Q.1
The stereo plotting instruments are generally manufactured on the principle of
  • Optical projection
  • Optical mechanism projection
  • Mechanical projection
  • All the above
Q.2
A star is said to elongate
  • When the star momentarily moves vertically
  • When the angle at the star of the spherical triangle is 90°
  • When the star
  • All the above
Q.3
For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through
  • Isocenter
  • Plumb point
  • Principal point
  • None of these
Q.4
Longitude of a place is the angular distance between the meridian of the place and
  • The standard meridian
  • The International Date Line
  • That of Greenwich
  • Both (A) and (C) of above
Q.5
The correction applied to the measured base of length ‘L’ is
  • Tension = (P - Ps)L/AE
  • Sag = L³w²/24P² where w is the weight of tape/m
  • Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports
  • All the above
Q.6
Which of the following is not the function of levelling head ?
  • to support the main part of the instrument
  • to attach the theodolite to the tripod
  • to provide a means for leveling the theodolite
  • none of the above
Q.7
The Polaris describes a small circle round the pole whose radius is approximately
  • 1°
  • 2°
  • 3°
  • 4°
Q.8
The allowable length of an offset depends upon the
  • degree of accuracy required
  • method of setting out the perpendiculars and nature of ground
  • scale of plotting
  • all of the above
Q.9
The zenith is the point on the celestial sphere
  • East of observer
  • West of observer
  • North of observer
  • South of observer
Q.10
The Polaris remains below horizon at
  • 10° N
  • 50° N Latitude
  • Equator
  • 5° S latitude
Q.11
The error due to eccentricity of inner and outer axes can be eliminated by
  • reading both verniers and taking the mean of the two
  • taking both face observations and taking the mean of the two
  • double sighting
  • taking mean of several readings distributed over different portions of the graduated circle
Q.12
Overturning of vehicles on a curve can be avoided by using
  • compound curve
  • vertical curve
  • reverse curve
  • transition curve
Q.13
From the principal point the horizon point lies on the principal line at a distance of
  • f tan θ
  • f sin θ
  • f cot θ
  • f cos θ
Q.14
Closed contours, with higher value inwards, represent a
  • depression
  • hillock
  • plain surface
  • none of the above
Q.15
In the double application of principle of reversion, the apparent error is
  • equal to true error
  • half the true error
  • two times the true error
  • four times the true error
Q.16
If the length of a chain is found to be short on testing, it can be adjusted by
  • straightening the links
  • removing one or more small circular rings
  • closing the joints of the rings if opened out
  • all of the above
Q.17
The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is
  • B = bH/f
  • B =f/bH
  • B = b/fH
  • B = H/bf
Q.18
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
  • By subtracting their longitudes if places are in the same hemisphere
  • By adding their longitudes if places are in the different hemispheres
  • By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
  • All the above
Q.19
In a spherical triangle ABC right angled at C, sin b equals to
  • sin c sin B
  • cos c cos B
  • tan c tan B
  • sin c cos B
Q.20
cm ×cm photographs are taken from a flying height with a camera of focal length ofm and 15.cm respectively. A parallax difference of 0.mm represents
  • 1 m
  • 2 m
  • 4 m
  • 8 m
Q.21
If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is
  • πR²E/90°
  • πR²E/180°
  • πR²E/270°
  • πR²E/360°
Q.22
The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
  • Satellite station
  • Eccentric station
  • False station
  • Pivot station
Q.23

While setting a plane table at a station it was found that the error in centering wascm away from the ray of lengthm drawn from the station. If the scale of the plan is 1 cm = 2 cm, the displacement of the end of the ray in plan from the true position will be

  • 0.02 cm
  • 0.15 cm
  • 02 cm
  • 0.1 cm
0 h : 0 m : 1 s