NICET LEVEL 1 AND LEVEL 2 HIGHWAY CONSTRUCTION NEWEST 2024 ACTUAL EXAM 380 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+

NICET LEVEL 1 AND LEVEL 2 HIGHWAY CONSTRUCTION NEWEST 2024 ACTUAL EXAM 380 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+ 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. What are Benchmarks? Benchmarks are fixed exact points where an exact elevation is know. What is "Back Sight"? Back Sight is a rod reading taken on a point of know elevation. What is "Height of Instrumentation" (HI) is the elevation of the line of sight projected by the instrument. What is "Fore Sight" (FS)? Foresight is a rod reading taken on any point to determine it's elevation. What is "Turning Point" (TP)? Turning Point is a reliable point upon which a foresight is taken to establish elevation. A steel tape is used to measure the length between points "A" & "B" and the distance is found to be 95'. The temperature of the tape at the time of measurement is 45 degrees (F). If the tape is calibrated for 68 degrees (F) and no other factors are to be considered, is the measurement correct? Short or long? Why? 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 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? 1. 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