CM 2105 FINAL EXAM QUESTIONS AND ANSWERS GRADED A+ 2025/2026

CM 2105 FINAL EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026




What type of leveling does a laser level use in the generation of a points elevation?

Select one:

A. Differential

B. Rectangular

C. Prismoidal

D. Trigonometric - ANS A



What is the most important rule of thumb regarding downloading GPS data?

A. Back up data as soon as possible

B. You are not required to download data as it stays in the cloud

C. Back up data once a week

D. Back up data monthly - ANS A



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"? - ANS C



What is the rod reading depicted in the following picture of a laser sensor on a level rod?


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, Select one:

A. 2.10'

B. 2.02'

C. 2.18'

D. 2.20' - ANS C



The __________ laser, also known as the "helium-neon" laser, is a gaseous type that consists of
helium and neon. - ANS visible light



What is the minimum number of satellites needed for determining of a position's elevation
when using a GPS?

Select one:

A. 6

B. 4

C. 3

D. 5 - ANS B



Accuracy, dependability, productivity, and versatility are not benefits of using a laser.

Select one:

True

False - ANS B



Which type of interference needs to be considered when using GPS for construction layout and
surveying?

Select one:

A. Multitask error

B. Orbiting errors
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