Correct Answer : All of the above
Explanation : * Cross staff is used for setting out right angles* Gradiometer is used for setting out any required gradient* Box sextant is used for the measurement of horizontal angles* Line ranger is used for locating intermediate stations on a survey line
Correct Answer : Option (B) : 206.75 m
Correct Answer : Option (B) : north-west quadrant
Correct Answer : Option (C) : Both (A) and (B)