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POLYTECHNIC OF NAMIBIA Department of Land Management
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School School of Natural Resources and Tourism (SNRT)
Department
Programmes
Course
NQF Level
Examiner
Date
Duration
Department of Land Management (DoLM)
Diploma in Geomatics Programmes Bachelor of Science in Codes Geomatics
Basic Surveying Course Code
Level 5 NQF Credits
Mr. F J Louw Moderator
June 2014 Opportunity
3 hours Marks
QUESTION PAPER
Second Opportunity
27DGEM 27BSGE
BSV521S
12
Mr. E Sinvula
2na Opportunity
100 Marks
• The question paper consists of 8 pages (Including this Front Page and 3 Data
Sheets)
• Read the entire question paper before answering the Questions
• Please write clearly and legibly!
• You MUST answer ALL QUESTIONS
• Make sure your Student Number is on the EXAMINATION BOOK(s)
• Make sure your Student Number is on all the Data Sheets and that you submit
them with your EXAMINATION BOOK(s)
• Calculators may be used as well as other drawing equipment
Basic Surveying
Question 1
a) List ANY TWO branches of surveys and explain what each one entails.
b) Distinguish between an Observation and a Measurement.
c) What are the purposes of a Reference Object (RIO)?
d) Explain the term Reconnaissance in terms of traversing.
e) Name any THREE requirements for a traverse station.
f) Write short notes to explain the meaning of the following terms:
i) Bench Mark
ii) Error
iii) Map
iv) Polar
Question 2
BSV521S
(4)
(2)
(3)
(4)
(3)
( 1)
(1)
(1)
(1)
[20]
a) Use the information on Data Sheet 1 to calculate Final co-ordinates for the traverse
points TR1 and TR2. If any adjustments are required, use the Bowditch Rule to
adjust. (1 0)
b) Reduce the levelling notes given on Data Sheet 2 using the "Collimation Method"
method to determine the final heights. All checks need to be shown and any
misclosure needs to be distributed. (1 0)
[20]
Second Opportunity Examination Page 2 of 8 June 2014
Basic Surveying BSV521S
Question 3
a) Given the field book below calculate final observed directions from the circle left and
circle right observations which were observed at FJL (No orientation correction
needed). Show in column format. (6)
@FJL HI= 1.732m
Point/Station Circle Left Circle Right
b. Steel 120° 14' 55" 300° 15' 02"
b. Pan 191° 27' 41" 11 ° 27' 48"
b. Stone 211 ° 41'33" 31 ° 41' 38"
Mast 289° 53' 07" 109° 52' 55"
RO 120° 14' 58" 300° 15' 05"
b) Use the information on Data Sheet 3 to determine oriented directions for the traverse
BM1 00, S, T, and BM1 01 . The calculations should be done by completing the
direction sheet. (14)
[20]
Question 4
a) Use the data below to calculate the co-ordinates of Koppie using Collins Q-point method. (20)
Co-ordinates
Name ilKOBUS ilLEPEL ilSLAAI @ Koppie
ilSLAAI ilLEPEL ilKOBUS
y + 33 252.460 +53 689.320 + 27 619.400
X + 182 505.030 + 203 390.460 + 194 045.970
270° 00' 01 " - Long Leg 46° 08' 52" - 1st Leg
15r 03' 18"- 2nd Leg
Second Opportunity Examination Page 3 of 8
[20]
June 2014
Basic Surveying BSV521S
Question 5
a) Point P1 is at a reduced horizontal distance of 819.157 metres from RM1 and on a
direction which can be reduced from the following horizontal angular observations.
Calculate the co-ordinates of P1. Show in column format. (9)
Co-ordinates
Name
RM1
11 Trig B
11 Trig C
@RM1
Point/Station
!:::. Trig B
11 Trig C
P1
y X
-2 756.460 +18 445.000
-1 961.570 +14 268.710
-6 520.650 +18 443.800
HI= 1.656m
Fin. Observed Dir.
169° 13' 53"
269° 59' 22"
101 ° 43' 19"
b) Use the information below to calculate the mean co-ordinates of working station
Dam.
@Dam
Point
Beacon 1
@Dam
Point
11Buamis
Beacon 2
HI= 1.580m
Final Observed Direction
HI= 1.595m
Final Observed Direction
162°48'31"
298°12'56"
Second Opportunity Examination Page 4 of 8
(11)
Final Reduced Horizontal Distance.
49.065m
Final Reduced Horizontal Distance.
76.856m
June 2014
Basic Surveying BSV521S
Co-ordinates
Name y X
t1Win -11 071 .260 +64 410.770
t1Buamis - 5 533.620 +53 318.300
Beacon 1 - 7 751 .067 +60 651 .665
Beacon 2 - 7 863.582 +60 667.863
[20]
Second Opportunity Examination Page 5 of 8 June 2014
Basic Surveying BSV521S
Student Number ________ _ _ Data Sheet 1
Question 2.a)
Bowditch Adjustment Sheet
Note: All answers must be rounded off to 3 decimal places
DIRECTION (/) z
& 0 DISTANCE --, DIFFERENCES STATION FINAL COORDINATES
11Y 11X y X MOEG +36 998.912 + 191 298.043
352° 49' 52" (/)
898.985m c "5 --,
TR1 Q)
26° 02' 45" -ro -886.156m ::I
(.)
ro TR2 0 344° 50' 28" I-
896.358 0 z 0 WHITE +37 041.463 + 193 851.295 0
Second Opportunity Examination Page 6 of 8 June 2014
Basic Surveying
Student Number _ ________ _
Question 2.b)
Levelling Sheet
NOTE: The BOLD and Underlined values are the Inverted Staff Readings.
BSV521 S
Data Sheet 2
Round to the nearest 3 (0.000) decimal places. Mar in for error= +/-0.005
Reduced Point B.S. I.S. F.S. Coli. Height Level Corr. Final Level
BM1 2.357 1533.458
1 1.455
2 1.565 1.950
3 1.752 2.357
4 3.153
5 0.833
6 2.980 0.875
BM 2 1.555 1533.791
Second Opportunity Examination Page 7 of 8 June 2014
Basic Surveying BSV521S
Student Number ________ _ Data Sheet 3
Question 3.b)
Direction Sheet
FIN. OBS. PROV. PROV. PROV. JOIN DIR./ JOIN/FINAL STATION DIRECT. BACK CORR. FORWARD FIN. CORR. DIRECTION
I@BM 100
セ@ DUP 13]D 03'21" 13r 03' 17" セ top@ 274° 01' 22" 274° 0 1' 09"
s 236° 49' 27"
@S
BM100 56° 4 9' 25" T 238° 16' 29"
@T
s 58° 16'31" BM 101 245° 4 7' 44"
I@BM 101
セ water@ 315°5 7'20" 315° 56' 54" セ dune@ 129° 08' 47" 129° 08' 21 "
T 65° 4 7' 50"
Second Opportunity Examination Page 8 of 8 June 2014