IOWA CDL AIR BRAKES PRACTICE TEST

16. To control your speed on a downgrade, you should:
use engine braking.
use controlled braking.
fully apply the brakes.
17. You hear a loud "bang" which sounds like a tire blowout. You should:
keep driving as normal.
assume you have a tire failure.
check the tires at the next stop.
18. Vehicles with ABS have ______ ABS malfunction lamps on the instrument panel.
orange
yellow
green
19. If your truck catches fire, the first thing you should do is to:
get the vehicle off the road and park near other vehicles.
pull into a service station and call for help.
pull off the road and park in an open area.
20. Air storage tanks:
use parts of the service brake systems to stop the vehicle in a brake system failure.
hold compressed air for the brakes.
pump air into the air storage tanks.
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