Advanced Surveying Questions

• If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be
• The following points form a pair of homologous points :
• At eastern elongation, the pole star moves
• An aerial photograph may be assumed as
• Rotation of the camera at exposure about its vertical axis, is known as
• A star may culminate at zenith if its declination is
• On vertical photographs, height displacement is
• The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a Minar from a nadir point is 10 cm and the relief displacement of Minar is 7.2 mm. The height of the Minar, is
• The main object of the astronomer to obtain
• The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
• Spring tides are caused when
• By applying clockwise swing to right projector, maximum y-parallax is introduced in the model at
• α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is
• The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as
• The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is
• The net ground area of a vertical photograph 20 cm x 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is
• The rate of change of parallax dp/dh with respect to change in h, may be expressed as
• Pick up the in-correct statement from the folowing :
• The prime vertical passes through
• The difference of parallax for a given difference in elevation is independent of