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Additional Trade KIT
C-12 Earthwork and Paving
 
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C12 – Earthwork and Paving Contractor

An earthwork and paving contractor digs, moves, and places material forming the surface of the earth, other than water, in such a manner that a cut, fill, excavation, grade, trench, backfill, or tunnel (if incidental thereto) can be executed, including the use of explosives for these purposes. This classification includes the mixing, fabricating and placing of paving and any other surfacing materials.

Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)

Content of the Examination

The Earthwork and Paving (C-12) examination is divided into seven major sections. These sections are:

1. Estimating and Planning (15%)

  • Plans and specifications
  • Estimating earthwork
  • Estimating A.C., P.C.C. pavements, and seal coats

2. Site Control (7%)

  • Signage and traffic control
  • Dust, noise, and erosion control

3. Earthwork (31%)

  • Site layout and grade setting
  • Utilities and other site obstacles
  • Soil stability
  • Subgrade preparation
  • Trench excavation
  • Recycling of materials

4. Paving (25%)

  • Prep work for paving
  • Asphaltic concrete paving
  • Verification of mix design
  • Portland cement concrete paving

5. Paving Maintenance (7%)

  • Pavement preparation
  • Pavement sealants

6. Associated Paving Activities (5%)

  • Placement of risers and grade rings
  • Installation of curbs, gutters, sidewalks, and ramps
  • Parking and traffic markings

7. Safety (10%)

  • Personal safety
  • Jobsite safety

*Percentages are approximate*



Test Site Policy
   This is a closed-book examination. No reference materials may be used during the examination. All materials brought to the examination site must be left in an unmonitored area at your own risk.

Test Strategy
   This is a multiple choice examination with four choices per question. Some questions require mathematical computation. Examination questions are written to provide only one BEST answer and are NOT written as trick questions.
   All correct answers have equal value and there are no score reductions for wrong answers. Therefore, all examination questions should be answered.
   Ample time is provided to answer all examination questions, so be sure to read each question and its four choices completely and carefully before selecting the BEST possible answer to the question.



Sample Questions

The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.

1. What is the volume of a hole 120 feet long, 30 feet wide, and 6 feet deep?

  1. 500 cubic yards
  2. 800 cubic yards
  3. 1,200 cubic yards
  4. 1,300 cubic yards

2. What does the term "balanced dirt job" refer to?

  1. Thorough distribution of aggregate in the soil mix
  2. Level highway grade work without slopes or ditches
  3. No excess dirt in cut and fill work
  4. Proper compaction rate of the grade work

3. How many days does it take for standard portland cement concrete to reach maximum strength?

  1. 7 days
  2. 14 days
  3. 21 days
  4. 28 days

*All questions are written and reviewed by licensed contractors who are actively working in the field*



Resources
Excavation & Grading Handbook (Revised).
Nick Capachi, Craftsman Book Company,
6058 Corta del Cedro, Carlsbad, CA 92009.
Phone: (800) 829-8123
INTERNET: www.craftsman-book.com
ISBN -0934041-29-6

Moving the Earth - The Workbook of Excavation (4th edition).
Herbert Nichols, Jr. and David Day P.E.,
McGraw-Hill,
860 Taylor Station Road, Blacklick, OH 43004-0546.
Phone: (800) 262-4729
INTERNET: customer.service@mcgraw-hill.com
ISBN 0-07-046484-7

Standard Specifications (Caltrans Metric), July 1999.
Caltrans Publication Unit,
1900 Royal Oaks Drive, Sacramento, CA 95815-3800.
Phone: (916) 445-3520
INTERNET: www.caltrans-opac.ca.gov/publicat.htm

The Asphalt Handbook (1989 edition).
Manual Series No. 4 (MS-4).
Asphalt Institute,
2696 Research Park Drive, Lexington, KY 40511.
Phone: 1-859-288-4960
INTERNET: www.asphaltinstitute.org

Cal/OSHA Construction Safety Orders.
California Code of Regulations, Title 8, Industrial Relations, Chapter 4, Subchapter 4,
Barclays Law Publishers,
P.O. Box 95767, Chicago, IL 60694.
(800) 888-3600. FAX: (415) 732-8875.
OR Building News, Inc.
1612 S. Clementine Street, Anaheim, CA 92802.
(888) 264-2665.
INTERNET: ccr.oal.ca.gov/cgi-bin/om_isapi.dll or www.bni-books.com

*Publisher information is current as of 04/01*

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