Surveying
The zenith is the point on the celestial sphere

West of observer
East of observer
North of observer
South of observer

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Accidental errors

Cannot be removed by applying corrections to the observed values
Are generally small
All of these
Do not follow any definite mathematical law

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Normal tension is that pull which

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

ANSWER DOWNLOAD EXAMIANS APP