1
NICET Level 1 Highway Construction Exam
2025/2026 – All 160 Actual Questions with
Correct Answers (Graded A+)
Question 1
What is the primary purpose of sampling any material during highway construction?
A) To reduce project costs
B) To obtain a small part of a lot to represent the whole
C) To increase material strength
D) To verify contractor credentials
B) To obtain a small part of a lot to represent the whole
Rationale: Sampling ensures that a small portion represents the entire material lot for quality
control testing, per AASHTO T 2 and NICET Level 1 standards.
Question 2
During installation of traffic loops in pavement, which practice is required?
A) Allow vehicular traffic over open saw cuts
B) Thoroughly clean the saw cut of foreign material
C) Overlap saw cuts at corners
D) Use metal sleeves where loop wire crosses a joint
B) Thoroughly clean the saw cut of foreign material
Rationale: Cleaning saw cuts ensures proper adhesion and function of loop wires, per
AASHTO M 252 and NICET guidelines for traffic loop installation.
Question 3
What is the water-cement ratio in concrete?
A) Volume of water divided by volume of cement
B) Weight of water divided by weight of cement
C) Weight of cement divided by weight of water
D) Volume of cement divided by volume of water
, 2
B) Weight of water divided by weight of cement
Rationale: The water-cement ratio is calculated as the weight of water divided by the weight
of cement, per ASTM C94, to ensure proper concrete strength and workability.
Question 4
For a concrete slump test, how should the cone be filled with concrete?
A) In one layer with rodding
B) In two equal layers by weight
C) In three equal layers by volume
D) In four equal layers by volume
C) In three equal layers by volume
Rationale: ASTM C143 requires filling the slump cone in three equal layers by volume,
each rodded 25 times, to ensure consistent test results.
Question 5
What does a concrete slump test measure?
A) Strength
B) Workability
C) Admixture content
D) Water content only
B) Workability
Rationale: The slump test measures concrete workability, not strength or admixture content,
per ASTM C143, critical for ensuring proper placement.
Question 6
What is the bearing of a line notated as S 23° 30' E?
A) South 23 degrees, 30 minutes East
B) South 23 degrees, 30 minutes West
C) North 23 degrees, 30 minutes East
D) North 23 degrees, 30 minutes West
A) South 23 degrees, 30 minutes East
Rationale: The notation S 23° 30' E indicates a bearing 23 degrees and 30 minutes east of
south, per standard surveying notation used in NICET exams.
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Question 7
How are horizontal distances over sloping ground typically measured?
A) Using a laser level only
B) Using a surveying tape and plumb bob
C) Using GPS coordinates
D) Using a theodolite
B) Using a surveying tape and plumb bob
Rationale: Surveying tape with a plumb bob ensures accurate horizontal distance
measurements over sloping ground, per AASHTO and NICET standards.
Question 8
If a 300-foot distance is measured with a tape on a hot day, what will the tape show?
A) Exactly 300 feet
B) More than 300 feet
C) Less than 300 feet
D) Depends on the tape material
C) Less than 300 feet
Rationale: Heat causes tape expansion, resulting in a shorter recorded distance due to
thermal elongation, per AASHTO surveying guidelines.
Question 9
What is the pH number indicating the greatest acidity?
A) 1
B) 7
C) 10
D) 14
A) 1
Rationale: A pH of 1 indicates the highest acidity on the pH scale (0–14), relevant for soil
and material testing in highway construction, per NICET standards.
Question 10
, 4
What is the approximate mass of a 49N weight?
A) 2 kg
B) 5 kg
C) 10 kg
D) 15 kg
B) 5 kg
Rationale: Using the approximation g ≈ 9.8 m/s², a 49N weight has a mass of 49 ÷ 9.8 ≈ 5
kg, relevant for material calculations in NICET exams.
Question 11
What is the atomic number of an element?
A) Number of neutrons in the nucleus
B) Number of protons in the nucleus
C) Total number of protons and neutrons
D) Number of electrons in the outer shell
B) Number of protons in the nucleus
Rationale: The atomic number is the number of protons in an atom’s nucleus, per basic
chemistry principles applied in NICET material testing.
Question 12
Fluorine has an atomic weight of 19 and an atomic number of 9. How many neutrons are in its
nucleus?
A) 9
B) 10
C) 19
D) 28
B) 10
Rationale: Atomic weight (19) minus atomic number (9) gives the number of neutrons (19 –
9 = 10), per NICET material science requirements.
Question 13
An atom has 30 protons and 35 neutrons in its nucleus and 30 electrons in its shells. What is its
atomic weight?
NICET Level 1 Highway Construction Exam
2025/2026 – All 160 Actual Questions with
Correct Answers (Graded A+)
Question 1
What is the primary purpose of sampling any material during highway construction?
A) To reduce project costs
B) To obtain a small part of a lot to represent the whole
C) To increase material strength
D) To verify contractor credentials
B) To obtain a small part of a lot to represent the whole
Rationale: Sampling ensures that a small portion represents the entire material lot for quality
control testing, per AASHTO T 2 and NICET Level 1 standards.
Question 2
During installation of traffic loops in pavement, which practice is required?
A) Allow vehicular traffic over open saw cuts
B) Thoroughly clean the saw cut of foreign material
C) Overlap saw cuts at corners
D) Use metal sleeves where loop wire crosses a joint
B) Thoroughly clean the saw cut of foreign material
Rationale: Cleaning saw cuts ensures proper adhesion and function of loop wires, per
AASHTO M 252 and NICET guidelines for traffic loop installation.
Question 3
What is the water-cement ratio in concrete?
A) Volume of water divided by volume of cement
B) Weight of water divided by weight of cement
C) Weight of cement divided by weight of water
D) Volume of cement divided by volume of water
, 2
B) Weight of water divided by weight of cement
Rationale: The water-cement ratio is calculated as the weight of water divided by the weight
of cement, per ASTM C94, to ensure proper concrete strength and workability.
Question 4
For a concrete slump test, how should the cone be filled with concrete?
A) In one layer with rodding
B) In two equal layers by weight
C) In three equal layers by volume
D) In four equal layers by volume
C) In three equal layers by volume
Rationale: ASTM C143 requires filling the slump cone in three equal layers by volume,
each rodded 25 times, to ensure consistent test results.
Question 5
What does a concrete slump test measure?
A) Strength
B) Workability
C) Admixture content
D) Water content only
B) Workability
Rationale: The slump test measures concrete workability, not strength or admixture content,
per ASTM C143, critical for ensuring proper placement.
Question 6
What is the bearing of a line notated as S 23° 30' E?
A) South 23 degrees, 30 minutes East
B) South 23 degrees, 30 minutes West
C) North 23 degrees, 30 minutes East
D) North 23 degrees, 30 minutes West
A) South 23 degrees, 30 minutes East
Rationale: The notation S 23° 30' E indicates a bearing 23 degrees and 30 minutes east of
south, per standard surveying notation used in NICET exams.
, 3
Question 7
How are horizontal distances over sloping ground typically measured?
A) Using a laser level only
B) Using a surveying tape and plumb bob
C) Using GPS coordinates
D) Using a theodolite
B) Using a surveying tape and plumb bob
Rationale: Surveying tape with a plumb bob ensures accurate horizontal distance
measurements over sloping ground, per AASHTO and NICET standards.
Question 8
If a 300-foot distance is measured with a tape on a hot day, what will the tape show?
A) Exactly 300 feet
B) More than 300 feet
C) Less than 300 feet
D) Depends on the tape material
C) Less than 300 feet
Rationale: Heat causes tape expansion, resulting in a shorter recorded distance due to
thermal elongation, per AASHTO surveying guidelines.
Question 9
What is the pH number indicating the greatest acidity?
A) 1
B) 7
C) 10
D) 14
A) 1
Rationale: A pH of 1 indicates the highest acidity on the pH scale (0–14), relevant for soil
and material testing in highway construction, per NICET standards.
Question 10
, 4
What is the approximate mass of a 49N weight?
A) 2 kg
B) 5 kg
C) 10 kg
D) 15 kg
B) 5 kg
Rationale: Using the approximation g ≈ 9.8 m/s², a 49N weight has a mass of 49 ÷ 9.8 ≈ 5
kg, relevant for material calculations in NICET exams.
Question 11
What is the atomic number of an element?
A) Number of neutrons in the nucleus
B) Number of protons in the nucleus
C) Total number of protons and neutrons
D) Number of electrons in the outer shell
B) Number of protons in the nucleus
Rationale: The atomic number is the number of protons in an atom’s nucleus, per basic
chemistry principles applied in NICET material testing.
Question 12
Fluorine has an atomic weight of 19 and an atomic number of 9. How many neutrons are in its
nucleus?
A) 9
B) 10
C) 19
D) 28
B) 10
Rationale: Atomic weight (19) minus atomic number (9) gives the number of neutrons (19 –
9 = 10), per NICET material science requirements.
Question 13
An atom has 30 protons and 35 neutrons in its nucleus and 30 electrons in its shells. What is its
atomic weight?
