CDL PRACTICE TEST (TX) - GENERAL KNOWLEDGE TEST

31. Federal, state, and local regulations for commercial vehicles:
only apply to US residents.
only apply to CMV's operated in interstate commerce.
vary from place to place.
do not apply to CMV's operated in intrastate commerce.
32. Longer combination vehicles have the tendency to swing wide on turns. This is called:
off-tracking.
hydroplaning.
rollover.
jackknifing.
33. Most heavy vehicles require ________ change gears.
single clutching
double clutching
double shifting
triple shifting
34. When you have to back, you should always try to back toward the driver's side because:
you can see better and watch the rear of your vehicle out the side window.
it feels more natural.
backing toward the left side is more dangerous.
None of the above.
35. Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
100 psi
75 psi
50 psi
25 psi
36. When driving, do NOT:
warn the drivers behind by flashing your brake lights if you see a hazard that will require slowing down.
put your turn signal on before changing lanes.
try to help out other drivers by signaling when it is safe to pass.
assume that vehicles, pedestrians or bicyclists see you whenever you are about to pass them.
37. Which of the following statements about drinking alcohol is TRUE?
A 5-ounce glass of 12 percent wine contains the same amount of alcohol as a 12-ounce glass of 5 percent beer.
Coffee and a little fresh air will help a drinker sober up.
Alcohol only impairs judgement, not muscle coordination.
Alcohol only affects people who are not used to drinking.
38. If a load is placed on one side of the trailer:
your brakes won't work.
the steering axle weight will be too light to steer safely.
making turns may be easier.
a rollover is more likely.
39. When your rear wheels lock up, you may:
lose steering control.
gain better control of the vehicle.
skid, jackknife, or spin the vehicle.
All of the above.
40. Distracted driving can cause collisions. Which of the following can distract your attention while you are driving?
Driving below the speed limit.
Talking to passengers.
Listening to music.
All of the above.
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