Deck 24: Civil Drafting Problems

Question 1

What is the azimuth of a line that has a bearing of S 258 W?

Answer 1

205°

Question 2

Is Virginia one of the public-land states? 59728_ch24_EOC_ptg01.indd 1 03/02/16 10:38 am

Answer 2

. No

Question 3

Is there only one meridian used for land surveys in the United States? Explain.

Answer 3

. There is a meridian for each of the 31 great surveys in the contagious United States, and the three in Alaska.

Question 4

Describe isogonic lines. What importance do they have in surveying?

Question 5

Describe the difference between the rectangular system and the metes and bounds system.

Question 6

What is the bearing of a line that has an azimuth of 808?

Question 7

Given a known elevation at a known distance from a transit, describe how you would find an unknown elevation using foresight and backsight. Give an example with your own arbitrary figures.

Question 8

What is a bench mark?

Question 9

What is the azimuth of a line that has a bearing of N 308 W?

Question 10

Describe the difference between an EDM system and a MOD system.

Question 11

What is the difference between a closed traverse and a deflection-angle traverse?

Question 12

When looking at a topographical map (one which shows topography), how would you find the difference between an index contour and an intermediate contour?

Question 13

If you were to draw an example of a north arrow on a map showing the area around Caracas, South America, what would be the approximate difference in degrees and direc- tion for the magnetic north arrow? (See Figure 24.12.)

Question 14

What is meant b

Question 15

What is a "chain"?

Question 16

Define contour lines.

Question 17

What is the bearing of a line that has an azimuth of 2378?

Question 18

In what two ways can a Philadelphia rod be used?

Question 19

What is the difference between TIN and TIS?

Question 20

Describes the difference between a bearing and a true azimuth. Give specific examples of each.

Question 21

Information used to prepare a site plan can come from one or more of several available sources. List four possible sources.

Question 22

What influences the size of the drawing sheet recommended for site plans?

Question 23

What information is used in curve data?

Question 24

What four factors influence scale selection in drawing a site plan?

Question 25

Why are construction lines helpful in site plan layout?

Question 26

Define the prime meridian.

Question 27

What are the four common abbreviations used when plot- ting a vertical curve? Describe them.

Question 28

Describe how new contours are shown on a building site. Also describe how new contours affect the profile of a section of a building site.

Question 29

Describe the difference between a contour map and a profile map.

Question 30

What is the similarity between a connecting traverse and a loop traverse?

Question 31

Describe a great circle.

Question 32

In a profile layout, why is the vertical scale exaggerated from the horizontal scale?

Question 33

Question 34

How large is a township?

Question 35

What is a PI?

Question 36

List five elements of information that should be determined before starting a site plan drawing.

Question 37

How large is a section?

Question 38

What is the number of the section in the lower left-hand corner of a township?

Question 39

Define IE. Describe how it is used.

Question 40

Describe the angle of repose. Give an example of how it is used.

Question 41

Explain how a grid survey is set up.

Question 42

Explain the difference between index and intermediate con- tour lines.

Question 43

What is the distance to station poin

Question 44

List at least six types of information that should be deter- mined before the site plan can be completed.

Question 45

What is the transit station?

Question 46

Define contour lines.

Question 47

Define angle of repose.

Question 48

Why is the vertical profile scale exaggerated?

Question 49

Why is the horizontal scale of the profile the same as the map scale?

Question 50

What is the distance to station poin

Question 51

Identify at least one difference between residential and commercial site plans.

Question 52

Question 53

In addition to the elevation of the excavation site, what does the grading plan show?

Question 54

What are field notes?

Question 55

Define profile.

Question 56

Describe the radial survey.

Question 57

In a grid survey, what is used to label the vertical lines?

Question 58

Define setbacks.

Question 59

Is it true or false that one of the advantages of CADD over manual drafting is accuracy?

Question 60

Describe the control point survey.