Under FAA Item P-152, what is the primary purpose of proof-rolling a prepared subgrade before placing base or pavement?
Sitework
Question · Easy
When compacting embankment under typical FAA P-152 earthwork requirements, moisture content is controlled primarily to:
Clearing and grubbing for an airport project typically requires removal of which materials within the work limits?
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Unsuitable material discovered in the runway subgrade should generally be:
Blue tops on an airport grading job are primarily used to:
Under OSHA excavation rules commonly applied on sitework, spoil piles and equipment generally must be kept at least how far from the edge of an excavation?
A trench 4 feet deep on the airfield requires a safe means of egress so that no worker travels more than how far laterally to reach it?
For airport embankments, material is typically placed in lifts primarily to:
What is the main function of an underdrain system installed under or beside airfield pavement?
Silt fence on an airport sitework project is primarily intended to:
Borrow material for runway embankment must generally be:
Question · Medium
Maximum dry density and optimum moisture for embankment acceptance testing are most commonly established by:
A nuclear density gauge on compacted subgrade is used primarily to measure:
When finishing the graded runway safety area (RSA) surface, the contractor should ensure grades:
Topsoil stripped from the site before mass grading is usually stockpiled so it can later be used for:
If embankment material is too wet to achieve specified density, the preferred first corrective action is usually to:
A culvert installed under an airfield haul road or graded area must primarily provide:
Before placing granular subbase (FAA Item P-154 class work), the prepared subgrade should be:
When hauling borrow across existing airfield pavement that must remain in service, the contractor should primarily:
Frost heave risk under airfield pavements is reduced primarily by:
A shrinkage factor of 15% means that to obtain 10,000 compacted cubic yards of embankment, approximately how many bank cubic yards must be excavated?
Question · Hard
Cross-slope on finished airfield graded surfaces is provided mainly to:
When utility conflicts are found during runway sitework excavation, the contractor should:
Filter fabric (geotextile) under a drainage aggregate trench is typically used to:
Which condition most clearly indicates a prepared subgrade is not ready for base placement?
Dust control on open airport earthwork is important because dust can:
Select fill placed in a utility trench under future runway pavement should be compacted:
A temporary diversion ditch during runway reconstruction is mainly intended to:
If a nuclear density test fails on an embankment lift, the contractor should typically:
Finished turf establishment in graded airfield areas generally requires which sequence?
A stockpile of select base aggregate should be managed to prevent:
Why is dewatering often required during deep excavation for drainage structures on airfield projects?
When balancing cut and fill on a runway reconstruction, the earthwork plan should primarily account for:
FAA Item P-401 generally covers construction of which airfield pavement type?
Runway Pavement
FAA Item P-501 is the standard specification for:
A principal structural difference between flexible and rigid airfield pavements is that:
Crushed aggregate base under airfield pavement must be placed and compacted primarily to:
Asphalt mix temperature is critical at placement because:
Percent Within Limits (PWL) acceptance on FAA pavement work evaluates:
Transverse contraction joints in PCC runway pavement are provided mainly to:
Initial saw-cutting of PCC contraction joints should begin:
Curing of newly placed airfield concrete is essential because it:
Airfield PCC mix designs are often accepted based on flexural strength rather than only compressive strength because:
Dowels at transverse joints in airfield concrete pavements primarily provide:
Surface grooving of runway pavement is performed mainly to:
On airfield asphalt paving, longitudinal joints should be constructed so that they are:
A job mix formula (JMF) for P-401 asphalt defines:
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