DMV Class B License: General Knowledge Test 2022 with
complete solution
CDL medical certificates must be renewed every:
a) Year
b) Two Years
c) Four years
b) Two Years
What should you do when you are driving at night?
a) Make sure you are driving slow enough so you can stop within the range of
your headlights in an emergency
b) Roll down your windows so that the fresh air will help keep you awake
c) If you are sleepy, drink coffee or other caffeine products
a) Make sure you are driving slow enough so you can stop within the range of your
headlights in an emergency
What are three things that add up to the total stopping distance for your truck or
bus?
a) Attention distance, Reaction distance, slowing distance
b) Observation distance, response distance, braking distance
c) Perception distance, reaction distance, braking distance
c) Perception distance, reaction distance, breaking distance
You are checking your steering and exhaust systems in a pre-trip inspection.
Which of these problems, if found, should be fixed before the vehicle is driven?
a) Oil on the rod
b) Black smoke from the exhaust pipe
c) Steering wheel play of more than 10 percent (2'' on a 20'' steering wheel)
c) Steering wheel play of more than 10 percent (2'' on a 20'' steering wheel)
The purpose of retarders is to:
a) Apply extra braking power to the non-drive vehicles
b) Help prevent skids
c) Help slow the vehicle while driving and reduce brake wear
c) Help slow the vehicle while driving and reduce brake wear
, Which of these is especially true about your tires in hot weather?
a) You should check tire mounting and air pressure before driving
b) If the tire is too hot to touch, you should hose it down with water
c) A small amount of air should be let out so air pressure remains steady
a) You should check tire mounting and air pressure before driving
Which of these is usually true about driving in tunnels?
a) Headlights are required by law
b) There may be strong winds when exiting
c) Speeds are limited to 30 MPH or less
b) There may be strong winds when exiting
When driving through work zones, you should:
a) Reduce speed only if workers are close to the roadway
b) Turn on your parking lights
c) Watch for sharp pavement drop-off
c) Watch for sharp pavement drop-off
A pre-trip inspection should be completed:
a) At least once a week
b) If any problems occurred the last time the vehicle was operated
c) Before operating the vehicle
c) Before operating the vehicle
Water can be safely used on which of these fires?
a) Electrical
b) Gasoline
c) Neither of the above
c) Neither of the above
What should you do when your vehicle hydroplanes?
a) Start stab braking
b) Release the accelerator
complete solution
CDL medical certificates must be renewed every:
a) Year
b) Two Years
c) Four years
b) Two Years
What should you do when you are driving at night?
a) Make sure you are driving slow enough so you can stop within the range of
your headlights in an emergency
b) Roll down your windows so that the fresh air will help keep you awake
c) If you are sleepy, drink coffee or other caffeine products
a) Make sure you are driving slow enough so you can stop within the range of your
headlights in an emergency
What are three things that add up to the total stopping distance for your truck or
bus?
a) Attention distance, Reaction distance, slowing distance
b) Observation distance, response distance, braking distance
c) Perception distance, reaction distance, braking distance
c) Perception distance, reaction distance, breaking distance
You are checking your steering and exhaust systems in a pre-trip inspection.
Which of these problems, if found, should be fixed before the vehicle is driven?
a) Oil on the rod
b) Black smoke from the exhaust pipe
c) Steering wheel play of more than 10 percent (2'' on a 20'' steering wheel)
c) Steering wheel play of more than 10 percent (2'' on a 20'' steering wheel)
The purpose of retarders is to:
a) Apply extra braking power to the non-drive vehicles
b) Help prevent skids
c) Help slow the vehicle while driving and reduce brake wear
c) Help slow the vehicle while driving and reduce brake wear
, Which of these is especially true about your tires in hot weather?
a) You should check tire mounting and air pressure before driving
b) If the tire is too hot to touch, you should hose it down with water
c) A small amount of air should be let out so air pressure remains steady
a) You should check tire mounting and air pressure before driving
Which of these is usually true about driving in tunnels?
a) Headlights are required by law
b) There may be strong winds when exiting
c) Speeds are limited to 30 MPH or less
b) There may be strong winds when exiting
When driving through work zones, you should:
a) Reduce speed only if workers are close to the roadway
b) Turn on your parking lights
c) Watch for sharp pavement drop-off
c) Watch for sharp pavement drop-off
A pre-trip inspection should be completed:
a) At least once a week
b) If any problems occurred the last time the vehicle was operated
c) Before operating the vehicle
c) Before operating the vehicle
Water can be safely used on which of these fires?
a) Electrical
b) Gasoline
c) Neither of the above
c) Neither of the above
What should you do when your vehicle hydroplanes?
a) Start stab braking
b) Release the accelerator
