LEVELLING SURVEY - Practice Mode

1) What is the fundamental line in levels?
Correct Answer: The axis of the telescope
2) Which levelling instrument is required in second adjustment to make the line of collimation parallel to the axis of the bubble tube?
Correct Answer: Dumpy level
3) Which level instrument requires a signal permanent adjustment?
Correct Answer: Tilting level
4) What is the postion of line of collimation, if observed staff reading is more than the required true staff reading?
Correct Answer: Inclined upwards
5) What is the position of line of collimation While the observed reading is the less than the required true reading?
Correct Answer: Inclined downwards