AIR BRAKES PRACTICE TEST - NEW JERSEY
21.
The parking brake:
|
should be used when you need to apply the brakes firmly.
|
|
|
should be used when driving in bad weather.
|
|
|
should be used whenever you park.
|
|
|
All of the above.
|
22.
You should check air pressure and temperature gauges:
|
at the end of each trip.
|
|
|
every time you stop.
|
|
|
as often as is practical.
|
|
|
at the beginning of each trip.
|
23.
When meeting an oncoming vehicle at night, if the other driver does not put their low beams on, you should:
|
"get back at the other driver" by putting your own high beams on.
|
|
|
look slightly to the right to avoid looking directly at the lights of the oncoming vehicle.
|
|
|
flash your high beams at the other driver.
|
|
|
slow down and look straight ahead in your lane.
|
24.
You supply air to the trailer brake system by:
|
plugging the electrical cord into the trailer.
|
|
|
pushing in the trailer air supply knob.
|
|
|
pulling out the trailer air supply valve.
|
|
|
connecting the tractor service air line to the trailer service glad hand.
|
25.
In some vehicles a modulating control valve may be used to:
|
apply the parking brake.
|
|
|
decrease the pressure in the brake system.
|
|
|
apply the front brakes.
|
|
|
apply the spring brakes gradually.
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More