Surveying
The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

Equator
Pole
None of these
Horizon

ANSWER DOWNLOAD EXAMIANS APP

Surveying
The difference between a level line and a horizontal line is that

level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
level line is a curved line while hori-zontal line is a straight line
both are same
horizontal line is normal to plumb line while level line may not be normal to the plumb line

ANSWER DOWNLOAD EXAMIANS APP