1What is the main structural difference in the eyepiece of an erecting telescope compared to an inverting telescope?
An erecting telescope eyepiece contains more lenses
2What term describes the apparent movement of cross-hairs over an image caused by a slight movement of the eye from side to side?
Parallax
3Why does the condition of parallax occur in a transit or level telescope?
The cross-hairs are not in the focal plane of the eyepiece
4What area and curvature constraints define plane surveys?
They cover limited areas and disregard the earth's curvature
5What spatial scale and curvature considerations characterize geodetic surveys?
They involve large areas and take the earth's curvature into account
6What is the primary purpose of topographic surveys?
To determine ground surface shape and locate natural and artificial features
7How should calculations be checked to prevent repeating an error made by the original computer?
By reviewing data transcription and checking with independent methods
8What type of scale is most frequently used by draftsmen to determine distances?
The engineer's scale
9What action must a surveyor take with a compass needle to ensure accurate field work?
Keep the magnetic needle swinging freely at all times
10Which organization is responsible for establishing precise horizontal and vertical control points for detailed surveys?
The Coast and Geodetic Survey
11How are constant or systematic errors in surveying categorized regarding their effect?
As cumulative
12How is the distance between two points specifically defined in surveying?
As the horizontal distance
13How tight should the nuts and bolts at the head of a tripod be adjusted?
So the legs permit a slight twist for adjusting position
14What is an auxiliary scale that slides along the main scale of a transit to subdivide its smallest divisions called?
A vernier
15What does the least count of a vernier represent?
The smallest value that can be read directly from the scale
16What action can be taken to determine drainage requirements in highway surveys if USGS quadrangle maps and aerial photos are unavailable?
The perimeter of larger drainage areas may be traversed
17How should a survey supervisor's relations with a subordinate chief of party be managed?
Varied depending upon circumstances
18What is considered the single most important responsibility of a field survey supervisor?
To get work done efficiently
19How is the breakdown of costs into direct and indirect factors viewed when calculating survey party expenses?
It is considered arbitrary
20What is the mandatory first step before executing a survey for a potential highway location?
To obtain and check a USGS quadrangle map and aerial photos