Monday, September 05, 2016
Roil No.
Total No. of Question :09
B.TECH
(CE) (Sem.-3rd)
SURVEYING
Subject
Code: BTCE-304
Paper
ID: [A1116]
Time: 3 Hrs.
INSTRUCTIONS
TO CANDIDATES:
1.
Section –A is Compulsory.
3.
Attempt any two questions from Section-C.
SECTION
- A
Q.1.
Write briefly:
a)
Enumerate the various methods of chaining.
b)
What are the different types of chains?
c)
What are the temporary adjustment of a level?
d)
What are the different methods of contouring?
e)
What are the different methods of levelling?
f)
What is reconnaissance? List various methods of reconnaissance.
g)
Distinguish between local attraction and declination.
h)
What are the sources of error in levelling?
i)
Distinguish between a true bearing and magnetic bearing.
j)
Explain the elements of a curve.
SECTION
- B
Q2.
A 30 m chain was found to be 0.20 m to long after chaining 150m, it was found
to be 0.15 m to long after chaining 250 m. If the chain was correct before the
commencement of work, find the true distance
.
Q3.
Describe the various methods of plane tabling. Under what conditions each is
preferred.
Q4.
What do you understand by balancing the traverse. Describe any three methods of
adjusting
the
traverse.
Q5.
Explain the three-point problem along with a suitable example.
Q6.
Explain the method of determination of tachometric constants of a tachometer.
SECTION
– C
Q7.
A staff was held vertically at horizontal distance of 45m and 120 m from the
centre of a theodolite fitted with stadia hairs and the staff intercepts with
the telescope horizontal were 0.47 and 1.93 resp. The instruments was then set
over a station P of RL 30.25 and the height of instrument was 1.45 m. The hair
readings on the staff held vertically at a station were 1.20,1.93 and 2.6 m
while the vertical angle was 9030. Find the distance PQ and RL of Q.
Q8.
Write short note on
(i)
Obstacle in chaining
(i)
Bowditch's Rule
Q9.
Define the degree of a curve and derive the expression for it.
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