LSIT Mathematics for Surveying

Question 1

What trigonometric function relates opposite side to hypotenuse?

Accepted Answer

Sine

Answer

Cosine

Answer

Tangent

Answer

Cotangent

Question 2

What is the law of cosines used for in surveying?

Accepted Answer

Solving triangles when you know two sides and the included angle or three sides

Answer

Only right triangles

Answer

Only for area calculation

Answer

Only for bearing conversion

Question 3

How do you convert bearings to azimuths?

Accepted Answer

NE bearings equal the bearing angle; SE bearings = 180 minus bearing; SW = 180 plus bearing; NW = 360 minus bearing

Answer

They are the same

Answer

Subtract 90

Answer

Multiply by 2

Question 4

What is the formula for slope distance to horizontal distance?

Accepted Answer

HD = SD × cos(vertical angle)

Answer

HD = SD × sin(vertical angle)

Answer

HD = SD + elevation

Answer

HD = SD / 2

Question 5

What is coordinate geometry (COGO)?

Accepted Answer

Mathematical computation of coordinates, areas, distances, and directions from survey data

Answer

A computer brand

Answer

A type of GPS

Answer

A drafting tool

Question 6

How is area calculated using the coordinate method?

Accepted Answer

Sum of cross products of coordinates divided by 2

Answer

Length times width only

Answer

Counting grid squares

Answer

Measuring with a ruler on a map