CTQP Earthwork Construction Inspection 3

Question 1

What action should an inspector take if a nuclear gauge reading shows compaction below the required density?

Accepted Answer

Reject the lift and require the contractor to re-compact and retest

Answer

Allow the contractor to proceed and re-test at the end of the day

Answer

Average the result with the previous passing test

Answer

Increase the required density threshold by 2%

Question 2

What is the purpose of moisture-density relationship testing (Proctor test) in earthwork?

Accepted Answer

To establish the target density and optimum moisture for field compaction

Answer

To determine the plasticity index of the soil

Answer

To classify the soil for payment purposes

Answer

To measure the permeability of the compacted material

Question 3

What is 'select material' in FDOT embankment specifications?

Accepted Answer

Higher-quality material meeting specific gradation and bearing requirements used in upper embankment zones

Answer

Any A-1 classified soil

Answer

Material that is hand-selected by the project engineer

Answer

Imported material from certified borrow pits only

Question 4

When should an earthwork inspector verify grades and cross-sections?

Accepted Answer

Before and after earthwork operations at each station

Answer

Only at project completion before acceptance

Answer

Once per week regardless of progress

Answer

Only when requested by the project engineer

Question 5

What is the purpose of a 'toe of fill' in embankment construction?

Accepted Answer

The bottom edge of a fill slope where it meets existing ground

Answer

The waterproofing layer at the base of the fill

Answer

The compaction test location nearest the fill centerline

Answer

The drainage pipe installed beneath the embankment

Question 6

What is a 'settlement monument' used for in earthwork inspection?

Accepted Answer

A device installed to monitor vertical movement of embankments over time

Answer

A marker placed to identify the project limits

Answer

A benchmark used for elevation control during grading

Answer

A sign indicating maximum vehicle weight on earthwork areas