Surveying — Quiz 6

Questions in this quiz (10)

1. A surveyor sets up a total station $$4.00\ \mathrm{ft}$$ above benchmark A that has an elevation of $$825.50\ \mathrm{ft}$$. A zenith angle and slope distance of $$93^\circ30^\prime20^{\prime\prime}$$ and $$655.90\ \mathrm{ft}$$, respectively, are measured to a reflector that is set up $$4.25\ \mathrm{ft}$$ above a hub at Point B. The elevation of the hub at Point B is most nearly:

   • $$865.36\ \mathrm{ft}$$
   • $$793.64\ \mathrm{ft}$$
   • $$785.14\ \mathrm{ft}$$
   • $$777.14\ \mathrm{ft}$$

2. A surveyor reads a backsight of $$3.474\ \mathrm{m}$$ on Point A and a foresight of $$2.005\ \mathrm{m}$$ on Point B. The elevation of Point A is $$324.014\ \mathrm{m}$$. The elevation of Point B is most nearly:

   • $$325.483\ \mathrm{m}$$
   • $$329.493\ \mathrm{m}$$
   • $$318.535\ \mathrm{m}$$
   • $$324.255\ \mathrm{m}$$

3. A closed traverse is conducted with the bearing angles shown in the table below. Determine the closing error of the traverse.

   • $$0.026\ \mathrm{ft}$$
   • $$0.035\ \mathrm{ft}$$
   • $$0.077\ \mathrm{ft}$$
   • $$0.095\ \mathrm{ft}$$

4. Given an angle of $$114^\circ 15^\prime 24^{\prime\prime}$$, what is the equivalent angle in decimal degrees?

   • $$114.2567^\circ$$
   • $$114.1524^\circ$$
   • $$114.4256^\circ$$
   • $$114.2054^\circ$$

5. A survey has a control point A with coordinates $$N=1000.00,\ E=1000.00$$. The coordinates of point B are $$N=1230.30,\ E=1476.59$$. Determine the bearing of course AB.

   • $$N25^\circ47^\prime28^{\prime\prime}E$$
   • $$N25^\circ47^\prime28^{\prime\prime}E\ 529.32$$
   • $$N64^\circ12^\prime32^{\prime\prime}E$$
   • $$N64^\circ12^\prime32^{\prime\prime}E\ 1921.97$$

6. A surveyor lays out a horizontal curve with radius $$500\ \mathrm{ft}$$ and deflection angle $$40^\circ$$. The PC is at station $$10+00$$. Determine the PT station, long chord, and angle.

   • $$13+42,\ 349\ \mathrm{ft},\ 20^\circ$$
   • $$13+42,\ 342\ \mathrm{ft},\ 40^\circ$$
   • $$13+49,\ 342\ \mathrm{ft},\ 20^\circ$$
   • $$13+49,\ 349\ \mathrm{ft},\ 40^\circ$$

7. The coordinates of an irregularly shaped plot are: Determine the area of the plot.

   • $$1.34\ \mathrm{acres}$$
   • $$1.38\ \mathrm{acres}$$
   • $$1.43\ \mathrm{acres}$$
   • $$1.47\ \mathrm{acres}$$

8. Distances were measured at 25-ft intervals along a traverse to an irregular boundary. Using the trapezoidal rule, determine the area of the plot.

   • $$21,090\ \mathrm{ft^2}$$
   • $$21,110\ \mathrm{ft^2}$$
   • $$21,180\ \mathrm{ft^2}$$
   • $$21,220\ \mathrm{ft^2}$$

9. Find the total volume of fill for the project site given:

   • $$400\ \mathrm{yd^3}$$
   • $$600\ \mathrm{yd^3}$$
   • $$11000\ \mathrm{yd^3}$$
   • $$14000\ \mathrm{yd^3}$$

10. Given the coordinates of polygon ABCD: A (520,-350) B (850,350) C (-450,950) D (-700,-1150) Determine the area of polygon ABCD.

    • $$39.8\ \mathrm{acres}$$
    • $$14.5\ \mathrm{acres}$$
    • $$29.0\ \mathrm{acres}$$
    • $$79.6\ \mathrm{acres}$$