Download Geodetic Engineering Surveys: A Comprehensive Study Guide and more Exams Advanced Education in PDF only on Docsity!
DMC 2010 - 13 STUDY GUIDE WITH
COMPLETE SOLUTION
All Geodetic Engineering surveys shall be conducted using ______ - ANSWER survey grade GNSS receivers
(Geodetic Control Survey)
Project area selected shall be based on the recommendation of the__________concerned - ANSWER Regional Executive Director (RED)
(Geodetic Control Survey)
Survey Order as defined in Section 15 of DAO No. 2007-29 shall be issued by the - ANSWER NAMRIA Administrator
A copy of the ________ shall be transmitted to the contractor and shall signal the start of survey activities - ANSWER Contract with the Notice to Proceed
The date when the contractor received the said documents shall serve as the official date of - ANSWER Commencement of the Project
(Geodetic Control Survey Party 3 Basic Components)
a.) ________ for general supervision, coordination activities, administrative and other related matters. - ANSWER Project Main Office
Chief of Party shall be a - ANSWER licensed Geodetic Engineer
(Geodetic Control Survey Party 3 Basic Components)
b.) _______ for data research, computations, cartographic, and other related activities - ANSWER Office Operations
Manpower shall include computer literate personnel with knowledge on - ANSWER GNSS processing software.
(Geodetic Control Survey Party 3 Basic Components)
c.) _____ for reconnaissance, monument setting, observations, and other related activities. - ANSWER Field Operations
Field Operations are composed of - ANSWER 1) Survey Control Team
Reconnaissance and Monument Recovery Team
Monument Setting Team
All personnel in the three components mentioned (Geodetic Control Survey) shall be listed in the proposed - ANSWER Geodetic Control Work Plan
The Geodetic Control Work Plan shall be composed of - ANSWER Project Management and Technical Plans
The Work Plan with the aforementioned documents together with the sketch plan of the project site shall be forwarded to the ______ for approval before the commencement of the project - ANSWER NAMRIA
The approved Work Plan shall form part of the - ANSWER Survey Returns
Composed of:
1.) Geodetic Control Survey Party
2.) Financial Plan
3.) Equipment complement for the project and their corresponding allocation in the different phases of work, both in the office and in the field.
4.) The estimated duration of the project expressed in number of days as per
recovered/new
the conduct of survey shall start from an established _________ and shall end at another ________(check base) - ANSWER PRS 92 control point, PRS 92 control point
Baseline Length for the Primary Geodetic Network (First and Second Order) in accordance with the nominal space - ANSWER 1st Order - 50 kilometers
2nd Order - 25 kilometers
Secondary Geodetic Network (3rd and 4th Order) Baseline Length - ANSWER 3rd Order - 5 kilometers
4th Order - variable (each Barangay shall have at least a pair of Control Points not more than 2 kilometers apart)
The inter-visibility of stations are ________ in order to have a good Network Geometry in the GNSS observations - ANSWER not necessary
In the preparation of the Network Design, it is necessary that the points selected can be ________, located in a __________ and ____________ - ANSWER 1.)
occupied,
2.) located in a stable ground and
3.) shall not be affected by any construction activities in the near future
(Network Design Condition)
The lines connecting the control points within the network should create ________ with the __________, such as triangles that will create a rigid network. - ANSWER closed polygon,
minimum number of sides
(Network Design Condition)
The Network shall be designed so that all stations or points included therein have at least ________ known PRS 92 control points. - ANSWER three (3)
____________ of the area shall be conducted to determine if there are control points that need to be transferred from their proposed sites to strengthen weak geometric figures - ANSWER Reconnaissance
The position of reference points shall be defined and marked on the ground
Monument - ANSWER 30 x 30 cm
Top Cross Section of Second Order Accuracy Survey Control Monument - ANSWER 30 x 30 cm
Top Cross Section of Third Order Accuracy Survey Control Monument - ANSWER 25 x 25 cm
Top Cross Section of Fourth Order Accuracy Survey Control Monument - ANSWER 20 x 20 cm
Bottom Cross Section of First Order Accuracy Survey Control Monument - ANSWER 40 x 40 cm
Bottom Cross Section of Second Order Accuracy Survey Control Monument - ANSWER 40 x 40 cm
Bottom Cross Section of Third Order Accuracy Survey Control Monument - ANSWER 35 x 35 cm
Bottom Cross Section of Fourth Order Accuracy Survey Control Monument - ANSWER 35 x 35 cm
Length of First Order Accuracy Survey Control Monument - ANSWER 120 cm
Length of Second Order Accuracy Survey Control Monument - ANSWER 120 cm
Length of Third Order Accuracy Survey Control Monument - ANSWER 120 cm
Length of Fourth Order Accuracy Survey Control Monument - ANSWER 100 cm
Above Ground measurement of First Order Accuracy Survey Control Monument - ANSWER 20 cm
Above Ground measurement of Second Order Accuracy Survey Control Monument - ANSWER 20 cm
Above Ground measurement of Third Order Accuracy Survey Control Monument - ANSWER 20 cm
Above Ground measurement of Fourth Order Accuracy Survey Control
8 mm in diameter for ties
Concrete monuments ratio ______
____ cement
____ sand
____ gravel - ANSWER 1:2:
1 cubic meter/ bags cement
2 cubic meter/ bags sand
4 cubic meter/ bags gravel
Reference Monuments shall be marked on top with ______ letters - ANSWER engraved
Five Parts of Reference Monuments (Geodetic Control Survey) - ANSWER P C Y O O
1.) Provincial Code
2.) Control Point Number
3.) Year Established
4.) Order of Accuracy
5.) Office or Entity that Established the Reference Monument
The _____ shall be consulted for assignment of Code to the newly created provinces - ANSWER NAMRIA
The numbering of control points shall be from _____ for those established by _____ - ANSWER 1 to 3000; NAMRIA
The numbering of control points shall be from ______ for those established by LMB/LMS - ANSWER 3001 and so forth
The name of the office or entity that established the control point shall be inscribed using _____ word which could either be an _______, _______ or ________ - ANSWER only one;
a.) acronym
b.) company name
c.) surname of a person
To avoid duplication of numbers, the establishing entity (of a control point) shall coordinate with _______ for the _______ control points and with the concerned _______ for the ______ control points - ANSWER NAMRIA: First and Second Order
of more than ______ receivers is preferable. - ANSWER at least three (3);
more than four (4)
(Single Frequency) Baseline Length - ANSWER Up to 10 km
(Single Frequency) Mode of Positioning - ANSWER Limited to Static
(Dual Frequency) Baseline Length - ANSWER No Limitation
(Dual Frequency) Mode of Positioning - ANSWER a.) Static,
b.) Rapid Static,
c) Kinematic,
d.) Real-Time Kinematic (RTK
(GNSS Receiver)
There shall be no mixing of different ______ or even _____ - ANSWER receiver types; model
At no stage during the field observation should the Receiver be powered
_____, not even for a few seconds - ANSWER down
Changing of the batteries shall not be done during the observation as it will cause the Receiver to lose lock on satellites, which in turn will cause a major _____ - ANSWER cycle slip
______ shall be the stations that are common to two or more sessions - ANSWER Pivot sites
All receivers shall be set at the same logging interval (default is _______) - ANSWER 15 seconds
All receivers shall have the same elevation mask (default is ________) - ANSWER 13 degrees
All receivers shall be set at the same coordinate system:_________________ - ANSWER UTM, Zone 51 North, WGS
The Maximum PDOP shall be _____ and shall preferably less than _____ particularly for shorter observation such as Rapid Static. - ANSWER 7; less than 5
Interval between session: _______ - ANSWER 1 hour; At least 30 min
(Static Mode)
Single Frequency
Baseline Length: 5-10 km
Minimum Observation Time: ______
Session: 2
Interval between session: _______ - ANSWER 2 hrs; At least 30 min
(Static Mode)
Dual Frequency
Baseline Length: 10-20 km
Minimum Observation Time: ______
Session: 2
Interval between session: At least 30 min - ANSWER 1.5 hrs
(Static Mode)
Dual Frequency
Baseline Length: 20-30 km
Minimum Observation Time: ______
Session: 2
Interval between session: At least 30 min - ANSWER 2 hrs
(Static Mode)
Dual Frequency
Baseline Length: 30-50 km
Minimum Observation Time: ______
Session: 2
Interval between session: At least 30 min - ANSWER 3 hrs
(Static Mode)
No. of Satellite: 6
0-5 km Baseline Length: _________
5-10 km Baseline Length: _________ - ANSWER 10 min; 20 min
Connection to existing controls To Achieve 1st Order:
Minimum Observations: ________
Recommended Observations: _______ - ANSWER 3; 4 or more
Connection to existing controls To Achieve 2nd Order:
Minimum Observations: ________
Recommended Observations: _______ - ANSWER 2; 3 or more
Connection to existing controls To Achieve 3rd Order:
Minimum Observations: ________
Recommended Observations: _______ - ANSWER 2; 2
The ______ the number of the GDOP, the ______ the geometry for achieving an accurate point position - ANSWER lower; the better
While collecting data, the use of electronic device such as radio, cellphone, laptop, etc. within ______ from the GPS Receiver should be avoided - ANSWER 10 meters
Each of the recovered control points shall have both the ________ and ______ coordinates due to the possibility that a number of titled properties are tied to the said monuments. - ANSWER old PTM (PPCS) and PRS92 coordinates
Project Control Surveys shall be conducted in order to establish set of reference points for a Cadastral Survey, Public Land Subdivision Survey, Townsite Reservation, and other similar survey projects which cover a whole or a portion of _______ - ANSWER municipality or city
The survey instruments to be used for Project Control Surveys - ANSWER a.) Electronic Total Station (ETS)
b.) GNSS Receivers
c.) or combined GNSS/ETS.
If ETS surveying instruments are to be used, the control survey shall be conducted either by ________, ________ or any combination thereof referred
