Question

Departure of a line of a traverse is obtained by multiplying its length by the __________________ of the reduced bearing of the line.

• A. Sine
• B. Cosine
• C. Tangent
• D. Cotangent

Hint:

To calculate the departure of a line, always use the sine of the reduced bearing, as it gives the east-west component.

Answer 1

The Correct Option is A

In surveying, the departure of a line is calculated by multiplying its length by the sine of the reduced bearing of the line. This is because the departure corresponds to the east-west component of the line, which can be determined using the sine function.
Step 1: Understanding Departure
The departure is the horizontal distance that a line covers in the east-west direction, and it is given by: \[ \text{Departure} = \text{Length of the line} \times \sin(\text{reduced bearing}). \] Thus, the correct answer is (A) Sine.