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