Surveying
The process of turning the telescope about the vertical axis in horizontal plane is known as

plunging
swinging
transiting
reversing

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Which of the following errors can be eliminated by taking mean of bot face observations ?

error due to imperfect graduations
error due to imperfect adjustment of plate levels
error due to line of collimation not being perpendicular to horizontal axis
error due to eccentricity of verniers

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Which of the following errors cannot be eliminated by taking both face observations ?

None of these
error due to horizontal axis not being perpendicular to the vertical axis
index error i.e. error due to imperfect adjustment of the vertical circle vernier
error due to non-parallelism of the axis of telescope level and line of collimation

ANSWER DOWNLOAD EXAMIANS APP

Surveying
The rise and fall method

is not suitable for levelling with tilting levels
is less accurate than height of instrument method
quicker and less tedious for large number of intermediate sights
provides a check on the reduction of intermediate point levels

ANSWER DOWNLOAD EXAMIANS APP