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 levelThe correct answer is

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 levelThe correct answer is

both (ii) and (iii)

only (iii)

only (i)

both (i) and (iv)

both (ii) and (iii)

only (iii)

only (i)

both (i) and (iv)

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Surveying
The stereo plotting instruments are generally manufactured on the principle of

All of these

Optical projection

Optical mechanism projection

Mechanical projection

All of these

Optical projection

Optical mechanism projection

Mechanical projection

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Surveying
Height of instrument method of levelling is

less accurate than rise and fall method

None of these

more accurate than rise and fall method

quicker and less tedious for large number of intermediate sights

less accurate than rise and fall method

None of these

more accurate than rise and fall method

quicker and less tedious for large number of intermediate sights

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‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is

f/H

H/f

H. f

H + f

f/H

H/f

H. f

H + f

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Surveying
Pick up the incorrect statement from the following. High oblique photographs

May not include the image of the horizon

None of these

May include the image of the horizon

May have tilt up to 30°

May not include the image of the horizon

None of these

May include the image of the horizon

May have tilt up to 30°

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Surveying
The height displacement on a vertical photograph

Decreases as the flying height increases

Increases as the horizontal distance increases from the principal point

All listed here

Increases as the ground elevation increases

Decreases as the flying height increases

Increases as the horizontal distance increases from the principal point

All listed here

Increases as the ground elevation increases

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Surveying

Surveying The stereo plotting instruments are generally manufactured on the principle of

Surveying Height of instrument method of levelling is

Surveying ‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is

Surveying Pick up the incorrect statement from the following. High oblique photographs

Surveying The height displacement on a vertical photograph

Surveying
The stereo plotting instruments are generally manufactured on the principle of

Surveying
Height of instrument method of levelling is

Surveying
‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is

Surveying
Pick up the incorrect statement from the following. High oblique photographs

Surveying
The height displacement on a vertical photograph