VT CDL AIR BRAKES PRACTICE TEST

11. When going down grades, you should:
put the transmission in Neutral.
shift up.
downshift to a lower gear.
12. If your vehicle has dual parking control valves, you can use pressure from a separate tank to:
park better.
balance the service brakes while you are parked.
release the spring brakes so you can move the vehicle in an emergency.
13. ABS:
helps you avoid skids caused by over braking.
improves your visibility at night.
helps you stop faster.
14. If the safety relief valve in the air brake system releases air:
something is wrong.
the valve is fully operational.
this will supply more power to the brakes.
15. How can you tell if your vehicle is equipped with ABS (anti-lock braking system)?
Trucks, buses, trailers, and converter dollies built after 1998 are required to have ABS.
There is no way to tell, ABS is still optional on all vehicle types.
ABS is required on all vehicles manufactured on or after 2000.
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