Question 1. A control survey providing two controls points of x, y, and z coordi

Question

Question 1. A control survey providing two controls points of x, y, and z coordinates within a line of sight of each other will allow a construction surveyor to:

a. Establish reference for construction control in the vertical plan.

b. Establish reference for both horizontal and vertical construction control.

c. Establish necessary angles for construction control.

d. Install benchmarks for use in horizontal construction control.

Question 2. A construction surveyor using a total station to verify a coordinate point of a building corner location encounters a problem. He cannot view the exact location of the hub and tack due approximately two to three feet of relief from surrounding terrain. If he forgot his rod and prism, what other device could be used to get the shot for horizontal alignment?

a. A steel tape

b. A fiberglass rod

c. A hand level

d. A plum bob

Question 3. The foundation outside wall lines for building construction are referenced with offset batter boards and string-lines pulled in alignment with the outside walls line of the foundation because:

a. Buildings are always constructed parallel to the property boundary.

b. Batter boards are easier to install than corner points.

c. A column line would more likely be moved during the construction process

d. The exact corner points used to install the offsets are inevitably disturbed during construction of the foundation.

Question 4. The positioning of tightly drawn closed contours around each other in descending elevation as you near the final center contour would be a good indicator to the location of a :

a. Ravine

b. Hill

c. Depression or lake

d. Plateau

Question 5. The result of control survey for a construction project must include:

a. A baseline with three points forming a right triangle

b. A closed transverse of the property boundary

c. At least two control points with northing, easting, and elevation values within a line of sight of each other.

d. At least one bench march with coordinate values an assigned elevation

Question 6. When installing line and grade for the construction of a highway , after the initial lauyout of the centerline station and marked with elevation cut and fill, it is most essential to install

: a. Offset stakes just outside construction disturbance

. b. Grade transfer stakes at the rod edge line

c. Horizontal curve tangent points

d. Culvert standing points and ending point stakes

Question 7. When setting up a theodolite or transit with an optical plumb over a control point, the first means of leveling the instrument after the leg bottoms are sturdily set is:

a. By adjusting the instrument leveling screws

b. By adjusting the tripod legs down

c. By moving the leg bottoms to a better position

d. By shimming the leveling screws with a coin Question

8. A total station is the preferred instrument for construction surveyors because of :

a. Its ability to measure horizontal and vertical angles as well as distance

b. The cost related to a theodolite

c. Its light weight aerodynamic design

d. Its GPS capabilities

Question 9. When using an automatic level and rod to conduct differential leveling for construction grade control of a concrete wall, the first necessary step following setup of the level is to:

a. Backsight a benchmark to establish elevation of the new concrete wall.

b. Foresight the concrete wall to get a reference elevation

c. Backsight a benchmark to establish the HI

d. Zero the instrument angle readout

Explanation / Answer

Question 1) answer is b. Since control survey means establishing the horizontal and vertical positions of widely spaced control points using principles of geodetic surveying.

Question 4) answer is c. As it is given as descending elevation near to the center of contour it shows a depression which represents lakes and ponds.

Question 8) answer is a. The total station name itself indicates that using this instrument you can measure horizontal and vertical distances, horizontal and vertical angles including slope distances in gri.

Question 9) answer is c. When you are using the automatic level and rod for conducting differential leveling for construction grade control point of a concrete wall you must know the height of the instrument. To measure the height of instrument we need to take backsight of a benchmark.

Question 7) answer a. Instrument station legs are sturdily set up means tripod stand is leveled perfectly using the plumb Bob. Now we need to level the instrument by using the levelling screws. Generally theodolites have three or four levelling screws for levelling the instrument.

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