271. The process of establishing new traverse points by measuring angles and distances from known reference points is called __________.
a) Trilateration
b) Triangulation
c) Intersection
d) Resection
View Answer
Correct answer: b) Triangulation
Explanation: Triangulation involves using known reference points to establish new traverse points by measuring angles and distances from the reference points.
272. The purpose of a check shot in traverse surveying is to __________.
a) Verify the accuracy of the instrument
b) Measure the distance between two traverse points
c) Determine the true north direction
d) Establish the elevation of a traverse point
View Answer
Correct answer: a) Verify the accuracy of the instrument
Explanation: A check shot is a measurement taken with the theodolite to ensure the instrument is accurately measuring angles. It helps maintain the reliability of the instrument’s readings.
273. The leveling of a theodolite to ensure that it is horizontally aligned is known as __________.
a) Traversing
b) Plumbing
c) Leveling
d) Orienting
View Answer
Correct answer: d) Orienting
Explanation: Orienting refers to the process of leveling a theodolite to ensure that the horizontal axis of the instrument is aligned and parallel to the ground.
274. The process of measuring the vertical angles between the horizontal plane and a line of sight is called __________.
a) Traversing
b) Leveling
c) Plumbing
d) Angle measurement
View Answer
Correct answer: c) Plumbing
Explanation: Plumbing involves measuring the vertical angles using a theodolite to determine the difference in elevation between two points.
275. The instrument used to measure horizontal and vertical angles in traverse surveying is called a __________.
a) Total station
b) Dumpy level
c) Auto level
d) Theodolite
View Answer
Correct answer: d) Theodolite
Explanation: Theodolite is a precision instrument used to measure horizontal and vertical angles in traverse surveying.
276. The horizontal circle of a theodolite is graduated in __________.
a) Radians
b) Minutes and seconds
c) Degrees and minutes
d) Gradians
View Answer
Correct answer: c) Degrees and minutes
Explanation: The horizontal circle of a theodolite is typically graduated in degrees and minutes, allowing for precise measurement of horizontal angles.
277. The vertical circle of a theodolite is used to measure __________.
a) Horizontal angles
b) Vertical angles
c) Distances
d) Elevations
View Answer
Correct answer: b) Vertical angles
Explanation: The vertical circle of a theodolite is used to measure the vertical angles, which indicate the elevation differences between points.
278. The process of measuring the difference in elevation between two points using a theodolite and a leveling staff is called __________.
a) Traversing
b) Leveling
c) Plumbing
d) Intersecting
View Answer
Correct answer: b) Leveling
Explanation: Leveling is the process of determining the difference in elevation between two points using a theodolite and a leveling staff.
279. The leveling staff is marked in __________.
a) Radians
b) Feet and inches
c) Meters and centimeters
d) Decimal degrees
View Answer
Correct answer: c) Meters and centimeters
Explanation: The leveling staff is typically marked in meters and centimeters, allowing for accurate measurement of elevation differences.
280. The purpose of backsighting in traverse surveying is to __________.
a) Determine the true north direction
b) Measure the distance between two traverse points
c) Verify the accuracy of the instrument
d) Establish the elevation of a traverse point
View Answer
Correct answer: a) Determine the true north direction
Explanation: Backsighting involves measuring the angle between a known reference point and the instrument to determine the true north direction.
