Surveying
If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer, then the azimuth of the star at elongation is given by

cos z = sec φ . cos δ
tan z = sec φ . cos δ
None of these
sin z = sec φ . cos δ

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?

Measuring angles to the point from at least two stations
Measuring distance from two points on traverse line
Measuring angle at one station and distance from other
Measuring angle and distance from one transit station

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
makes the correction due to pull equal to zero
neutralizes the effect due to pull and sag

ANSWER DOWNLOAD EXAMIANS APP