Janardan Rai Nagar Rajasthan Vidyapeeth 2006 B.Tech Civil Engineering SURVEYING - II - Question Paper
JRN Rajasthan Vidyapeeth University
CIVIL ENGINEERING
SEMESTER 4
SURVEYING - II
Model Question Paper
BSC9 SURVEYING - II
Duration : 3 Hrs. Maximum Marks : 75
Instruction:
1. Question paper is divided into Group A, Group B and Group C
2. Each Group is of 25 Marks
3. Figure to the right in bracket indicate marks.
4. Good Handwriting is expected
Group A (25 Marks)
Answer any three questions (Question 1 is compulsory)
(5)
Q.1: Explain the principle of indirect leveling?
(10)
Q.2: Explain the difference in elevation by reciprocal
observations?
(10)
Q.3: Explain the principle of Bimetallic Thermometer?
(10)
Q.4: Explain the characteristics of contours?
(10)
Q.5: Explain the terms
(i) Preliminary survey, (ii) Location survey, (iii) Construction survey
Group B (25 Marks)
Answer any three questions (Questions 6 is compulsory)
(5)
Q.6: The top (A) of a chimney was sighted from two stations
P and R at very different levels, the stations P and R being in the line with
the top of the chimney. The angle of elevation from P to the top of the chimney
was 38O21 and that from R to the top of the chimney was 21O18.
The angle of elevation from R to a Vane m above the foot of the staff held at P
was 15O11. The heights of the instrument at P and R were 1.87m and
1.64m respectively. The horizontal distance between P and R was 127m and the reduced
level of R was 112.78m. Find the R.L. of the top of the chimney and the
horizontal distance from P to the chimney.
(10)
Q.7: Two triangular stations A and B are 60 kilometers a
part and have elevations 240m and 280m respectively. Find the minimum height of
signal required at B so that the line of sight may not pass near the ground
than 2 meters. The intervening ground may be assumed to have a uniform
elevation of 200 meters.
(10)
Q.8: Calculate the Sag correction for a 30m steel tape
under a pull of 100N in three equal spans of 10m each. Mass of 1 cubic cm of
steel = 7.86g. Area of cross section of tape = 0.08 sq.cm.
(10)
Q.9: It is desired to find the weight of the tape by
measuring its sag when suspended in catenary with both ends level. If the tape
is 20m long and the sag amounts to 20.355cm at the mid span under a tension of
100N, what is the weight of the tape?
(10)
Q.10: Correct the observed altitude for the height of signal,
refraction and curvature from the following data observed altitude - +2O4839,
height of instrument = 1.12m, height of signal = 4.87m, horizontal distance =
5112m coefficient of refraction = 0.07m, RSin1 = 30.88m.
Group C (25 Marks)
All Questions are Compulsory.
Q.11 Fill in the blanks ( each question carry 2 marks)
(i) Triangulation method of Geodetic surveying is based on the simple ____________ principle.
(ii) For very flat / densely wooded country where triangulation is not possible _____________ cab
be adopted.
(iii) The relative frequencies of errors of different extends that are likely to occur are shown in the
form of curve known as ________________________.
(iv)Difference between the observed value & true value of the quantity called a________________.
(v) The object of plane trigonometrically leveling may be to determine the _______________ of
certain objects.
Q.11 Multiple choice question. (Each question carry 2 marks)
(i)Night signals are used for observing
(a) Angles of Triangulation system during the night time.
(b) Angles of Quadrilateral system during the day time.
(c) Angles of Triangulation system during the day time.
(d) Angles of Tetrahedral system during the night time.
(ii) Most probable error is a quantity to be added to or subtracted from the most
(a) probable
value
(b) average value
(c) greater value
(d) Smaller value
(iii) Precision is a measure of the
(a) Reproducibility (b) Interchangebility
(c) Both a & b (d) None of these
(iv) Application of photogrammetry is
(a) Preparation of small scale maps
(b) For photography purpose
(c) Both a & b
(d) None at these
(v) In obligue photographs angle tilt is in betbeen
(a)30 to 900
(b)20 to700
(c) 40 to 1000
(d) none of these
Q.11. (C) Indicate whether following statements are True or False (Each question carries 1 marks, Total = 5 Marks)
(i) The triangular station should be permanently marked with copper or bronze tablets.
l1w12 24
(ii) In Jaderins method, the measuring tripods are aligned
and set at a distance approximately equal to the length of the tape.
(iii) In
normal tension the correction for sag is
(iv) Topographic surveying is the process of determining the positions both on plan and elevation.
(v) Construction survey is the ground location of proposed line marked on the map.
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| Earning: Approval pending. |
