Surveying
The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is

1000 m
500 m
2000 m
1500 m

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Contour interval is

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

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP