Parallel to the principal line
Perpendicular to the principal line
Along the bisector of the angle between the principal line and a perpendicular line through principal plane
None of these
B. Perpendicular to the principal line
0.1 mm
0.5 mm
1.00 mm
1.1 mm
0.01 second
0.001 second
0.0001 second
None of these
Ground principal point
Ground plumb point
Iso-centre
Perspective centre
Normal to base line
Parallel to base line
Both (a) and (b)
Neither (a) nor (b)
Opposite corners of a photograph
Nodal points of the camera lens
Corresponding points on the ground and photograph
Plumb points of stereo pair of photographs
f/H sec θ
f sec θ/H
f/H
f/H cos ½θ
One degree of longitude has greatest value at the equator
One degree of longitude has greatest value at the poles
One degree of longitude has the same value everywhere
One degree of latitude decreases from the equator to the poles
Two angle equations and two side equations
One angle equation and three side equations
Three angle equations and one side equation
None of these
The principal point coincides with plumb point on a true vertical photograph
The top of a hill appears on a truly vertical photograph at greater distance than its bottom from the principal point
The top of a hill is represented on a vertical photograph at larger scale than the area of a nearby valley
All the above
Is the point in the celestial sphere where zero meridian crosses the celestial equator
Is usually denoted by the Greek letter γ
Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
All the above
Co-declination
Co-latitude
Declination
Latitude
L.M.T. - East longitude in time
L.M.T. + East longitude in time
L.M.T. - West longitude in time
None of these
Photo principal point
Ground principal point
Ground isocenter
All the above
52 m
62 m
72 m
82 m
The sun's right ascension increases for 0 h to 24 h when it returns to the First point of Aries
The maximum declination of the sun increases up to 23 ½° N on about 21st June
The minimum declination of the sun is zero' on 22nd September
All the above
1 in 12
1 in 10
1 in 8
1 in 6
24 hours 10 minutes
20 hours 25 minutes
24 hours 50 minutes
23 hours 50 minutes
Nadir
Isocenter
Perspective centre
None of these
2 mm
4 mm
6 mm
10 mm
Geodetic triangulation of greatest possible sides and accuracy is carried out
Primary triangles are broken down into secondary triangles of somewhat lesser accuracy
Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys
All the above
1°
2°
3°
4°
Rational horizon
True horizon
Celestial horizon
All the above
1 : 10,000
1 : 15,000
1 : 20,000
1 : 30,000
Is prepared, by graphical method
Is suitable for large areas with less control
Is rapid and accurate
All the above
f/H
f/(H + h)
f/(H - h)
(H - h)/f
May have tilt up to 30°
May include the image of the horizon
May not include the image of the horizon
None of these
h tan α/S
h tan β/S
h (tan α + tan β)/S
h (tan α - tan β)/S
λ = α
λ = 90° - α
λ = α - 90°
λ = 180° - α
Do not follow any definite mathematical law
Cannot be removed by applying corrections to the observed values
Are generally small
All the above
Westward from the first point of Libra
Eastward from the first point of Aeries
Westward from the first point of Aeries
Eastward from the first point of Libra