Free California Doubles/Triples CDL Practice Test 2025

Master doubles and triples with real California DMV questions and expert explanations

10 Questions

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What is a Doubles/Triples Endorsement?

The Doubles/Triples endorsement is required to operate commercial vehicles pulling two or three trailers. This endorsement covers coupling procedures, inspection techniques, and the unique handling characteristics of multiple trailers.

Things to Know:

20 questions, 80% to pass, 30 minutes
State regulations vary - some states restrict or prohibit triples
California endorsement fee: $58

Career Opportunities:

LTL freight companies
Long-haul transportation
Specialized freight haulers
Interstate commerce

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California Important Note:

California generally prohibits triple trailers on most highways. This endorsement primarily applies to doubles operations in California.

California Doubles/Triples CDL Test Topics

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Coupling and Uncoupling (8 questions)

• Proper coupling procedures
• Air line connections
• Safety chain attachments

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Inspection Procedures (6 questions)

• Multi-trailer inspection techniques
• Converter dolly checks
• Air brake system inspection

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Driving Techniques (4 questions)

• Backing and turning procedures
• Space management
• Speed and following distance

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Safety Considerations (2 questions)

• Rollover prevention
• Emergency procedures

California Doubles/Triples Study Tips

1
Master coupling and uncoupling procedures
2
Understand the crack-the-whip effect
3
Practice backing maneuvers mentally
4
Know increased stopping distances
5
Note: Triples are prohibited on most California highways
6
Focus on doubles operations and California highway restrictions

What to Expect on the Exam

20

Questions

16

Correct to Pass

80%

Passing Score

Multiple choice format

Computer-based testing

30 minutes time limit

Immediate results

Frequently Asked Questions About California Doubles/Triples CDL

When do I need a doubles/triples endorsement in California?

You need this endorsement to drive commercial vehicles pulling two or three trailers, subject to state highway regulations.

How many questions are on the doubles/triples test?

The doubles/triples endorsement test consists of 20 multiple-choice questions. You need to answer 16 correctly (80%) to pass.

How long do I have to complete the doubles/triples test?

California DMV allows 30 minutes to complete the doubles/triples endorsement test. This time limit applies at all California testing locations.

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