COMMERCIAL DRIVER LICENSE EXAM
COMPREHENSIVE QUESTIONS AND VERIFIED
DETAILED ANSWERS/ NEWEST UPDATE!!
If a vehicle transporting explosives is involved in an accident, what should be done
before moving the vehicles apart. - ans -Remove all explosives before pulling
them apart, place the explosives at least 200 feet from the vehicle and occupied
buildings, keep bystanders away (all of the above)
while on a trip, what should you check on a regular basis - ans -watch gauges, use
your senses, and check critical items when you stop
the emergency door on your bus must - ans -it must be closed when operating the
bus
which of the following best describes the basic characteristics of the center of
gravity - ans -the center of gravity can make a vehicle more likely to tip over on a
curve if it is high
vehicle inspection is intended for which purpose - ans -to find problems that could
cause a crash or breakdown
for the best control of your vehicle, which maneuver is best - ans -slow to a safe
speed before entering the curve, than accelerate slightly through the curve
which is true about marking a stalled or wrecked vehicle - ans -if a hill or curve
prevents approaching vehicles from seeing your vehicle within 500 feet, the
reflective triangle should be moved back down the road to give adequate warning
inspection of your vehicle should be done - ans -before and after a trip
when driving at the posted speed limit, how far ahead should you look - ans -one
fourth a mile (1/4)
you are checking your brakes and suspension system for a pre trip inspection,
which of these statements is true - ans -brake shoes should not have oil, grease,
,or brake fluid on them, brake pads should not have brake fluid on them, and one
missing leaf in the leaf springs can be dangerous.
what is the minimum tread depth requirements for front tires - ans -4/32 inches
which of these should you not do when you pass a vehicle - ans -when passing at
night, turn on your high beams before you start to pass, and keep them on until
you have completely passed the vehicle
you may not run which of the following on the front wheels of your vehicle - ans -
re grooved tires, recapped tires, and retreaded tires
when you down shift you should - ans -down shift for a curve before you enter it
the parking or emergency brake on a heavy vehicle can only be held in position by
something that cannot leak away. an example would be - ans -spring pressure
a drivers brake may be adversely affected if they have the following substances
on them - ans -oil, grease, and brake fluid
which of these could cause a vehicle to skid - ans -turning to sharply, not enough
weight on the front axle, and over acceleration
steering wheel play of more than ..... can make it hard to steer - ans -ten degrees
which of the following is not a key part of the suspension system - ans -pitman
arm
which of the following should be on your bus at all times in case of an emergency
- ans -fire extinguisher, spare electrical fuses if needed, and warning devices for
parked vehicles
which of these statements about double clutching and shifting is true - ans -you
can use the tachometer to tell you when to shift
how long can an unsafe vehicle be put our of service - ans -until the driver fixes it
or until the owner fixes it
, which of these should be considered a hazard - ans -an ice cream truck, a blind
intersection, and a driver signaling a turn (all of the above)
of the following choices, which best describes how you should use your brake
pedal when going down a steep hill - ans -a light steady pressure
inspection of the vehicle by the driver is mandated by - ans -federal state laws
when you dim your lights at night, what should you do about your speed - ans -
slow down
of the following statements, which is true about speed - ans -you should choose a
speed that will allow you to stop within the distance you can see ahead
a straight truck or bus air brake system should not lead at a rate of more than...
psi per minute with the engine off and the brakes released - ans -two psi per
minute
which of these statements about drugs is true - ans -the use of drugs is a hazard
which of the following is not an emergency equipment item - ans -shackle bracket
what should you do if a low air pressure warning comes on - ans -bring the vehicle
to a safe stop
which of following statements would tell you a shipment contains hazardous
materials - ans -a hazardous material placard on the vehicle, a hazardous material
label on the container, and the name of a hazard class on the shipping paper.
Which one of the following skills is not required to be demonstrated for safe
operation of a commercial vehicle - ans -Passenger control
an alcohol evaporator is designed to do what for your brakes - ans -to reduce the
chance of ice in air brakes valve in cold weather
COMPREHENSIVE QUESTIONS AND VERIFIED
DETAILED ANSWERS/ NEWEST UPDATE!!
If a vehicle transporting explosives is involved in an accident, what should be done
before moving the vehicles apart. - ans -Remove all explosives before pulling
them apart, place the explosives at least 200 feet from the vehicle and occupied
buildings, keep bystanders away (all of the above)
while on a trip, what should you check on a regular basis - ans -watch gauges, use
your senses, and check critical items when you stop
the emergency door on your bus must - ans -it must be closed when operating the
bus
which of the following best describes the basic characteristics of the center of
gravity - ans -the center of gravity can make a vehicle more likely to tip over on a
curve if it is high
vehicle inspection is intended for which purpose - ans -to find problems that could
cause a crash or breakdown
for the best control of your vehicle, which maneuver is best - ans -slow to a safe
speed before entering the curve, than accelerate slightly through the curve
which is true about marking a stalled or wrecked vehicle - ans -if a hill or curve
prevents approaching vehicles from seeing your vehicle within 500 feet, the
reflective triangle should be moved back down the road to give adequate warning
inspection of your vehicle should be done - ans -before and after a trip
when driving at the posted speed limit, how far ahead should you look - ans -one
fourth a mile (1/4)
you are checking your brakes and suspension system for a pre trip inspection,
which of these statements is true - ans -brake shoes should not have oil, grease,
,or brake fluid on them, brake pads should not have brake fluid on them, and one
missing leaf in the leaf springs can be dangerous.
what is the minimum tread depth requirements for front tires - ans -4/32 inches
which of these should you not do when you pass a vehicle - ans -when passing at
night, turn on your high beams before you start to pass, and keep them on until
you have completely passed the vehicle
you may not run which of the following on the front wheels of your vehicle - ans -
re grooved tires, recapped tires, and retreaded tires
when you down shift you should - ans -down shift for a curve before you enter it
the parking or emergency brake on a heavy vehicle can only be held in position by
something that cannot leak away. an example would be - ans -spring pressure
a drivers brake may be adversely affected if they have the following substances
on them - ans -oil, grease, and brake fluid
which of these could cause a vehicle to skid - ans -turning to sharply, not enough
weight on the front axle, and over acceleration
steering wheel play of more than ..... can make it hard to steer - ans -ten degrees
which of the following is not a key part of the suspension system - ans -pitman
arm
which of the following should be on your bus at all times in case of an emergency
- ans -fire extinguisher, spare electrical fuses if needed, and warning devices for
parked vehicles
which of these statements about double clutching and shifting is true - ans -you
can use the tachometer to tell you when to shift
how long can an unsafe vehicle be put our of service - ans -until the driver fixes it
or until the owner fixes it
, which of these should be considered a hazard - ans -an ice cream truck, a blind
intersection, and a driver signaling a turn (all of the above)
of the following choices, which best describes how you should use your brake
pedal when going down a steep hill - ans -a light steady pressure
inspection of the vehicle by the driver is mandated by - ans -federal state laws
when you dim your lights at night, what should you do about your speed - ans -
slow down
of the following statements, which is true about speed - ans -you should choose a
speed that will allow you to stop within the distance you can see ahead
a straight truck or bus air brake system should not lead at a rate of more than...
psi per minute with the engine off and the brakes released - ans -two psi per
minute
which of these statements about drugs is true - ans -the use of drugs is a hazard
which of the following is not an emergency equipment item - ans -shackle bracket
what should you do if a low air pressure warning comes on - ans -bring the vehicle
to a safe stop
which of following statements would tell you a shipment contains hazardous
materials - ans -a hazardous material placard on the vehicle, a hazardous material
label on the container, and the name of a hazard class on the shipping paper.
Which one of the following skills is not required to be demonstrated for safe
operation of a commercial vehicle - ans -Passenger control
an alcohol evaporator is designed to do what for your brakes - ans -to reduce the
chance of ice in air brakes valve in cold weather
