The (C-60) Welding Exam, Sample Questions and Source Documents
CSLB exam centers are located in:
- San Bernardino
- San Diego
- San Jose.
Exams are given Monday through Friday, excluding holidays.
You will be required to present picture I.D.at the test center. (Drivers License, California I.D., Military I.D or Passport)
Each exam is a closed book four choice (A, B, C, or D) multiple-choice test. There is no writing required. Each exam is taken on a computer however no computer experiance is required.
The Law exam consists of 115 questions and The Trade exams range between 100 and 120 questions each. If you are taking both the trade and the law exams they will be administered to you back to back on the same day. You are allowed approximately 2.5 hours for each exam, but typically the State gives you ample time to complete the tests. You need approximately 70% correct answers to pass. You can retake the exam multiple times if you are unsuccessful.
Exam Content – The (C-60) Welding Exam has five major sections, these are.
1. Planning and Estimating (23% of Exam)
- Plans, Specifications, and Drawings
- Equipment, Materials, and Supplies
2. Welding Preparation (17% of Exam)
- Material preparation
- Job preparation
3. Welding Brazing and Soldering (26% of Exam)
- Welding Processes
- Post-welding Procedures
- Brazing and soldering
4. Cutting Processes (8% of Exam)
- Layout and placement of cables
- Stressing of cables
- Post-welding Procedures
5. Safety (26% of Exam)
- Job site safety
- Personnel safety
*Percentages are approximate*
Exam Sample Questions – The following questions are typical of the types of items that are on the examination.
2. Approximately how much heat is released at the electrode for DCSP welding?
1. If a welder is welding at 300 amps and the combined length of the electrode and work leads is 150 feet, what is the recommended size of the lead or cable?
3. Alternating current would most likely be used in GTAW to weld which of the following metals?
a. Low carbon steel
b. Deoxidized copper
c. Stainless steel
4. What is the MINIMUM thickness of steel that is covered by the AWS D1.1 Structural Steel welding code?
5. When welding with FCAW, how can the operator control excess spatter?
a. Change the drag angle.
b. Run stringer beads.
c. Shorten the stickout.
d. Lengthen the stickout.
*All questions are written and reviewed by licensed contractors*
Exam References – The following publications were utilized in the creation of the (C-60) trade exam. Additional sources for purchasing materials may be available online.
The Managers’ Guide for Welding. Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA).
PHONE: (703) 803-2980
Modern Welding. The Goodheart-Wilcox Co., Inc.
PHONE: (800) 323-0440
Safety in Welding, Cutting, and Allied Processes, ANSI Z49.1. American Welding Society.
PHONE: (305) 826-6193
Standard Symbols for Welding, Brazing, and Nondestructive Examination, A2.4. American Welding Society.
PHONE: (305) 826-6193
State of California General Industry & Electrical Safety Orders (Cal/OSHA) and State of California Construction
Safety Orders (Cal/OSHA). 2012. California Code of Regulations, Title 8.
PHONE: (877) 626-2666
VIEW ONLINE: www.dir.ca.gov/dosh/LawAndRegulations.htm
Structural Welding Code –Steel, D1.1. American Welding Society.
PHONE: (305) 826-6193
*Publisher information is current as of 7/14*
Test Site Policy – The contractor licensing exam is a closed-book examination. No reference materials are allowed during the exam. you will not be permitted entry with any reference materials.
Test Strategy – The contractor licensing exam is a four choice multiple-choice exam. You will have four choices per question. Some questions may require mathematical computation. All exam questions are written to provide only one BEST answer and are NOT written as trick questions.
All correct answers have the same point value. It is better to try to answer a question with the chance to possibly get it correct (and earn points) than it is to leave that question blank and definitely get it wrong (and lose points).
Ample time is provided to answer all exam questions, so be sure to read all questions and answers completely and carefully before selecting the BEST possible answer to the question.
CHOOSE THE BEST ANSWER!
(Apply this strategy to any questions when you do not know the answer to the question)
Look at the surrounding answers to any question you do not know – Research has found that correct answer choices are hardly repeated for consecutive questions, so looking at the answers of the questions you know will help you figure out the questions you are stuck on. For example, if you’re stuck on (question 5), but know that the answer to (question 4) is (B) and the answer to (question 6) is (A), then the answer to (question 5) is most likely (C) or (D). HOWEVER, “knowing is always better then guessing,” Cross out any answers you know are wrong based on facts first.
Research has also found that the answer “ALL OF THE ABOVE” or “NONE OF THE ABOVE” is correct approximately 52% of the time. Choosing this answer will statistically give you a 90% improvement over simply guessing the answer when either of these choices are available.
Choose the longest answer – Research also indicates that the longest answer on multiple-choice exams is usually correct. “Test makers must ensure that correct answers are indisputably correct,”. “This can often demand some qualifying language. Test makers may not try so hard with the incorrect answers.” If one choice is noticeably longer than its counterparts, it’s likely the correct answer.
Eliminate the bad answers first – Most exam questions always feature one or more answers which are obviously wrong: for example let’s look at this question:
What is the relationship between a prime contractor and a subcontractor?
B. contractor to subcontractor
D. no relationship
Now we are going to look for bad answers first by looking at the question and comparing it to the various answers,
First we know that on a specific project a subcontractor is not an employee of the prime contractor. They are a subcontractor so we can quickly discount answer (A). Personally I like answer (B) because it looks like it might be correct so I am going to consider it for now. I also like answer (C) because they are both contractors and hired by contract. One holds the contract for the primary project and one holds a contract with the prime contractor. (D) No relationship, This answer makes no logical sense. A subcontractor is always employed by a prime contractor. We have now eliminated both (A) and (D) so guessing the correct answer is 50/50 instead of having only a 25% chance of getting it right.
Let’s look at (B) and (C), to see if we can’t improve our choice to 100% correct. The contractor to subcontractor (B) relationship is contractual (C) because the subcontractor is not an employee of prime contractor. I would choose (C) Contractual as it is the most complete answer.
The Correct Answer is C