Surveying
If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated

on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Homologous points are

Nodal points of the camera lens
Opposite corners of a photograph
Plumb points of stereo pair of photographs
Corresponding points on the ground and photograph

ANSWER DOWNLOAD EXAMIANS APP