4. Austroads define the concept of 'desirable maximum length of grades'. Why?

a. because long grades generate additional cut/fill volumes

b. long and steep grades can affect vehicles performance

c. because long grades can increase the project costs

d. because long and steep grades favour the traffic flow by increasing capacity

e. none of the answers is correct

5. What is the correct sequence of operations when building an asphalt road?

a. Plant production, transportation, tack coat, compaction, paving

b. Plant production, transportation, tack coat, paving, compaction

c. Plant production, transportation, paving, tack coat, compaction

d. Plant production, transportation, paving, compaction, tack coat

e. Plant production, transportation, paving, tack coat, compaction

6. The functional performance of a pavement considers:

a. the structural response to loads applied by vehicles

b. none of the answers is correct

c. the bearing capacity of the pavement

d. the quality of the materials

e. the thickness of the pavement layers

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