Northward
Southward
From south to north of the equator
From north to south of the equator
C. From south to north of the equator
Nadir point
Iso centre
Principal point
All the above
f tan θ
f sin θ
f cot θ
f cos θ
Always follow some definite mathematical law
Can be removed by applying corrections to the observed values
Are also known as cumulative errors
All the above
sin α = sin φ cosec δ
sin α = sin φ sec δ
sin α = cos φ sec δ
sin α = cos φ cosec δ
52 m
62 m
72 m
82 m
Ground elevation
Flying height
Length of air base
All the above
Once
Twice
Thrice
Four times
If the applied tension to the tape is more than the standard, the tension correction is positive
If the applied tension to the tape is less than the standard, the tension correction is negative
If the temperature during measurement is greater than the standard temperature, the temperature correction is positive
All the above
Isocenter
Principal point
Perspective centre
Plumb line
The area is divided into triangular figures
Control stations are located from which detailed surveys are carried out
Sides are not measured excepting the base line
All the above
Gauss' Mid Latitude formula
D'Alembert's method
Legendre's method
Least square method
March 21
June 21
September 21
December 22
Co-declination
Co-altitude
Co-latitude
Polar distance
When its altitude is maximum
When its azimuth is 180°
When it is in south
All the above
Increases as the horizontal distance increases from the principal point
Increases as the ground elevation increases
Decreases as the flying height increases
All the above
f/H
f/(H + h)
f/(H - h)
(H - h)/f
Parallel projection
Orthogonal projection
Central projection
None of these
High oblique
Low oblique
Vertical
None of these
Mean sun
True sun
Vernal equinox
All the above
The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph
The difference between the absolute parallax of two points depends upon the difference in their elevations
The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base
All the above
1 minute of latitude
1 minute of longitude
1 degree of latitude
1 degree of longitude
The sum of the angles around a station should be 360°
The sum of the three angles of a plane triangle should be 180°
The sum of the eight angles of a braced quadrilateral should be 360°
All the above
Declination
Altitude
Zenith distance
Co-latitude
May have tilt up to 30°
May include the image of the horizon
May not include the image of the horizon
None of these
Horizon and equator
Zenith and pole
Equator and zenith
Pole and horizon
4000 m
5000 m
6000 m
7000 m
f/H sec θ
f sec θ/H
f/H
f/H cos ½θ
29 days
29.35 days
29.53 days
30 days
θ = z + δ
θ = δ - z
θ = 180° - (z + δ)
θ = (z + δ) - 180°
9 cos α
9 sin α
9 tan α
9 cot α