KDOT Survey & Layout Verification 2

Question 1

When verifying a road centerline stakeout, what is the standard maximum allowable horizontal error for KDOT construction surveys?

Accepted Answer

±0.1 feet

Answer

KDOT construction surveys typically allow a maximum horizontal error of ±0.1 feet for centerline stakeout to ensure proper alignment.

Question 2

A KDOT inspector notices that slope stakes set by the contractor are missing after a rain event. What is the correct course of action?

Accepted Answer

Require the contractor to re-establish slope stakes before earthwork continues

Answer

Slope stakes must be re-established before earthwork continues to ensure cuts and fills are made to the correct grade and location.

Question 3

In KDOT surveying practice, what does the term 'P.I.' refer to on highway alignment plans?

Accepted Answer

Point of Intersection

Answer

P.I. stands for Point of Intersection, which is where two tangent lines of a horizontal curve meet.

Question 4

A contractor's grade rod reading at a benchmark check point is 4.82 feet, but the survey control record shows it should be 4.76 feet. What should the inspector do?

Accepted Answer

Halt grading operations and notify the project engineer

Answer

A 0.06-foot discrepancy exceeds typical survey tolerance and may indicate a benchmark error or instrument issue, requiring engineer notification before work continues.

Question 5

When checking culvert pipe layout, which dimension does the KDOT inspector verify FIRST?

Accepted Answer

Flow line elevation

Answer

Flow line elevation is verified first because an incorrect invert elevation affects drainage performance and cannot be corrected after backfill.

(KDOT) Certified Kansas Department of Transportation Inspector Practice Test

(KDOT) Certified Kansas Department of Transportation Inspector Practice Test

KDOT Survey & Layout Verification 2