Surveying
Normal tension is that pull which

makes the correction due to pull equal to zero
neutralizes the effect due to pull and sag
makes the correction due to sag equal to zero
is used at the time of standardising the tape

ANSWER DOWNLOAD EXAMIANS APP

Surveying
The rise and fall method

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

ANSWER DOWNLOAD EXAMIANS APP