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

tan H = tan φ . cot δ
cos H = tan φ . cot δ
None of these
sin H = tan φ . cot 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 angle at one station and distance from other
Measuring angles to the point from at least two stations
Measuring distance from two points on traverse line
Measuring angle and distance from one transit station

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Sidereal day

All listed here
Is slightly shorter than an ordinary solar day
Is the period of time taken by the earth in making a complete rotation with reference to stars
Is divided into the conventional hours, minutes and seconds

ANSWER DOWNLOAD EXAMIANS APP