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Surveying

Surveying
The average eye base is assumed as

60 mm
58 mm
64 mm
62 mm

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Surveying
The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as

Plumb line
Isocenter
Perspective centre
Principal point

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Surveying
At western elongation, the pole star moves

Southward
Westward
Northward
Eastward

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Surveying
Check lines (or proof lines) in Chain Surveying, are essentially required

To indicate the accuracy of the survey work
To plot the offsets
To increase the out-turn
To plot the chain lines

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Surveying
If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is

1.33
0.4
0.6
0.1

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Surveying
Direct method of contouring is

most accurate method
adopted for large surveys only
a quick method
suitable for hilly terrains

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MORE MCQ ON Surveying

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