C-10 exam practice questions, free PDF
40 practice questions with the answers and explanations: 4 from every section of the C-10 Trade and Law & Business exams. Print it, take it to work, mark it up.
- 20 Trade exam questions, 4 from each of the 5 sections
- 20 Law & Business questions, 4 from each of the 5 sections
- An answer key with the explanation and the code section for every answer
No email, no account.
Practice questions written to the official C-10 exam sections. Not actual CSLB exam questions, which are confidential.
A few of the questions inside
Pick your answer, then check it.
Using the optional multifamily method, a 20-unit apartment building applies a Table 220.84 demand factor of:
- A. 45 percent
- B. 43 percent
- C. 41 percent
- D. 38 percent
Show the answer
Answer: D. 38 percent
Table 220.84(B) gives 38 percent for 18-20 dwelling units.
Reference: CEC Table 220.84
Using I = E ÷ R, a 240 V heating element with a resistance of 16 ohms draws a current of:
- A. 7.5 A
- B. 15 A
- C. 30 A
- D. 3,840 A
Show the answer
Answer: B. 15 A
I = E ÷ R = 240 V ÷ 16 ohms = 15 A.
Reference: Arithmetic
The contractor license bond increased to its current amount effective:
- A. it never changed
- B. January 1, 2023
- C. 2010
- D. 2026
Show the answer
Answer: B. January 1, 2023
The bond increased to $25,000 effective January 1, 2023.
Reference: SB 607 (B&P §7071.6)
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