2024 DC CDL Practice Test: HazMat - Test 6
Based on
2024 DC CDL Handbook
20. The interlock applies the brakes and holds the throttle in idle position. The interlock releases the brakes when ______.
A
When you close the rear door.
B
Only when you push the "release" button.
C
You turn off the vehicle and start it up again.
D
When you honk your horn.