MAINE CDL COMBINATION PRACTICE TEST
11.
Passive railroad crossings:
|
should never be crossed using a CMV.
|
|
|
have at least one traffic control device.
|
|
|
do not have traffic control devices.
|
12.
Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
|
less; more
|
|
|
greater; more
|
|
|
greater; less
|
13.
If your trucks has a high center of gravity, which of the following is true for curves?
|
You should travel at the posted speed limit.
|
|
|
Reduce your speed to a crawl.
|
|
|
You should slow down, as your truck can roll over at the posted speed limit for the curve.
|
14.
During your inspection, you should look into the fifth-wheel gap and check that the _________ are fully closed around the kingpin.
|
locking jaws
|
|
|
couplings (U-joints)
|
|
|
mounting bolts
|
15.
If ABS is not working:
|
you should use the parking brake.
|
|
|
you will still have brakes.
|
|
|
you should use the emergency brake.
|
16.
What is a tractor jackknife?
|
When the wheels of a trailer lock up, and the trailer swings around.
|
|
|
When a drive-wheel skid lets the trailer push the towing vehicle sideways.
|
|
|
None of the above.
|
17.
If you try to couple when the trailer is too low:
|
it might not couple correctly.
|
|
|
the tractor may strike and damage the trailer nose.
|
|
|
the tractor could roll away.
|
18.
If a worker is close to the roadway in a work zone, you should:
|
drive at the posted speed limit.
|
|
|
pull off the road and stop.
|
|
|
reduce your speed below the posted speed limit.
|
19.
Poor weight balance:
|
can make vehicle handling more difficult.
|
|
|
improves handling.
|
|
|
increases fuel efficiency.
|
20.
You have two tie-downs on a 15 foot load. How many more tie-downs do you need to secure cargo and keep it from shifting or falling?
|
Two
|
|
|
One
|
|
|
None
|
GRADE ME
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More