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NICET LEVEL 1 & 2 IN HIGHWAY
CONSTRUCTION 2025 EXAM ALL 250
EXAM QUESTIONS AND CORRECT
ANSWERS
If a steel tape is held "off-line", is the measurement accurate? No. When measuring, tapes must be held on-line, if not, errors will occur in the actual measurement. Name the 9 most common errors that occur when measuring with tapes. Length other than standard, improper plumbing, temperature other than standard, poor alignment, tape not being horizontal (level), sagging, faulty marking, incorrect reading or interpolation. What are Catch Points? CP occur at the intersection of the existing ground and the constructed grade. The amount of cut or fill is determined by the difference between the roadway elevation and the original ground elevation.
Name the 3 types of Contour Lines. Index, Intermediate and Supplementary. What is the definition of Contour Lines? A Contour Line connects all points of equal elevation, above or below a known or assumed reference point or plane. How is a depression shown on a Topo Map? Hachure or tick marks that are on the inside of contour circles denote a depression. What are the "4 Rules" of Contour Lines?
- All points along the same contour line are on the same elevation. 2. All contour lines eventually connect. 3. Contour lines never cross each other. 4. Contour lines never split What instrument is used to determine the area of a Topo Map? Plainmeter
What is "Wet Sieve" Used to separate fine grain from coarse grain. It carried out by washing the soil specimen on a 60pm sieve mesh. Slump test of concrete tests all but which of the following? Water / cement ratio, admixture content, strength, durability & workability, water content. Strength. For a concrete slump test, how is the cone to be filled with concrete? In 3 equal layers. What is the "Critical Path" method? It's the fastest a project can be completed. It does not include any float days. Name the three types of Blueprint Views
- Plan View 2. Elevation or Profile View 3. Cross-Section View What is Plan View? View from above
What is the profile view? View from the front or the side What is the cross-section view? A view as if the object has been cut open What is the first sheet in a set of project plans? Title or key sheet What do typical section sheets show? They show the different layers of the road and side slopes and ditches for a particular given length. What is a plan detail? A detail is a view of a very specific item of work T/F Typical Section Sheets show elevation views of the proposed road.
Is 21+00 Up Station or Back Station from 23+00? Back Station What is "Cross-Slope"? Cross-slope is defined as the transverse slope with respect to the horizon What is surveying? the profession or work of examining and recording the area and features of a piece of land so as to construct a map, plan, or detailed description of it What is Geodectic Surveying? It is that type of surveying in which the curved shape of earth is taken into account. What is a level in surveying used for? A level is a telescope instrument used to set slope stakes, check the level of forms or field elevations / grades. What is the difference between a Transit vs a Level / Laser? A Transit can be tilted vertically to measure vertical angles.
What is a "Plumb Bob"? A "Plumb Bob" is a weighted object connected to a string that can be used to establish a vertical line. It is used to calculate horizontal distances over sloping ground in conjunction with a surveying tape. What is a "Survey Rod"? A survey rod reads like a tape measure. It allows the surveyor to record an observed number so that an elevation can be determined. What is a Vernier? A "Vernier" is used on a survey rod and is used to determine the subdivision of the smallest division of the smallest division of a scale. Can the terms "Transit" and "Level" be used synonymously? No. A Transit can measure vertical angles whereas a level cannot. When looking through a level, what are the 4 different hair lines that you will see called? Upper Stadia, Middle Cross / Middle Stadia, Lower Stadia and Vertical Cross.
The measurement will be too long. The tape shrunk due to the cold and principles of "Coefficient of Expansion". What is the typical tension required on a 100' steel tape? 25 LBS Drainage always occurs? Perpendicular (at right angle) to the contour lines. 25% of what number is 10? 10/ .25 = 40 40 is 80% of what number? 40/ .80 = 50 The PH value of a liquid will indicate what? Whether the liquid is acid or base. When compacting bituminous concrete with tandem two wheel or 3 wheel rollers, what is the weight of the rollers? 10-15 tons
What part of roadway construction is a sheepsfoot roller used for? Compaction of embankment. In asphalt construction, it is most difficult to obtain a representative test sample from? Open graded. Trees to be saved within the R-O-W should be marked by? The Construction Engineer. Grubbing includes? Removal of stumps, roots and stubs. Before beginning earthwork, it is important to? Verify location of underground utilities through local one call system. When backfilling culverts and storm drains, lifts are not to exceed?
What is important when inspecting concrete barrier? Alignment Guardrail is 25' long. What is the center spacing of the posts if mounted on 8 posts? 8 posts means 7 spaces. 25' / 7 = 3.57' How is the thickness of paint measured? Mils A girder measures 100' by 36" with flanges 12" wide. What is the surface area of the girder to the nearest SF? 100' x 3' x 2 sides = 600 SF 12" x 2 (top and bottom) x 100' x 2 Flanges = 400 SF Total - 1000 SF Paint weighs 20lbs per gallon. If a bridge requires 200 lbs of paint and so far only 125 lbs of paint has been applied, what is the percentage completed? 125 divided by 200 =.
(or 62.5% complete) What is the protective surface treatment for a concrete bridge deck? White membrane curing compound. What is the purpose of using vibrators in concrete? Consolidation Sealer treatment can be applied without being hard, even if the concrete is? Still green Excessive vibration of concrete causing the top to become white, chalky and non durable is called? Laitance The main reason for applying liquid membrane forming compound on concrete is? Preventing loss of water during early curing.
A culvert is labeled CMPA. What does CMPA stand for? Corrugated Metal Pipe Arch Culvert Why is it important to keep trench width consistent with the specs? Larger trench widths increase cost. By looking through one end of a pipe, an inspector is able to check for? Alignment A pipe's 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? 100 x 0.02 = 2' 153.5 - 2.0 = 151.5' What happens when the soil moisture content is greater than the optimum moisture content by more than the specification tolerance? Erosion Where is the thickness of aggregate surface specified?
Cross Section Sheets What is Water Moisture Content? In given soil mass, the ratio expressed as a percentage of the weight of water to the weight of dry soil particles. Define Optimum Moisture Content? The degree or percentage of moisture in soil at which the soil can be compacted to it's greatest density. What are the ACI testing procedures? Temp, Air by Volumetric method, Air Content by Pressure method, Slump, Unit Weight and Cylinders. Slope stakes are set using which instrument? Level Horizon and vertical angle may be measured by?
What is inspection's first priority? The safety of the public OSHA requires nets to be placed under work when work is how many feet above the ground or water? 25 feet What document is a standard for design and construction of traffic control? MUTCD The standard color for Construction Barricade is? Orange and white The standard height of Type 1 and Type II construction barricades is? 3 Feet The minimum height of construction signs on a temporary movable support is? 6 Feet
Where should advanced construction warning signs be placed on a highway? 1 mile How do you best relieve the pain of a first and 2nd degree burn? Soak in cold water What type of fire extinguisher should NOT be used to extinguish a burning gasoline fire? Dry chemical T / F? All injured victims should be treated for shock. False A tandem 2 wheel roller used for compacting asphalt weighs approximately? Varies from 2-8 tons. An asphalt mix may flatten in a truck during delivery due to? Excessive asphalt in the mix or if the mix is too hot.
