation: NDAC 33.1-18-01-02(23) also includes a supply that "regularly serves an average of twenty-five persons daily, sixty days out of the year."

    Reference: nd1.ac_web — NDAC 33.1-18-01-02(23)