Air Brake (Q Endorsement) Practice · Question
Before disconnecting a trailer, the spring brakes on the trailer must be:
Apply trailer spring brakes (park valve in) before disconnecting glad-hands to prevent rollaway.
Start free practice for Air Brake (Q Endorsement) Practice
400 questions · no signup required · 40 free questions per day
Question: Before disconnecting a trailer, the spring brakes on the trailer must be:
Answer options:
- Released ✅ Applied (park valve in)
- Removed
- Disabled
Correct answer: Applied (park valve in)
Explanation: Apply trailer spring brakes (park valve in) before disconnecting glad-hands to prevent rollaway.
Start free practice for Air Brake (Q Endorsement) Practice
400 questions · no signup required · 40 free questions per day
More about Air Brake (Q Endorsement) Practice
Related Questions
- Scenario 36: The main advantage of air brakes over hydraulic brakes is:
- Scenario 1: The main advantage of air brakes over hydraulic brakes is:
- Scenario 71: The main advantage of air brakes over hydraulic brakes is:
- Scenario 106: The main advantage of air brakes over hydraulic brakes is:
- Scenario 141: The main advantage of air brakes over hydraulic brakes is:
- Scenario 176: The main advantage of air brakes over hydraulic brakes is:
More for Air Brake (Q Endorsement) Practice candidates
Study guides
Question explanations
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Air Brake (Q Endorsement) Practice Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.