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 (i) and (iv)

only (iii)

both (ii) and (iii)

only (i)

both (i) and (iv)

only (iii)

both (ii) and (iii)

only (i)

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In the cross-section method of indirect contouring, the spacing of cross-sections depends uponi) contour intervalii) scale of planiii) characteristics of groundThe correct answer is

(i) and (ii)

only (i)

(ii) and (iii)

(i), (ii) and (iii)

(i) and (ii)

only (i)

(ii) and (iii)

(i), (ii) and (iii)

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Surveying
The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is

1 : 10,000

1 : 20,000

1 : 30,000

1 : 15,000

1 : 10,000

1 : 20,000

1 : 30,000

1 : 15,000

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Surveying
23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents

2 m

4 m

1 m

3 m

2 m

4 m

1 m

3 m

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Surveying
For mapping any country

Primary triangles are broken down into secondary triangles of somewhat lesser accuracy

Geodetic triangulation of greatest possible sides and accuracy is carried out

All listed here

Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys

Primary triangles are broken down into secondary triangles of somewhat lesser accuracy

Geodetic triangulation of greatest possible sides and accuracy is carried out

All listed here

Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys

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Surveying
The principal plane contains

Nadir point

Principal point

All of these

Iso-centre

Nadir point

Principal point

All of these

Iso-centre

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Surveying

Surveying In the cross-section method of indirect contouring, the spacing of cross-sections depends uponi) contour intervalii) scale of planiii) characteristics of groundThe correct answer is

Surveying The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is

Surveying 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents

Surveying For mapping any country

Surveying The principal plane contains

Surveying
In the cross-section method of indirect contouring, the spacing of cross-sections depends uponi) contour intervalii) scale of planiii) characteristics of groundThe correct answer is

Surveying
The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is

Surveying
23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents

Surveying
For mapping any country

Surveying
The principal plane contains