Surveying
The angular distance of a heavenly body from the equator, measured along its meridian, is called

Co-latitude
Zenith distance
Altitude
Declination

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Surveying
If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is

both (ii) and (iii)
only (i)
only (iii)
both (i) and (iv)

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Surveying
Contour interval is

Larger if the time available is more
Inversely proportional to the scale of the map
Larger for accurate works
Directly proportional to the flatness of ground

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Surveying
Sidereal day

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

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