D-2 Learning Task 2

Question 1

Define supplementary angle

Answer 1

Two angles that add up to 180 degrees

Question 2

Define complementary angle

Answer 2

Two angles that add up to 90 degrees

Question 3

What is the sum of the angles in any triangle?

Answer 3

180

Question 4

What does the term zenith mean?

Answer 4

The point directly overhead of the instrument

Question 5

When using a transit, what is the sum of the clockwise and counterclockwise angles?

Answer 5

360 degrees

Question 6

How do you rough level a transit or theodolite equipped with an optical plummet

Answer 6

Adjust the legs of the tripod

Question 7

What is the difference between a transit and a theodolite?

Answer 7

A transit uses a vernier scale,
Theodolite all readings are internal

Question 8

What is adjusted to read the minutes and seconds when using a theodolite?

Answer 8

The micro-dial

Question 9

In which direction can electronic theodolites lay out horizontal angles?

Answer 9

Both clockwise and counterclockwise

Question 10

Describe how a telescope is transited

Answer 10

The process of flipping the telescope 180 degrees to look in the opposite direction

Question 11

Why is transiting a telescope better than rotating through 180 degrees

Answer 11

Because the zero of the horizontal scale doesn’t change