ETC ETC Construction Methods & Field Operations 2

Question 1

What is the purpose of a grading plan in site development?

Accepted Answer

To define finished elevations, slopes, and drainage patterns for the site

Answer

To show the structural load path through the building

Answer

To indicate landscaping plant species and locations

Answer

To specify pavement thickness and materials

Question 2

What does 'proctor density' refer to in earthwork specifications?

Accepted Answer

The maximum dry density of soil determined by a standard laboratory compaction test

Answer

The strength of concrete at 28 days

Answer

The bearing capacity of native soil

Answer

The moisture content of imported fill material

Question 3

What is the purpose of a silt fence during construction?

Accepted Answer

To control erosion by trapping sediment from runoff water

Answer

To mark the construction site boundary

Answer

To support formwork during concrete placement

Answer

To separate different types of fill material

Question 4

What does the term R-value mean in the context of pavement design?

Accepted Answer

Resistance value of subgrade or base material measured by the Hveem stabilometer test

Answer

Thermal resistance of insulation materials

Answer

Rebound number from Schmidt hammer testing

Answer

Rutting resistance of asphalt at high temperature

Question 5

What is a construction submittal?

Accepted Answer

Documents, samples, or data submitted by the contractor for engineer approval prior to procurement or installation

Answer

A formal request to modify the project schedule

Answer

The contractor's final invoice at project closeout

Answer

A report of daily construction activities

Question 6

What is the primary purpose of dewatering during construction?

Accepted Answer

To remove groundwater from an excavation to allow work in dry conditions

Answer

To irrigate adjacent landscaping areas

Answer

To dispose of concrete washout water

Answer

To control dust on unpaved construction roads