How Do I Get My Contractors License | C-60 Welding Contractor

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C60 – Welding Contractor

A welding contractor causes metals to become permanently attached, joined and fabricated by the use of gases and electrical energy, which creates temperatures of sufficient heat to perform this work.

The Welding (C-60) Examination is divided into six major sections. These sections are:

1. Job Evaluations and Estimating (10%)

Plans, Specifications, and Drawings
Equipment, Materials, and Supplies
Job Task Scheduling

2. Shop Equipment and Materials (20%)

Shop Equipment
Shop Materials, Consumables, and Reports
Shop Housekeeping and Safety

3. Fabrication (19%)

Shop Layouts
Shop Cutting
Grinding, Forming, and Tack Welding

4. Welding Processes (12%)

Brazing
Gas Welding
Arc Welding

5. Field Work (29%)

Field Layouts and Installations
Field Welding and Weld Symbols
Field Equipment and Transporting
Field Housekeeping and Safety

6. Repair Processes (10%)

Repair Evaluations
Repair Processes

*Percentages are approximate*

Sample Questions

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

1. Which of the following statements about brazing are FALSE?

a. When brazing a lap joint, the two surfaces should not be tightly clamped together to assure proper alignment.

b. The brazing process occurs below 2000 degrees Fahrenheit.

c. A brazed joint is stronger than a soldered joint.

d. Brazing filler metal is usually nonferrous.

2. When using DCRP arc welding, about 2/3 of the heat is released at the electrode. Approximately how much heat is released at the electrode for DCSP?

a. 3/4

b. 2/3

c. 1/3

d. 1/4

3. How should a worker be welding a lap joint in a flat position on plate steel?

a. Use a weaving motion so more heat is distributed to the bottom piece of metal.

b. Use a weaving motion so more heat is distributed to the top piece of metal.

c. Both pieces being welded should receive an equal amount of heat.

d. The piece having its edge welded should receive the most heat.

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

Resources

Cal/OSHA Construction Safety Orders.

California Code of Regulations, Title 8,
Industrial Relations, Division 1, Chapter 4, Subchapter 4.
Barclays Law Publishers,
P.O. Box 95767,
Chicago, IL 60694.
(800) 888-3600
FAX: (415) 732-8861.
INTERNET: ccr.oal.ca.gov

AWS D1.1 Structural Welding Code – Steel.

American Welding Society.
550 N.W. LeJeune Road,
Miami, FL 33126.
(800) 443-9353 or (305) 443-9353.
INTERNET: www.aws.org

Modern Welding.

The Goodheart-Wilcox Co., Inc.,
123 W. Taft Dr.,
South Holland, IL 60473.
(708) 333-7200
FAX: (888) 409-3900.
INTERNET: www.goodheart-willcox.com

The Welder’s Handbook.

Reston Publishing Co., Inc.
(a Prentice-Hall Co.)
Reston, VA 22090.
(703) 821-5050
FAX: (703) 917-0991.
INTERNET: www.prenticehall.com

The Manager's Guide for Welding.

SMACNA,
4201 Lafayette Center Dr.,
Chantilly, VA 22021-1209.
(703) 803-2980
FAX: (703) 803-3732.
INTERNET: www.smacna.org