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Quality assurance is defined only as those planned and systematic actions taken by the agency to
provide confidence that a product or facility will perform satisfactory in service. (T/F) -
(answers)False
A quality assurance program serves as a skeleton or overall framework necessary for
construction quality assurance implementation. (T/F) - (answers)True
Joint development and review of quality assurance specifications should include agency and
industry personnel (engineers, inspectors, technicians) who are directly responsible for
construction. (T/F) - (answers)True
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The same six core elements required for a design-bid-build constitution QA programs are also
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required for design-build construction QA programs. (T/F) - (answers)True
Quality control activities include only sampling and testing. Visual inspection is regulated to the
acceptance inspector. (T/F) - (answers)False
Quality control plans are project specific documents whose function is to address specific
production facility and field placement processes for individual categories of work on a
construction project. (T/F) - (answers)True
Acceptance is the responsibility of the transportation agency. (T/F) - (answers)True
The engineering limits are the absolute threshold values for individual test results. (T/F) -
(answers)True
,Quality assurance specifications typically use quality measures. (T/F) - (answers)True
Since the objective of the IA comparison is to identify discrepancies or variability in testing
procedures or equipment l, IA testing is performed on split samples. (T/F) - (answers)True
Dispute resolution is a formal system designed to address significant differences between agency
acceptance test data and/or observations and contractor QC test data and/or observations. (T/F) -
(answers)True
All agency central laboratories are required under federal regulations to be accredited through
the AASHTO accreditation program (AAP). (T/F) - (answers)True
Personnel qualification/certification programs should include requirements for recertification at 2
to 5 year intervals. (T/F) - (answers)True
心的坚强决定了我们的命运。当
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Each agency construction QA program must meet requirements of 23 CFR 637B and is required
to be approved by FHWA. (T/F) -心让我们勇敢前行
(answers)True
Asphalt binder exists in both naturally occurring and manufactured forms. (T/F) - (answers)True
Another appropriate term for asphalt binder is tar. (T/F) - (answers)False
An asphalt binder blended with water in a colloid mill is called an emulsion. (T/F) -
(answers)True
Viscosity is defined as a fluids ability to flow (higher viscosity=more flowable). (T/F) -
(answers)False
When exposed to air over an extended period of time, asphalt binder tends to stiffen and becomes
less flexible. (T/F) - (answers)True
, A PG binder with a grade of 64-27 would be used in warmer climate than a PG Binder with a
grade of 70-28. (T/F) - (answers)False
A PG 64-28 may or may not be modified. (T/F) - (answers)True
The binder supplier should always be consulted for recommendations on the optimum mixing
and compaction temperatures for modified binders at the plant. (T/F) - (answers)True
Using the AASHTO M 320 criteria, very heavy traffic, slow moving, or standing traffic may
require a grade increase for the high temperature criteria. (T/F) - (answers)True
A binder with a rating of 64E-22 means the performance of the binder is extended (E) on the
high end. (T/F) - (answers)False 心的坚强决定了我们的命运。当
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Elastomers are thermoplastic in that changes in temperature affect which characteristics of the
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polymer are predominant at any given time, and those changes are recoverable (reversible). (T/F)
- (answers)True
85-90% of the overall volume of an asphalt mixture is occupied by aggregate. - (answers)True
The nominal maximum size is defined as the first sieve that retains more than 10% in a
cumulative fashion. - (answers)False
The aggregate grading of an asphalt mixture has no influence on the properties of the mixture. -
(answers)False
The amount of minus #200 fine particles in a asphalt mixture can have a big impact on the
asphalt binder. - (answers)True