Surveying
Sidereal day

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

ANSWER DOWNLOAD EXAMIANS APP

Surveying
In triangulation surveys

Control stations are located from which detailed surveys are carried out
All listed here
The area is divided into triangular figures
Sides are not measured excepting the base line

ANSWER DOWNLOAD EXAMIANS APP