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Egs 2102 Surveying I Question Paper

Egs 2102 Surveying I

Course:Bachelor Of Science In Geospatial Information Science

Institution: Dedan Kimathi University Of Technology question papers

Exam Year:2014

DEDAN KIMATHI UNIVERSITY OF TECHNOLOGY
UNIVERSITY EXAMINATIONS 2012/2013
FIRST YEAR END OF SECOND SEMESTER EXAMINATION FOR THE DEGREES OF BACHELOR OF SCIENCE IN GEOMATIC ENGINEERING AND GEOSPATIAL INFORMATION SYSTEMS, AND THE BACHELOR OF SCIENCE IN GEOSPATIAL INFORMATION SCIENCE
EGS 2102 SURVEYING I
APRIL 2013 TIME: 2 HRS
INSTRUCTIONS: Answer QUESTION ONE and any OTHER TW0 questions.
1 Question one (1), 30 marks
a. What is the relationship between traditional surveying and Geomatics (1 mk)
b. Differentiate between tie lines and offsets (2 mks)
c. Define plane table surveying (1 mk)
d. Mention the types of adjustments carried out on levels. (2 mks)
e. What are the properties of contour lines? (3 mks)
f. Name the types of precise levels used in precise leveling. (3 mks)
g. Identify the main factors influencing pressure differences between given points. (3 mks)
h. The table below shows a sample of a booking sheet undertaken during the surveying of a road to be constructed. The leveling started at bench mark A and ends at the bench mark I. use the rise and fall method to complete the level book and apply the necessary checks. (8 marks)
STN
DIST
BS
IS
FS
RISE
FALL
REDUCED LEVELS
REMARKS
A
0
0.44
BENCHMARK
B
100
1.64
C
200
2.94
D
300
0.17
3.98
E
400
2.12
F
500
0.32
4.11
G
600
0.54
3.88
H
700
0.11
4.08
I
800
3.96
1673.09
BENCHMARK
i. Differentiate between systematic errors and blunders (2 mks)
j. List the major sources of error in leveling (3 mks)
k. Differentiate between the line of sight and the line of collimation. (2 mks)
2 Question two, 20 marks
a. During the construction of an underground tunnel, invert levels were observed as shown below
The staff readings at the staff positions A, B, C, D and E were as follows:
POINT
STAFF READING
A
3.22
B
2.14
C
1.09
D
2.16
E
3.42
A
B
C
D
E
Fill the data in the field book and reduce the leveling network using the height of collimation method. Find the reduced levels A, B, D and E if the reduced level of C is 273.78 m above mean sea level? Carry out the necessary checks. (12 mks)
b. List and briefly describe the various types of levels used in leveling. (8 mks)
3 Question three, 20 marks
a. Define the following terms: (4 mks)
i. Horizontal surface
ii. Vertical plane
iii. Datum surface
iv. Minus sight
b. A distance of 475.28 m was measured along a smooth slope. The slope angle was measured and found to be 5°22’. What is the horizontal distance? (4 mks)
c. Describe the errors that may be encountered during precise leveling, mentioning how each may be eliminated. (12 mks)
4 Question four, 20 marks
a. How can mistakes and errors be reduced in leveling? (5 mks)
b. Define altimetry. Why is it necessary (2 mks)
c. Describe the methods applied in altimetry heighting. (10 mks)
1. List down the main errors in plane table surveying. (3 mks)

Egs 2102 Surveying I Question Paper

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