CM 2105 TEST 1 EXAM QUESTIONS AND ANSWERS GRADED A+ 2025/2026

CM 2105 TEST 1 EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026




B to A in NE - ANS do nothing



B to A in NW - ANS 360-b



B to A in SW - ANS 180+b



B to A in SE - ANS 180-b



Discrepancy Ratio - ANS (forward-back)/mean



direct, direct and reverse, closing the horizon, traverse angles, layout - ANS Field angles
measured



Elevation - ANS vertical distance above a zero datum



Benchmark - ANS permanent solid point of known elevation



Backsight - ANS reading on a rod held on a point whose elevation is known
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

, Foresight - ANS reading on a rod held on a point whose elevation is unknown



Turning point - ANS point used in differential leveling process to temporarily transfer the
elevation from the HI



Closed loop - ANS to end a level loop at a known benchmark



HI - ANS BM + BS=



HI-FS= - ANS TP elev



Elevation + BS= - ANS HI



A to B (0-90deg) - ANS do nothing



A to B (180-270deg) - ANS a- 180. south west bearings



A to B (270-360deg) - ANS subtract 360-a. north west bearings



A to B (90-180deg) - ANS 180-a. south east bearings



human - ANS ______ errors are random



transit, optical theodolite, digital theodolite, total station - ANS Four instruments


2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.