Surveying
The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is

Declination and right ascension system
Declination and altitude system
Altitude and azimuth system
Declination and hour angle system

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Systematic errors

Always follow some definite mathematical law
Can be removed by applying corrections to the observed values
All listed here
Are also known as cumulative errors

ANSWER DOWNLOAD EXAMIANS APP

Surveying
In the prismatic compass

the line of the sight does not move with the box
the magnetic needle moves with the box
the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction
the magnetic needle and graduated circle do not move with the box

ANSWER DOWNLOAD EXAMIANS APP