Surveying
The length of a chain is measured from

outside of one handle to outside of other handle
outside of one handle to inside of other handle
centre of one handle to centre of other handle
inside of one handle to inside of other handle

ANSWER DOWNLOAD EXAMIANS APP

Surveying
The rise and fall method

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

ANSWER DOWNLOAD EXAMIANS APP