१. Each work should be planned with respect to
- Manner of executive of the work
- urgency of the work
- availability of resources
- all of these
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२. In the surveying telescopes, cross hairs are fitted in
- Centre of the telescopes
- optical centre of the eye piece
- front of the eye piece
- front of the objective
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३. An imaginary line tangential to the longitudinal curve of the level at the centre of the tube is called
- Horizontal axis
- vertical axis
- axis of the level tube
- line of the collimation
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४. The ratio of the focal length of the objective to that eye-piece of a telescope is called its
- Definition
- brightness
- sensitivity
- magnification
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५. An angle between the inclined line of sight and the horizontal is called
- Direct angle
- vertical angle
- horizontal angle
- deflection angle
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