Free Construction Materials Testing, Asphalt, Level I Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Construction Materials Testing, Asphalt, Level I practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1An asphalt laboratory technician needs eye protection that seals around the eye sockets against dust and liquid splashes. Which type of protector has this design?

   1. A.Safety spectacles
   2. B.Welding shields
   3. C.Protective gogglesCorrect answer: C
   4. D.Face shields

   Explanation: OSHA describes goggles as "This tight-fitting eye protection completely covers the eyes, eye sockets, and the facial area immediately surrounding the eyes and provide protection from impact, dust and splashes." This is the enclosure needed for the technician’s exposure.

   Reference: Personal Protective Equipment — OSHA 3151-02R 2023 — Types of Eye Protection, p. 11

2. 2An asphalt sampling plan uses 100-foot stations without a station equation between the points. How far along the baseline is station 14+35 from station 12+80?

   1. A.155 feetCorrect answer: A
   2. B.245 feet
   3. C.1.55 feet
   4. D.2,715 feet

   Explanation: The reference gives a station length of "100 feet". The positions are 1,435 and 1,280 feet from the station origin, so their separation is 155 feet. The alternatives add the two positions, misread the plus notation as a decimal point, or subtract the station and plus components separately.

   Reference: Contract Plans Reading — Florida Department of Transportation — Chapter 1, Measuring Distances—Stations, pp. 1-38–1-41

3. 3A technician samples a flowing aggregate stream using the procedure in ASTM D75/D75M-14. What is the minimum number of equal, randomly selected increments needed to form the field sample?

   1. A.Two increments
   2. B.Three incrementsCorrect answer: B
   3. C.Four increments
   4. D.Five increments

   Explanation: The NICET checklist specifies "at least three equal increments". Three is the minimum; the composite must also meet the applicable minimum sample mass.

   Reference: NICET Sampling Coarse Aggregates Checklist — ASTM D75/D75M-14 — Sampling from Flowing Aggregate Stream, step 2, p. 1

4. 4A technician prepares to reduce a coarse-aggregate sample in a mechanical splitter. What is the minimum number of equal-width chutes specified in NICET’s reduction checklist?

   1. A.6 chutes
   2. B.12 chutes
   3. C.8 chutesCorrect answer: C
   4. D.16 chutes

   Explanation: The checklist specifies "8 for coarse aggregate" as the minimum. The chute count must also be even; the fine-aggregate minimum is a different value.

   Reference: NICET Aggregate Sample Reduction Checklist — ASTM C702/C702M-18 — Apparatus—Mechanical Splitter, p. 1

5. 5A technician uses the nuclear density method described in ASTM D2950/D2950M-14 on compacted asphalt. Attenuation of which radiation is used for the density determination?

   1. A.Alpha radiation
   2. B.Beta radiation
   3. C.Neutron radiation
   4. D.Gamma radiationCorrect answer: D

   Explanation: ASTM identifies attenuation of "gamma radiation" as the density-measurement principle. This distinguishes the density signal from other types of radiation used or encountered in nuclear instrumentation.

   Reference: ASTM D2950/D2950M-14 — Density of Bituminous Concrete in Place by Nuclear Methods — Scope, 1.1

6. 6A technician checks the raw specimen measurements needed for the D2726 immersion method. Which three-mass set supports that determination?

   1. A.Dry mass in air; SSD mass in air; apparent mass submergedCorrect answer: A
   2. B.Dry mass in air; SSD mass in air; empty-container mass
   3. C.Dry mass in air; apparent mass submerged; empty-container mass
   4. D.SSD mass in air; apparent mass submerged; empty-container mass

   Explanation: The checklist includes dry mass in air, "Immersed mass", and saturated surface-dry mass. All three specimen states are needed. Each other set substitutes an empty-container mass for one required specimen measurement.

   Reference: NICET Compacted-Asphalt Bulk Specific Gravity Checklist — ASTM D2726/D2726M-17 — p. 2, Method A, items 1–7

7. 7While checking a balance-calibration record, an asphalt technician must evaluate its claim of metrological traceability. Which evidence is central to that claim?

   1. A.A documented sequence of equipment-purchase transactions.
   2. B.A documented history of preventive-maintenance operations.
   3. C.A documented series of proficiency-sample comparisons.
   4. D.A documented chain of calibrations to the specified reference.Correct answer: D

   Explanation: NIST describes traceability through a "documented unbroken chain of calibrations, each contributing to the measurement uncertainty." Purchasing, maintenance, and proficiency records may have other quality roles, but none substitutes for that calibration linkage.

   Reference: NIST Metrological Traceability — Frequently Asked Questions and Policy — 3.2 Policy; FAQ 5.1.1

8. 8While moving heavy sample containers, a technician needs an additional guard over the instep of each foot against impact and compression. Which item specifically protects that area?

   1. A.Metatarsal guardsCorrect answer: A
   2. B.Toe guards
   3. C.Shin guards
   4. D.Protective leggings

   Explanation: The OSHA guide states, "Metatarsal guards protect the instep area from impact and compression." Toe guards cover the toes, while shin guards and leggings address other parts of the lower limb.

   Reference: Personal Protective Equipment — OSHA 3151-02R 2023 — Foot and Leg Protection, p. 20

9. 9At a paving alignment transition, the plans show station 9+00 BACK = station 7+00 AHEAD. What physical separation exists between these two station labels at the equation?

   1. A.100 feet
   2. B.200 feet
   3. C.0 feetCorrect answer: C
   4. D.1,600 feet

   Explanation: The reference explains that the two labels identify the "same point". A station equation changes the station designation at one physical location; it does not create a physical gap between those two labels.

   Reference: Contract Plans Reading — Florida Department of Transportation — Chapter 1, Equations, p. 1-43

10. 10A technician pauses a moving material-support surface, inserts two templates conforming to that surface, and collects the aggregate between them, including fines. Which D75 sampling method uses this sequence?

    1. A.Flowing-stream sampling
    2. B.Stockpile sampling
    3. C.Roadway sampling
    4. D.Conveyor-belt samplingCorrect answer: D

    Explanation: The conveyor procedure states, "Stop the conveyor belt" before obtaining the increment and then uses templates conforming to the belt. The other named methods collect from a discharge stream, a pile, or a placed roadway layer rather than this stopped supporting surface.

    Reference: NICET Sampling Coarse Aggregates Checklist — ASTM D75/D75M-14 — p. 2, Sampling from the Conveyor Belt, items 4–7