Colorado CDL Practice Test - General Knowledge

41. Which of the following can cause front-wheel skid?
Lack of tread on the front tires.
Driving too fast for conditions.
Cargo loaded so not enough weight is on the front axle.
All of the above.
42. The first thing to do at an accident scene is to:
call for assistance.
file an accident report.
keep another accident from happening in the same spot.
help any injured parties.
43. On engine start, you should:
make sure the oil pressure gauge is working.
check that the master cylinder is securely attached and not leaking.
check for minimum tread depth.
check the oil level.
44. A bridge formula permits less maximum axle weight for axles that:
are closer together
are further apart than normal
have poor weight balance
have a high center of gravity
45. HAZMAT placards are:
speed signs
regulatory signs
optional signs
warning signs
46. Which of the following vehicles is most likely to turn over?
Triple trailer
5 axle tractor semitrailer
3 axle tractor semitrailer
65 ft. conventional double
47. Tar in the road pavement:
does not affect the road surface.
frequently rises to the surface in very hot weather.
increases the ability to maintain traction on a vehicle.
can slow down your vehicle.
48. Which of the following statements about alcohol is TRUE?
Taking a cold shower will help sober you up.
Most people can drink 2 beers without affecting their driving ability.
Drinking black coffee will help sober you up.
Time is the only method that works to sober you up.
49. Air tank drains:
should not be used in wet weather.
are used to move air to the brakes.
protect the tanks and the rest of the system from too much pressure.
are used to remove water and oil from the air tanks.
50. When crossing railroad tracks, you should:
stop on the tracks.
apply the parking brakes.
shift gears while crossing the tracks.
stay in your lane.
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