CTQP Asphalt Paving Inspection 2

Question 1

What instrument is used to measure the thickness of an asphalt core sample in the field?

Accepted Answer

Digital caliper

Answer

Nuclear gauge

Answer

Profilograph

Answer

Falling weight deflectometer

Question 2

What is 'ride quality' or 'smoothness' measured with on FDOT asphalt projects?

Accepted Answer

An inertial profiler or profilograph

Answer

A nuclear density gauge

Answer

A straightedge and feeler gauge

Answer

A rolling wheel deflectometer

Question 3

What is the maximum allowable deviation from design elevation for a finished asphalt surface per typical FDOT specifications?

Accepted Answer

1/4 inch

Answer

1/8 inch

Answer

3/8 inch

Answer

1/2 inch

Question 4

What does 'joint density' refer to in asphalt paving?

Accepted Answer

The density of the asphalt at longitudinal or transverse construction joints

Answer

The bond strength between tack coat and asphalt

Answer

The number of roller passes required per lift

Answer

The concentration of aggregates at the center of the mat

Question 5

What is a 'string line' used for during asphalt paving operations?

Accepted Answer

Controlling the elevation and alignment of the paver screed

Answer

Marking lane lines before paving

Answer

Measuring the width of the paving pass

Answer

Indicating areas where tack coat has been applied

Question 6

What condition requires the inspector to stop paving operations immediately?

Accepted Answer

Ambient temperature drops below 50°F during paving

Answer

A brief light rain shower passes over the site

Answer

The paver hopper drops to half full

Answer

The roller makes fewer than the specified number of passes