UNIT- I:
INTRODUCTION AND CHAIN SURVEYING
- Define Surveying.
- State two primary divisions of surveying.
- State the basic principles of surveying.
- State the basic assumptions of plane surveying.
- Differentiate between plan and map.
- Enumerate the essential elements of a map.
- What are the classifications of survey?
- Define “significant
figures” and “rounding off” of a measurement. Explain their relevance in
surveying.
- List the different types of errors in survey
measurement and state their significance
- Describe how you would
range a survey line between two stations which are not inter-visible?
- What are the equipments used to measure right
angle in the chain surveying?
- Enumerate the instruments used for measurement
of lengths of survey lines
13. Distinguish
between perpendicular offset and oblique offset, with neat sketches.
- Which of the following scale is the smallest
and largest respectively:
(i) 1 cm = 10
meter. (ii) 1: 10,000. (iii) R.F=1/100, 000 (iii) 1cm=1000 Km
- The distance between two stations were repeated
10 times and observed to be as follows: 500.335m, 500.360m; 501.345m,
500.395m, 500.420m, 500.355m, 500.315m, 500.360m, 500.415m, and 500.325m.
Justify, if there is any observation having gross error.
- Illustrate with neat sketches, various types of
obstacles encountered in chain surveying.
- A survey line PQ
intersects a pond. To overcome these obstacle two stations A and B were
taken on either side of the pond. A line AC, 90 m long was laid down on
the left of AB, and a second line AD, 130 m long was laid down on the
right of AB. If points C, B and D are on the same straight line and CB =
75 m and BD = 78 m, determine the length AB.
UNIT- II:
COMPASS SURVEYING AND PLANE TABLE SURVEYING
18. Tabulate the
differences between different types of meridians along with differences in
their utilities.
19. What is
magnetic declination?
- What do you understand by
plane table survey? What are the advantages and dis-advantages of Plane
Tabling? List the different accessories used in plane tabling along with
their uses.
- Describe the steps involved in setting up of a
Plane Table.
- Explain the different
operation involved in temporary adjustment of plane table surveying.
- Enumerate the different
types of plane tabling and highlight the topographical conditions under
each is generally used.
- Describe the method of orientation of plane
table by Back sight method.
- Define "three point problems" in
Plane Tabling.
- What do you understand by "Trial and
Error" method of solving three point problems?
- Explain the basic
Lehmann's Rule for reducing the number of trials. Further, state the
additional rules for special cases.
- Define Bearing.
- Define Dip and Declination
- Define local attraction
- Define W.C.B.
- What is the use of plane table Survey?
- Draw and explain the prismatic compass.
- Write merits and demerits of the plane table.
- Explain the instruments used in plane table
surveying
- Explain two point problem with diagram
- Explain Bessel’s method with diagram.
- Define ‘bearing of lines’ and ‘true meridian’
in compass surveying.
- What is ‘orienting the table’ in plane table
surveys?
- What do you understand by Quadrantal bearing of
a line?
- What is plane table surveying? When is it
preferred?
- A survey line AB crosses a river obliquely. P
and Q are two points selected on the line one at each end of the river.
Another line EPF is run parallel to the centre line of the river and point
E is such that angle QEP is right angle and EP = PF = 100 m. A third point
G is set at a distance of 150 m from P such that angle GFP is also right
angle. Compute the distance PQ.
- The magnetic bearing of a
line was found to be N 60° 30' W in 1992, when the declination was 5° 10'
E. find its present magnetic bearing, if declination is 3° W.
44. At what
stations local attraction is suspected? Determine the correct bearings of the
traverse legs and also calculate the included angles.
- What are the precautions to be adopted in using
the Compass?
- The bearings of the sides of a traverse ABCDE
are as follows :
|
Side
|
Fore
bearing
|
Back bearing
|
|
AB
|
107º 15'
|
287º 15'
|
|
BC
|
22º 0'
|
202º 0'
|
|
CD
|
281º 30'
|
101º 30'
|
|
DE
|
189º 15'
|
9º 15'
|
|
EA
|
124º 45'
|
304º 45'
|
Compute the
interior angles of the traverse.
UNIT- III:
LEVELLING AND APPLICATIONS
47. Why levels
are usually called as “spirit level”?
- Explain the importance of level tube in a
leveling instrument.
- Explain the chief feature of a digital level.
- State the differences in the temporary
adjustment of a dumpy level and an IOP level.
- State the difference between a dumpy level and
a digital level.
- Enumerate the order in which the permanent
adjustment of a tilting level are carried out.
- Describe the two peg
method of permanent adjustment of a dumpy level State and explain the
basic principle of leveling.
54. Enumerate
the difference between rise and fall method (of reduction of level) and height
of instrument method.
55. Enlist the
classification of leveling.
56. What are the
special features of precise system of leveling?
57. What are the
uses of contours?
58. How do you
compute the reservoir volume?
59. Define
sensitivity of a bubble tube. State any two factors affecting the same.
60. Distinguish
between differential leveling and reciprocal leveling
61. What do you
understand by reciprocal leveling
62. What are the
different types of ‘levelling instruments’ used in leveling.
63. Data from a
differential leveling have been found in the order of B.S., F.S..... etc.
starting with the initial reading on B.M. (elevation 150.485 m) are as follows
: 1.205, 1.860, 0.125, 1.915, 0.395, 2.615, 0.880, 1.760, 1.960, 0.920, 2.595,
0.915, 2.255, 0.515, 2.305, 1.170. The final reading closes on B.M.. Put the
data in a complete field note form and carry out reduction of level by Height
of instrument method. All units are in meters.
64. A surveyor
standing on seashore can just see the top of a ship through the telescope of a
levelling instrument. The height of the line of sight at instrument location is
1.65 meter above msl and the top of ship is 50 meter above sea level. How far
is the ship from the surveyor?
65. In levelling
between two points A and B on opposite banks of a river, the level was set up
near A and the staff readings on A and B were 1.60 m and 2.44 m respectively.
The level was then moved and set up near B, and the respective readings on A
and B were 0.70 and 1.26. Find the true difference of level between A and B.
66. Explain
profile leveling with suitable example.
67. Enlist and
explain the types of errors in leveling.
- The following perpendicular offsets were taken
from a chain line to a hedge :
|
Chainage in m
|
0
|
10
|
20
|
40
|
60
|
|
Offset in m
|
6.10
|
7.63
|
4.58
|
5.49
|
8.54
|
Calculate the area between the chain line and the
hedge using Simpson’s method. 27. Write about the Prismoidal Correction to be
applied to volume computation.
UNIT- IV:
THEODALOITE SURVEYING
69. Enumereate
the different parts of a vernier theodolite and explain their function.
- Differentiate between Clamp screw and Tangent
screw.
- What do you mean by temporary 'adjustment' of a
theodolite ?
- Describe in breif the steps of temporary
adjustment in proper order.
- Enumerate the fundamental
lines of a theodolite instrument and state their relationship in a
permanently adjusted instrument
- Explain the use of ‘Bowditch’s rule’ in
traverse computation.
75. Name the
different cases of ‘omitted measurements’ in theodolite surveying.
- How is a simple curve set out by using one
theodolite and one chain?
- Name the two methods of measuring horizontal
angles using a theodolite.
- What is an anallatic lens?
- In order to reduce the
error in measurement of vertical angle a set of measurements are taken and
find the average angle as 9° 02' 05? form a height of instrument as 1.565m
to a target height 2.165m. If the elevation of the instrument station is
189.250m above mean sea level, find the elevation of staff station. Assume
any data, if required.
80. State and
explain omitted measurements in theodolite surveying.
- The interior angles of a
closed traverse ABCDEF are as follows : , 60º 40'; , 201º 38'; , 93º 19';
, 69º 48'; , 210º 13' and , 84º 22'. Compute the deflection angles of the
traverse.
UNIT- V:
ENGINEERING SURVEYS
82. Briefly
explain ‘reverse curves’ and ‘shift of a transition curve’
83. State the
relationship between the radius of a curve and the degree of the curve.
84. What are
transition curves?
85. Calculate
the salient elements of the simple circular curve. Considering the chainage of
point P to be 1000 m.
86. Two tangents
intersect at chainage 2380 m, the deflection angle being 50° 30'. Compute the
necessary data for setting out a 5.7° curve to connect the two tangents if it
is intended to set out the curve by Rankine's Method of tangential angles. Take
the length of the normal chord as 30 m. Also, tabulate the values of the
deflection angles for setting out with a theodolite having least count of
20".
87. Two
straights AB and BC meet at an inaccessible point B. They are to be connected
by a simple circular curve of 500 m radius. Two points P and Q are selected on
AB and BC respectively, and the following data are obtained: RAPQ = 157° 22' ;
RCQP = 164° 38' ; PQ = 200 m.
88. Calculate
the necessary data for setting out the curve by the method of deflection angle.
The nominal length of chord is 30 m. assume any data missing.
89. A transition
curve of length 230 m joins a straight to a circular curve of radius 800 m.
What is the angle turned by the transition curve and what is the necessary
shift?. Find the length of offset to the transition at a distance 150 m from
the short along the tangent.
90. Two
straights AB and BC intersect at chainage 1000 m, the deflection angle being
40°. It is proposed to insert a right-handed circular curve 400 m radius with a
cubic parabola of 90 m length at each end. The circular curve is to be set out
with pegs at 20 m intervals and the transition curves at 10 m intervals. Find
the
91. Chainage at
the begining and end of the combined curve
92. Chainages at
the junction of the transition curve with circular curves
93. tangential
angles for the first two points on the first transition curve
94. tangential
angles for the first two points on the circular curves
95. Enumerate
the classification of curves in engineering surveys.
96. Two
straights intersect at a deflection angle of 80? and are connected by a
circular curve of radius 10 chains. Find the length of ‘each end tangent’, the
‘curve’, and the ‘long chord’, the Apex distance; the ‘Mid ordinate of the
curve’ and the ‘Degree of the curve’.
