# geoinformatics 2 - model paer ```CIVIL ENGINEERING
Paper: GeoInformatics I
Paper Code: ETCE206
Semester: IV
Marks: 75
Note: All questions are compulsory.
Q.1
Define the following: -
(5X5)
(A) Azimuth
(B) Right Ascension
Q.2
Explain Remote Sensing.
Q.3
Explain law of weights.
Q.4
Difference between G.P.S. &amp; C.I.S.
Q.5
Explain eye &amp; object correction.
UNIT 1
Q.6 An instrument was set up at P &amp; the angle of elevation to a vane 4m above
the foot of the staff held at Q was 9030’. The horizontal distance between P &amp; Q
was known to be 2000 meters. Determine the R.L. of the staff station Q. given
that the R.L. of the instrument axis was 2650.38.
(6.5)
Q.7 The following are mean values observed in the measurement of three
angles A, B, C at one station
A = 76042’46.2” with weight 4
A+B = 134036’32.6” with weight 3
B+C = 185035’24.8” with weight 2
A+B+C = 262018’10.4” with weight 1
Calculate the most probable value of each angle.
(6)
UNIT 2
Q.8
Explain the setting out of a tunnel.
(6)
Q.9
What is Mine survey? Explain in detail.
(6.5)
UNIT 3
Q.10 Explain any two coordinate system of field Astronomy.
(6)
Q.11 What will be the L.N.T. of upper &amp; following lower transit at a place in
longitude 162030’W of a star whose R.A. is 22hrs11min30sec. If G.S.T. of previous
G.N.N is 10hrs30min15sec.
(6.5)
UNIT 4
Q.12 Explain Electro Magnetic Spectrum in detail?
(6)
Q.13 Explain Combined effect of till &amp; relief?
(6.5)
```