Lesson 3.3 Reference Survey

What are points appropriately marked on the ground with an established horizontal and vertical position?

What is the purpose of tying property surveys to the reference points identified in Lesson 3.1?

What DENR memorandum contains Sections 126–128 governing the connection of surveys to reference points?

What sections of DMC 2010-13 stipulate the rules and regulations in connecting surveys to reference points to set the permanent position of Lot Corners?

What section of DMC 2010-13 deals with Tie Lines?

What section of DMC 2010-13 deals with Connection of Surveys?

What section of DMC 2010-13 deals with Common Point?

What is a straight line with known bearing and distance expressed in degrees, minutes, and seconds computed based on the position of corner 1 of the lot from an established reference monument?

What section defines a tie line as a straight line with known bearing and distance computed from an established reference monument?

What type of traverse shall be used to tie tracts to be surveyed to the nearest points of reference?

To what points shall tracts to be surveyed be tied by a closed traverse?

Which section of DAO 2007-29 identifies the kinds of Reference Monuments to which tracts may be tied?

What may be used as a reference when corner-markers of an approved survey are available?

What condition must be satisfied before corner-markers of an approved survey may be used as reference?

How many available corner-markers of an approved survey are required to establish a common point when they are used as reference?

What qualities must the corner-markers used to establish a common point have?

What may be used as reference if no corner markers of an approved, decreed, or patented survey can be found on the ground?

How many corner-markers of a nearby approved, decreed, or patented survey are required when no corner markers of the subject survey can be found?

What must be established before nearby approved/decreed/patented survey corner-markers can be used as reference?

What section of DMC 2010-13 requires all surveys to be adequately connected to existing surveys?

What shall all surveys be adequately connected to?

What must be considered when determining the position of a survey in relation to existing surveys?

To what type of reference points shall the survey be adequately connected when they exist in close proximity to the survey?

What section of DMC 2010-13 governs the selection of a common point when a previous survey and the survey in progress overlap or adjoin each other?

When shall a common point be selected?

From what shall the common point be selected?

What is the first factor considered when selecting a corner to be adopted as a common point?

What is the second factor considered when selecting a corner to be adopted as a common point?

What data are used to determine the degree of precision between the computed positions of corner monuments?

What is generally preferred as a common point when it was used as a corner in an approved survey, is identified beyond doubt, and is not likely to have been removed?

Why is a living tree, boulder, or other permanent object preferred over concrete stone or other monuments as a common point?

What must be done when monuments of approved surveys appear to have been moved?

Where shall the observation of a moved monument be recorded?

What shall be done to monuments of approved surveys that appear to have been moved?

When may monuments of an approved survey be used as witness monuments to the true corners?

What happens when the position of a corner of an approved survey and its position determined in a later survey is within the allowable position of error?

What determines whether the position of an earlier survey corner shall be accepted in a later survey?

What section and issuance provide the allowable position of error referred to when comparing an earlier and later survey?

What must the geodetic engineer do when the discrepancy in position exceeds the allowable limits?

What must be prepared after verifying a discrepancy that exceeds the allowable limits?

To whom shall the complete report on discrepancies and verification results be submitted?

Through whom shall the report on discrepancies and verification results be submitted?

Who makes the necessary verification when the discrepancy in position exceeds the allowable limits?

What happens when the recovered corner of the previous survey is not identical to its description in the plan?

Who shall investigate a recovered corner that is not identical to its description in the plan?

What must be done with the result of the investigation of a recovered corner that differs from its plan description?

What section of DAO 2007-29 governs the accuracy of cadastral surveys?

What factors shall guide the GE in selecting surveying methods and equipment for cadastral surveys?

What accuracy is required for the establishment of controls and municipal political boundary surveys?

What accuracy is required for Barangay Boundary Surveys?

What type of accuracy is required for the standard traverse closure of lot surveys in cadastral surveys?

What survey class is governed by Section 30 of DAO 2007-29?

What types of isolated surveys shall use equipment and methods that meet tertiary control accuracy?

What accuracy shall be met for original isolated surveys?

What accuracy shall be met for subdivision isolated surveys?

What accuracy shall be met for consolidation isolated surveys?

What accuracy shall be met for consolidation-subdivision isolated surveys?

What is the allowable position of error for a Relocation/Verification Survey?

What is the allowable difference in area for a Relocation/Verification Survey?

What section of DAO 2007-29 governs isolated survey accuracy?

What survey type covers surveys of mineral lands executed for mineral agreements or other purposes pursuant to the Mining Act of 1995?

What accuracy is required for Mineral Land Surveys?

What section of DAO 2007-29 governs Mineral Land Survey accuracy?

What law is cited in relation to surveys of mineral lands?

What survey type involves the delimitation of forestland and National Park/Protected Areas?

What determines the survey control accuracy for Forestland and National Park/Protected Areas Delimitation Surveys?

How shall the perimeter survey for Forestland and National Park/Protected Areas Delimitation Surveys be undertaken?

What section of DAO 2007-29 governs Forestland and National Park/Protected Areas Delimitation Surveys?

What type of survey accuracy applies to the perimeter survey of Forestland and National Park/Protected Areas?

What type of control connects location monuments from previously established reference points according to the project control survey specification?

From what shall location monuments be connected by a control of secondary precision?

What is the maximum distance that any lot shall have from the nearest reference point according to the project control survey specification?

What is the maximum distance allowed between a lot and the nearest reference point?

What survey topic involves determining closure in latitude and departure?

What type of error is determined from the closure in latitude and departure?

What ratio is determined in the assessment after obtaining the Linear Error of Closure?

What three previous lessons are recommended for review in the Learning Tasks?

What type of traverse is used in the assessment to tie an isolated property to a reference point?

What survey type is used in the assessment involving the closed traverse and reference point?

What measurements are required in the closed traverse assessment table?

What is the bearing of line AB in the assessment traverse?

What is the distance of line AB in the assessment traverse?

What is the bearing of line BC in the assessment traverse?

What is the distance of line BC in the assessment traverse?

What is the bearing of line CD in the assessment traverse?

What is the distance of line CD in the assessment traverse?

What is the bearing of line DE in the assessment traverse?

What is the distance of line DE in the assessment traverse?

What is the bearing of line EA in the assessment traverse?

What is the distance of line EA in the assessment traverse?

What must be determined from the closed traverse field data in the assessment?

What must be checked after determining the Linear Error of Closure in the assessment?

What must be checked after determining the Relative Error of Closure in the assessment?

What should be done when answering the assessment problems involving Linear Error of Closure and Relative Error of Closure?

What type of corner marker is specifically used as a scenario in the first assessment question?

What question is asked regarding a living tree identified as one of the three corner markers by the property owner?

What must be provided when answering the assessment question concerning the living tree?

What type of survey is the main context of Lesson 3.3?

What are the two learning outcomes of Lesson 3.3?