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NICET LEVEL 1 HIGHWAY CONSTRUCTION EXAM 150+
QUESTIONS AND VERIFIED ANSWERS 2025- 2026
Flourine has an atomic weight of 19 and an atomic number of 9. What is the number of neutrons in the atomic nucleus? - CORRECT ANSWER>> 10 An atom has 30 protons and 35 neutrons in its nucleus. It has 30 electrons in its shells. Its atomic weight would be? - CORRECT ANSWER>> 65 Backfill for use around culverts and pipes consists of - CORRECT ANSWER>>Granular materials An inspector looks through one end of a drainage pipe. He is most likely checking - CORRECT ANSWER>>Alignment of the pipe An important consideration in excavation for drainage is the trench width. Why is it important to keep the trench width to that which is called for by the specifications, and not larger? - CORRECT ANSWER>>Larger trench widths mean more backfill material, which increases costs. The main purpose of sampling any material is? - CORRECT ANSWER>>Obtain a small part of a lot to represent the whole. What is the water cement ratio? - CORRECT ANSWER>>Weight of water/weight of cement Wet sieve - CORRECT ANSWER>>Used to separate fine grain from coarse grain. It carried out by washing the soil specimen on a 60pm sieve mesh. In soil testing the test used to determine the ratio of the weight of a given volume of material to the weight of an equal volume of water is known as? - CORRECT ANSWER>>Density check
Slump test of concrete test all but which one of the following? Water cement ratio, admixture content, strength, durability/workability, water content. - CORRECT ANSWER>>Strength For a concrete slump test how is the cone to be filled with concrete? - CORRECT ANSWER>> 3 equal layers according to volume How is the bearing of a line notated? - CORRECT ANSWER>>S 23° 30' E Horizontal distances over sloping ground are usually determined by? - CORRECT ANSWER>>Surveying tape and plumbing bob A distance between two points 300' apart is measured on a hot day. The tape will show a length greater than or less than 300'? - CORRECT ANSWER>>Less A road has a grade of 2.0% with an elevation of 1252.00 at station 450+20. What is the elevation at station 455+30? - CORRECT ANSWER>> 45530 - 45020 = 510' 510 x 0.020 = 10.2' 1252.0 + 10.2 = 1262. Answer is 1262. What is the varnier on a leveling rod used for? - CORRECT ANSWER>>Used to determine the subdivision of the smallest division of a scale. What is the proper tension for a 100' steel tape? - CORRECT ANSWER>> 25 pounds When measuring with a steel tape a sag is detected. What will the reading be? - CORRECT ANSWER>>Too large A number 6 reinforcing bar has what size diameter? - CORRECT ANSWER>>Multiply the size by 1/8" 6 x 1/8 = 0.75" Answer is 0.75"
4πr^3/ =4π3^3/ =113 cf. Solve the following equation if A=6, B=3, C=21: X=√A^2+B^2+C^2 - CORRECT ANSWER>>X=√(6^2)+(3^2)+(21^2) X= What is the proper order of arithmetic operations? - CORRECT ANSWER>>PEMDAS (x+4)(x+9)=? - CORRECT ANSWER>>Use FOIL method, first outer, inner last; x^2+9x+4x+ x^2+13x+ 25% of what number is 10? - CORRECT ANSWER>>10/.25= 40 is 80% of what number? - CORRECT ANSWER>>40/.80= 144 inches squared - CORRECT ANSWER>>1 foot squared 9 feet squared - CORRECT ANSWER>> 1 yard squared 1 mile = feet - CORRECT ANSWER>>5,280 feet 1 cubic yard = cubic feet - CORRECT ANSWER>>27 cubic feet Convert 9,567 feet to miles? - CORRECT ANSWER>>9,567/5,280=1.81 miles Convert 5 miles to yards? - CORRECT ANSWER>>5 x 5,280 = 26,400 feet 26,400/3' = 8,800 yards Convert 82°F to Celsius? - CORRECT ANSWER>>C=(F-32)/1. C=(82-32)/1. C=27.78°C Convert: 32° C to °F - CORRECT ANSWER>>F=1.8°C+ F=1.8(32)+ F=89. Convert 120° to radians? - CORRECT ANSWER>>120(2π/360)=2.094 radians
Convert 2.094 radians to degrees? - CORRECT ANSWER>>2.094/(2π/360)=120° Convert 6.89° to degrees minutes and seconds? - CORRECT ANSWER>>0.89 x 60=53. 0.4 x 60= = 6° 53' 24" Convert 6° 53' 24" to degree decimal? - CORRECT ANSWER>>=24/60=0. =(53+0.4)/60=0. =6.89° Which is correct? Children's/childrens' Men's/mens' - CORRECT ANSWER>>Children's Men's Is this spelled correct? Manageable - CORRECT ANSWER>>Yes Define density? - CORRECT ANSWER>>Density is mass per unit volume. Density=mass/volume What is the specific gravity of water? - CORRECT ANSWER>>62.4 lb/ft^3/62.4 lb/ft^3= What is the unit weight of an object that has a volume of 3.5 ft^3 and weighs 500 lbs? - CORRECT ANSWER>>500/3.5=143 lb/ft^ Free fall problem: a stone is dropped. How fast will it be traveling in 3 seconds? - CORRECT ANSWER>>V=vo+aot =0+32.2(3) =96.6 ft/sec The weight of a 2 cubic foot block is 300 lbs. How much does this block weigh when submerged into water? - CORRECT ANSWER>>Weight= original weight - weight of water displaced. =300 lbs. - (2 x 62.4) = 175 lbs.
Trees to be saved within the right of way should be marked by? - CORRECT ANSWER>>The construction engineer Grubbing includes? - CORRECT ANSWER>>Removal of stumps, roots and stubs. Before beginning earthwork it is important to? - CORRECT ANSWER>>Verify location of underground utilities through local one call system. What is a mass haul diagram? - CORRECT ANSWER>>A graphical representation of the cumulative amount of earthwork moved along the centerline and distances over which the earth and materials are to be transported. It tells contractors and inspectors the quantity of material moved and how far it can be economically moved. When backfilling Culver's and storm drain, lifts are not to exceed? - CORRECT ANSWER>> 6 inches Backfill for pipes and culverts consist of? - CORRECT ANSWER>>Granular materials A project requires 250,000 CY of offsite borrow at $2.25/CY and 300,000 CY of on-site excavation at $1.75/CY all with special compaction bid at $0.25/CY. What is the total payment for the work? - CORRECT ANSWER>>(250,000x2.25)+(300,000x1.75)+ (550,000x0.25)=$1,225, For fences erected on a slope the post are to be set in what position? - CORRECT ANSWER>>Plumb Plans required a 42" high fence. If the post are 6' long, how much of the post is in the ground? - CORRECT ANSWER>>6'x12"=72" 72"-42"=30" Fence corners are strengthened by? - CORRECT ANSWER>>Horizontal post and tension wire. If plans show 35 stations of fence, how many linear feet of fence is required? - CORRECT ANSWER>>35x100'=3,500'
Why are line braces installed in long sections of fence? - CORRECT ANSWER>>To retain tension at elevation changes. What is important when inspecting concrete barrier? - CORRECT ANSWER>>Alignment Guardrail is 25' long. What is the center spacing of the posts if mounted on 8 spots? - CORRECT ANSWER>>8 posts means 7 spaces, therefore 25'/7=3.57' How is the paint thickness measured? - CORRECT ANSWER>>Mils Where would you find requirements for painting the structural steel of your project? - CORRECT ANSWER>>Specifications for the project. A girder measures 100' by 36" with flanges 12" wide. What is the surface area of the girder to the nearest square foot? - CORRECT ANSWER>>100'x3'x2 sides=600 square feet 12"x2(top and bottom)x100'x2 flanges=500 square feet Total=1,000 square feet Paint weighs 20 lbs/gallon. If a bridge requires 200 lbs of paint and so far only 125 lbs of paint has been applied, what is the percentage complete? - CORRECT ANSWER>>125/200=0. or 62.5% complete After the steel is cleaned but before the paint has begun what should be applied? - CORRECT ANSWER>>Primer What is a protective surface treatment for a concrete bridge deck? - CORRECT ANSWER>>White membrane curing compound. What is the purpose of using vibrators in concrete? - CORRECT ANSWER>>Consolidate Sealer treatment can be applied without hard even if the concrete is? - CORRECT ANSWER>>Still
Concrete pipe should be placed? - CORRECT ANSWER>>With the bell end of the pipe at the upstream end. When installing concrete pipe, install? - CORRECT ANSWER>>Downstream to upstream. When installing a culvert, work should begin? - CORRECT ANSWER>>Begin at downstream end. A culvert is labeled CMPA. What does CMPA stand for? - CORRECT ANSWER>>Corrugated metal pipe arch culvert Why is it important to keep the trench width consistent with the specs? - CORRECT ANSWER>>Larger trench widths increase cost. By looking through one end of a pipe an inspector is able to check for? - CORRECT ANSWER>>Alignment Given: Sta. Volume ft^ 1+50 210 2+00 150 2+50 275 What is the volume of the ditch in CY from sta. 1+50 to 2+50? - CORRECT ANSWER>>210+150/2= 180x50'=9,000 ft^ 150+275/2=212. 212.5x50'=10,625 ft^ (9,000+10,625)/27=727 CY A pipes invert elevation at the inlet is 153.5. A 100 ft. run of pipe is to be installed at a - 2.0% grade. What is the elevation at the end of the pipe run? - CORRECT ANSWER>>100x0.02=2'
What happens when the soil moisture content is greater than the optimum moisture content by more than the specification tolerance? - CORRECT ANSWER>>Erosion Where is the thickness of aggregate surface specified? - CORRECT ANSWER>>Cross section sheets What is water moisture content? - CORRECT ANSWER>>In given soil mass the ratio expressed as a percentage of the weight of dry soil particles. Define optimum moisture content? - CORRECT ANSWER>>The degree or percentage of moisture in soil at which the soil can be compacted to its greatest density.
- Sum and total signifies...
- Difference signifies...
- Product,times, and multiples of signify...
- Quotient, divided by, per, and ratio signify...
- Same as and equal to signify... - CORRECT ANSWER>>1. Addition
- Subtraction
- Multiplication
- Division
- Equality There are 3 types of views - CORRECT ANSWER>>Plan view, elevation or profile view, and cross section view A view from above - CORRECT ANSWER>>Plan view A view from the front or side - CORRECT ANSWER>>Elevation view A view as if the object has been cut open - CORRECT ANSWER>>Cross-section view
the roadway. These quantities are based on the final design estimate by the designer. These quantities will be used in creating the schedule of the materials sampling plan. Plan details - CORRECT ANSWER>>A detail is a view of a very specific item of work. It can be a plan view, but most likely will be a cross-section view. N.T.S. means not to scale. What is the diameter of a #4 rebar? - CORRECT ANSWER>>Divide the #4 by 8 to get the diameter. 4/8=0.5" or 1/2" What is the diameter of a #6 rebar. - CORRECT ANSWER>>Divide the #6 by 8 to get the diameter. 6/8=0.75" or 3/4" T/F Typical section sheets show elevation views of the proposed road. - CORRECT ANSWER>>False: profile sheets T/F The directional arrow is found on the profile sheet. - CORRECT ANSWER>>False: plan sheets or key sheet The shape of the roads side slopes and ditches are found on what sheet? - CORRECT ANSWER>>Typical section sheets What sheet depicts the cross-section view of the road superimposed on the natural ground line? - CORRECT ANSWER>>Cross-section sheets Construction drawings are typically drawn to SCALE. This means that - CORRECT ANSWER>>Lines on the plans are drawn to an exact length or a dimension. AVOID trying to measure distances on plan sheets with a ruler: look for a - CORRECT ANSWER>>Written dimension, or calculate from written figures first. Why do you avoid? - CORRECT ANSWER>>Copies of plan sheets blur lines, plans are inadvertently or on purpose reduced in size, thus changing the scale, errors in computation do occur.
The note (1/2"=100') means that - CORRECT ANSWER>>every one-half inch on the plan view represents 100 feet on the ground. Two inches represents 400', three inches represents 600', etc. *this can be on either the plan or profile sheets (vertical dimensions can also be drawn to scale) Distances shown on the plans are always - CORRECT ANSWER>>Measured either horizontally or vertically, never along the slope of the ground. Scale Map distance
- 1"=100' 1/2"
- 1"=100' 2"
- 1"=100' 3 3/4"
- 1"=10' 1/4"
- 1"=1 mile 1 1/4" - CORRECT ANSWER>>Ground distance (ft)
- 50'
- 200'
- 375'
- 2.5'
- 6,600' The term stationing (sta.) is used to - CORRECT ANSWER>>denote project longitudinal length along a surveyed line. A station is equal to 100 feet of distance. - CORRECT ANSWER>> 1 foot=12 inches 1 station=100 feet Most highway and bridge projects do not start at - CORRECT ANSWER>>0+ When a specific construction item is described in the plans, the exact location is defined
when speaking in - CORRECT ANSWER>>Construction terms Gradient is used when discussing - CORRECT ANSWER>>Longitudinal roadway vertical elevation changes Slope is mainly used when talking about vertical changes in elevation left and right, specifically for - CORRECT ANSWER>>ADA ramps, pipe and shoulder ditches (It's a more professional terminology) Grade or gradient is the - CORRECT ANSWER>>Longitudinal vertical profile (rise/fall/ or flatness) of the roadway. Grade or gradient is calculated in - CORRECT ANSWER>>Percent (%) The grade can either be - CORRECT ANSWER>>Rising (+%), falling (-%) or flat (0.00%) % grade is calculated as: - CORRECT ANSWER>>Vertical distance/horizontal distance x 100= Y% Slope is defined as the measure of the - CORRECT ANSWER>>Steepness of a line Slope is calculated as - CORRECT ANSWER>>Vertical length over horizontal length - AKA "rise over run" When slope ratios are given it is 99% of the time the? of the rise over run answer (see example picture under cross-slope) - CORRECT ANSWER>>Inverse ratio Slope formula - CORRECT ANSWER>>Vertical distance/horizontal distance % slope formula - CORRECT ANSWER>>Vertical distance/horizontal distance x 100 Cross-slope is defined as the - CORRECT ANSWER>>Transverse slope with respect to the horizon Cross-slope is expressed as vertical distance to horizontal distance, similar to calculating - CORRECT ANSWER>>% grade Cross slope is provided so that water will run off the pavement surface to a drainage
system such as a - CORRECT ANSWER>>Street gutter, inlet or longitudinal ditch Cross slope is either expressed as - CORRECT ANSWER>>Fort/foot or in a percentage A cross-slope of 0.04ft/ft means that the pavement elevation decreases by? vertically for each foot transversely, away from the center line - CORRECT ANSWER>>0.04 feet If the outside edge of the pavement is 15.0 feet from the centerline, it would be - CORRECT ANSWER>>0.6 feet below the elevation of centerline (0.04 x 15.0 = 0.6) Cross-slope formula - CORRECT ANSWER>>Cross slope rate ("Y")=vertical distance/horizontal distance Half life - CORRECT ANSWER>>The rate of decay is measured by its 1 - CORRECT ANSWER>>The pH number that indicates the greatest acidity is 5KG - CORRECT ANSWER>>Approximate mass of 49N weight is Atomic nucleus - CORRECT ANSWER>>The atomic number is the number of protons in an atom
