CM 2105 Delatte Final Exam
QUESTIONS & ANSWERS
Accuracy, dependability, productivity, and versatility are not benefits of using a laser. -
ANSWERFalse
How many satellites are used in the GPS system? - ANSWER24 plus 6 in reserve
The __________ laser uses an infrared energy source that is not visible to the observer.
- ANSWERelectronic level
What type of leveling does a laser level use in the generation of a points elevation? -
ANSWERDifferential
Which type of interference needs to be considered when using GPS for construction
layout and surveying? - ANSWEROrbiting errors
What is the percentage grade between pt A and pt B given the following plan
information? (answer to 2nd decimal place, example 5.05%)
Pt A has an elevation of 211.10 ft.
Pt B has an elevation of 217.30 ft.
The distance between the points is 193.75ft. - ANSWER3.20 %
A laser level is used to determine an elevation on a point. The back-sight reading of
3.50' is taken on a benchmark with an elevation of 101.15. From this setup a side-shot
of 3.14' is taken on point "A". What is the elevation of point "A"? - ANSWER101.51'
What is the most important rule of thumb regarding downloading GPS data? -
ANSWERBack up data as soon as possible
What is the rod reading depicted in the following picture of a laser sensor on a level
rod? - ANSWER2.18'
laser projects a beam that can be seen 360º around the instrument - ANSWERRotating
laser projects a single line, for example a pipe laser - ANSWERFixed
laser projects fixed or rotating lines - ANSWERUtility
When a distance between two points is measured with a chain that is too short, the
distance that is recorded will be larger or more than the actual length of the line. -
ANSWERRecording More
QUESTIONS & ANSWERS
Accuracy, dependability, productivity, and versatility are not benefits of using a laser. -
ANSWERFalse
How many satellites are used in the GPS system? - ANSWER24 plus 6 in reserve
The __________ laser uses an infrared energy source that is not visible to the observer.
- ANSWERelectronic level
What type of leveling does a laser level use in the generation of a points elevation? -
ANSWERDifferential
Which type of interference needs to be considered when using GPS for construction
layout and surveying? - ANSWEROrbiting errors
What is the percentage grade between pt A and pt B given the following plan
information? (answer to 2nd decimal place, example 5.05%)
Pt A has an elevation of 211.10 ft.
Pt B has an elevation of 217.30 ft.
The distance between the points is 193.75ft. - ANSWER3.20 %
A laser level is used to determine an elevation on a point. The back-sight reading of
3.50' is taken on a benchmark with an elevation of 101.15. From this setup a side-shot
of 3.14' is taken on point "A". What is the elevation of point "A"? - ANSWER101.51'
What is the most important rule of thumb regarding downloading GPS data? -
ANSWERBack up data as soon as possible
What is the rod reading depicted in the following picture of a laser sensor on a level
rod? - ANSWER2.18'
laser projects a beam that can be seen 360º around the instrument - ANSWERRotating
laser projects a single line, for example a pipe laser - ANSWERFixed
laser projects fixed or rotating lines - ANSWERUtility
When a distance between two points is measured with a chain that is too short, the
distance that is recorded will be larger or more than the actual length of the line. -
ANSWERRecording More
