Land Surveying Reconnaissance Lecture

What is one of the basic measurements in surveying according to the text?

Slope angle measurement
Horizontal area measurement
Vertical distance measurement
Horizontal distance measurement (correct)

Which method involves direct measurement of distances with a tape or chain?

Pacing (correct)
Odometer of a vehicle
Electronic Distance Measurement (EDM)
Tachometry

What is the method used for rapid and accurate indirect distance measurement through optical surveying instruments like theodolite?

Taping (chaining)
Pacing
Odometer of a vehicle
Tachometry (correct)

Which method uses the diameter of tires and number of wheel revolutions to measure distance?

Tachometry (B) Signup and view all the answers

What does EDM stand for in surveying?

Electronic Distance Measurement (A) Signup and view all the answers

Why should the field equipment be thoroughly checked before use according to the text?

To ensure accurate measurements (B) Signup and view all the answers

What is the main purpose of reconnaissance in surveying?

Identifying the best position for survey stations (D) Signup and view all the answers

During reconnaissance, what is NOT one of the objectives?

Measuring the exact dimensions of the area (A) Signup and view all the answers

What is the fundamental rule in surveying according to the text?

Beginning with precise control surveying (C) Signup and view all the answers

What is one key aspect of reconnaissance in surveying?

Selecting suitable positions for survey stations (A) Signup and view all the answers

In surveying, what is NOT a common objective of reconnaissance?

Drafting a detailed report of the surveyed area (C) Signup and view all the answers

Which of the following is a critical part of the reconnaissance process in surveying?

Selecting suitable positions for survey stations (D) Signup and view all the answers

What is the purpose of surveying from the whole to the part?

To localize errors within the main control frame (A) Signup and view all the answers

In surveying, what is the main purpose of establishing tertiary control points?

To fill in small gaps with closer intervals (D) Signup and view all the answers

What is the purpose of the reconnaissance survey phase?

To obtain a general picture of the area to be surveyed (D) Signup and view all the answers

How are other points and lines fixed in surveying according to the text?

By using measurements from two control points (C) Signup and view all the answers

What is the purpose of the secondary control points in surveying?

To fill gaps between primary control points with lesser precision (D) Signup and view all the answers

Which phase of the survey process involves actual measurements in the field?

Field work and measurement (B) Signup and view all the answers

How does surveying 'work from the whole to the part' help in minimizing errors?

By localizing errors within the main control frame (A) Signup and view all the answers

'Fixing the third points using two points' involves what operation according to the text?

Using A and B as centers to ascribe arcs (C) Signup and view all the answers

What aspect should a surveyor understand during field work and measurement phase?

The functions of equipment and proper care for them (A) Signup and view all the answers

Why are large triangles used in surveying according to the text?

To break down areas into smaller triangles for detailed surveys (C) Signup and view all the answers

What is one of the principles emphasized in the text regarding survey work?

Surveyors should maintain honesty and integrity throughout the process (C) Signup and view all the answers

Why is it important to check survey work frequently according to the text?

To ensure that errors are identified before completion (A) Signup and view all the answers

What distinguishes accuracy from precision in engineering surveying based on the text?

Accuracy involves small standard errors with closely grouped observations (C) Signup and view all the answers

Why is it preferable to aim for accuracy over precision in survey work according to the text?

To match the standard accuracy with the size of the final drawings (D) Signup and view all the answers

How does economy of accuracy influence the choice of equipment in survey work?

Equipment should match the order of precision needed for the task (C) Signup and view all the answers

What should assistants do in relation to survey instructions according to the text?

Listen carefully to instructions and carry them out without questions (A) Signup and view all the answers

Why should frequent checks be applied to every calculation procedure as per the text?

To ensure reliability by identifying any calculation mistakes (C) Signup and view all the answers

What should survey records and computations be like based on the text?

Complete, clean, and clear to enable easy understanding by others (C) Signup and view all the answers

Why should pegs be moved and sight rails altered during check measurements according to the text?

To ensure errors are spotted and corrected during check measurements (A) Signup and view all the answers

In what manner should field computations be planned and carried out according to the text?

In a systemic manner with careful planning before calculations start (A) Signup and view all the answers