Surveying
The scale of a vertical photograph of focal length ‘f’ taken from height of ‘H’ metres above M.S.L., at a point of reduced level ‘h’, is

f/(H + h)
f/(H - h)
(H - h)/f
f/H

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Surveying
Sidereal day

Is the period of time taken by the earth in making a complete rotation with reference to stars
Is divided into the conventional hours, minutes and seconds
Is slightly shorter than an ordinary solar day
All listed here

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Surveying
Dumpy level is most suitable when

fly levelling is being done over long distance
the instrument is to be shifted frequently
All of these
many readings are to be taken from a single setting of the instrument

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Surveying
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?

Measuring distance from two points on traverse line
Measuring angles to the point from at least two stations
Measuring angle and distance from one transit station
Measuring angle at one station and distance from other

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