Advanced Surveying MCQs

Consider the following statements regarding the suitability of polar star 1. determination of azimuth 2. determination of latitude 3. determination of time Of these statements:

Consider the following statements : Assertion A: The angles that are measured at the triangulation stations are not affected by the difference of elevation of the station Reason R : The measured angles are horizontal angles

Consider the following statements : 1. The weight of the weighted arithmetic mean is equal to the square of the sum of the individual weights 2. The weight of algebraical sum of quantities is equal to the reciprocal of the sum of the reciprocals of the individual weights 3. The weight of the product of a quantity and a factor is equal to the weight of that quantity divided by the square of that factor 4. The weight of a quantity divided by a factor is equal to the weight of that quantity divided by the square of that factor Of these statements:

Consider the following statements :1. The ground and photo isocentres as well the ground and photo plumb points are known as homologous points 2. The scale of a photograph is the ratio of the focal length of the lens and the flying height 3. The height distortion is always radial from the plumb point of the photograph 4. The radial line plotting the rays are drawn from the plumb points of photographs Of these statements:

The cause of gaps between the photographs is due to :

The point vertically below the perspective centre on the ground is called:

The height distorsion on a truly vertical photograph is

An astronomical triangle contains the following :