General knowledge Flashcards
which of these is not a type of retarder?
Robotic
trucks. and buses are subject to certain law and regulations. which of these is true?
laws and restrictions can vary from place to place
when approaching a bridge on a two way road, you should:
check the weight limit of the bridge
which of these statements about accidents are true?
many heavy vehicle accidents occur between midnight and 6 am
which of the statements about inspection of the suspension components is true?
axel mount should be checked at each point they are secured on the vehicle frame and axels
you are checking your brakes and suspension system for a pre-trip inspection. which of these statements is true?
brake shoes should not have oil, grease, or brake fluid on them
why may tourist be a hazard?
they may move slowly, unexpectedly change lanes, or stop
what keeps the engine cool in hot weather driving ?
enough engine oil level
cargo inspection
should be preformed after every break while driving.
a vehicle is loaded with very little weight on the drive axel. what may happen
poor traction
if your vehicle catches fire while you are driving, you should
park in an open area
turn signal should be used
at least 100 feet before turning or changing lanes
when should you test your parking brake
while the vehicle is parked
should brake adjustments be checked often
yes, because the brakes can get out of adjustment when they are used alot
which of these is true about mirror adjusting?
you should adjust your mirrors before starting your trip
when you are driving on a snow packed road, you should reduce your speed by?
1/2
the bridge formula?
permits less maximum axel weight for the axles that are close together
which of these is true about hours of service?
you should allow enough hours to rest
which of these is true about the use of drugs while driving?
prescription drugs are allowed if a doctor says they will not effect your driving ability
which of these is true about the proper use of a steering wheel?
if you do not hold the wheel with both hands, it can pull away from you
when does a helper need to be used to back your vehicle?
whenever you have to back
you should continuously while turning becuase:
you need both hands on the wheel to turn safely
which of these should be tested on the vehicle to stop?
service brakes
which of these statements about alcohol is not true
the person drinking can control how fast his body absorbs the alcohol
overweight, oversized loads
require special permits
which of the statements about braking is true?
the heavier a vehicle is or the faster it is moving, the more heat the brakes have to absorb to stop it
which of these pieces of emergency equipment should always be carried in your vehicle.
warning devices for parking vehicle
while mountain driving, you should go slow for safety. which of these is the most important?
weight of the vehicle
you must keep the papers about hauling hazardous materials
in the pouch of the driver door
you will be placed out of service for 24 hours if you blood alcohol concentration is at least
any detectable amount
what does emergency braking mean
responding to a hazard by slowing the vehicle
you should try to park so that
you can pull forward when you leave
which of these statements about using the engine brake is true ?
the use of the brakes on a downgrade add to the braking effect of the engine
after starting the engine
the oil pressure gauge should be read right to normal
whenever you double your speed, your vehicle has about how many times of destructive power if it crashes
4
if you do not have a CB radio, what is the procedure you should do on the accident scene?
protect the area
a hazard
is any road condition or other road user that is possible danger
you are driving a heavy vehicle. you must exit a highway using an off ramp that curves downhill. you should
slow down to 5 mph below the posted speed limit
which of these rigs have more chances to off track while making a turn
tractor with a 45 foot trailer
how much space in front of you is needed while driving on a highways
one second for each 10 feet of vehicle length
medicine used to treat the common cold
often makes you sleepy and should not be used while driving
which of these should you not do in an emergency situation?
it is not important how you brake in an emergency situation.
the primary cause of fatal crashes is
driving too fast
a car suddenly cuts in front of you, creating a hazard. which of these actions should you not take
honk your horn and stay close behind the car
why does your vehicle speed naturally increase on a downgrade?
gravity
during the vehicle inspection, checking of BLANK will not prevent a fire
battery fluid level
when is it necessary to learn how to use a fire extinguisher works?
before the fire happens
what is the most important reason to inspect your truck or bus?
safety
why is it important to shift gears correctly?
to keep control of the vehicle
what three distances build up the total stopping distance of your truck or bus
-perception
-reaction
-braking
extra care is needed to keep your vehicle centered in your lane becuase commercial vehicles
are often wider than other vehicles
you should lightly apply your brakes to flash the brake lights if
you are about to exit the road and need to slow down
merging onto the road is safest if you
wait for a large enough gap in the traffic to enter the road
which of these is something you should do if your headlights are not working properly
leave on your highbeams
which of these statements about backing a heavy vehicle is NOT true
because you cannot see, you should back slowly until you slightly bumped into the dock
what does emergency braking mean
responding to a hazard by slowing the vehicle
which of these is true about notifying the authorities after an accident
if you have a cellular phone or CD radio, you should notify before exiting the vehicle
if you are unsure what to use to put out a hazardous material fire you should:
wait for the firefighters
which of these is NOT a danger of rough acceleration
tire damage
which of these lights cannot be checked at the same time
-turn signals, brake lights, and four way flashers
you are inspectinh hydraulic brakes. you should pump the brake pedal 3 times, then apply firm pressure to the pedal for 5 seconds. if the brakes are working properly, the pedal should:
not move
drivers of trucks and tractor-trailers with cargo must check that the cargo is well secured within the first BLANK miles of the trip
25
when starting a bus on a level surface with good traction there is often no need for
parking brakes
how does the weight of the vehicle effect stopping distance?
empty truck take longer to stop than if loaded, but this is not normally the case for buses
which of the following is NOT a characteristic of the front tire failure
vehicle fishtail
most skids
are caused by going too fast or trying to stop too quicklyi
in bad weather, many car drivers tailgate large vehicles. what should you do
increase your following distance
which of the following systems should receive extra attention during winter inspection
exhuast system
when mountain driving you will have to use a lower gear to drive safely on a grade. which of these does NOT affect your choice of gear?
tire tread’s depth
what should you do before driving in the mountains?
know escape ramp locations on your way
which of these is true about tires and hot weather
you should check pressure before driving
your driving through heavy rain or snow. you can hardly see what is going on outside. you can let the other drivers know about you by
turning on your low beam headlights
to prevent a load from shifting, there should be at least one tie down for every BLANK feet of cargo
10
while driving, ice builds up on your wipers and they no longer clean the windshield. you should
stop safely and fix the problem
when the hydraulic brakes fail while you are driving, the system will not build up pressure and the brake pedal will feel spongy or go to the floor. what should you do
pump the brake pedal to generate pressure
which may be a sign of tire failure
vibration
if you are convicted for driving under the influence while driving a commercial vehicle, and this is your first offense, you most likely will get
at least one year suspension of your CDL
if you are stopped at a roadside rest area and found to have a BAC of .02 you will.
be placed out of service for 24 hours
which of the following statements about speed managment is true
if you double your speed, stopping distance will be increased by 4 times
which of the following vehicles will have the longest stopping distance
bobcat tractor
how many red reflective triangles are you required to carry?
3
what is countersteering
turning the wheel back in the other direction after steering to avoid a traffic emergency
which of these statements about backing a heavy vehicle is true?
you should avoid backing whenever you can
which of these statements about marking a stopped vehicle is true?
if a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet, the rear reflective triangle should be moved down the road to give adequate warning
which of these best describes how you should the brake pedal on a steep downhill grade?
light steady pressure
which of these is true about hauling hazardous materials?
such a load should be marked with four inch diamond shaped labels on the containers.
which vehicle will have the most difficulty staying in its lane during strong winds?
a double with an empty trailer
which of these is true about radiator shutters and the winter front during the winter driving
ice should be removed from the radiator shutter
what kind of optional equipment could be in your vehicle?
battery charger
which of these do not provide extra gears on some trucks?
automatic transmission
which of these is true about tire pressure?
air pressure in tires increase with temperature
you are driving a vehicle that makes wide turns. you want to turn left from elm street onto poplar street. both are two lane streets. you should
begin turning your vehicle when you halfway through the intersection
you must drive on a slippery road. which of these is a good thing to do in such a situation?
slow down gradually
which of these statements about acceleration is true?
rough acceleration can cause mechanical damage
which of these statements about brakes is true
the heavier or the faster it is moving, the more heat the brakes have to absorb to stop it
high beams should be
used safe and legal to do so
you can see a marking on a vehicle ahead of you. the marking is a red triangle with an orange center. what does this marking mean?
it may be a slow moving vehicle
which of these is NOT part of the pre trip inspection of the engine compartment?
valve clearance
the road you are driving on becomes very slippery due to glare ice. which of these is a good thing to do in such a situation
stop driving as soon as you can safely do so
when are passing another vehicle, pedestrian, or bicycle, you should assume that
they may be moving into your traffic lane
in your mirror you see a car approaching from the rear. the next time you check your mirror you do not see the car. if you wish to change lanes, you should.
wiat to change lanes until you are sure that the car is not in your blind spot
which of these is the propel signal to change lanes?
signal early and change lanes slowly and smoothly.
you are driving in an area with few street lights. if you cannot see well with your headlights, which of the following actions may help?
use your highbeams when legal and keep your interior lights off
which of these is not required knowledge of a driver needing hazardous material endorsment?
basic chemistry
to determine blood alcohol concentration levels for a person, it is necessary to know
how much a person weighs
implied consent means:
you are giving your concent to be test for alcohol in your blood.
the engine brake effect is greater when the engine is BLANK governed RPM and transmission is on a BLANK gear
Near, lower
which of these is not a brake check you normally do during your walk around inspection?
brake adjustment
one can recognize hazardous materials by looking on the container
labels
you do not have hazardous materials endorsement in your commercial drivers license. you can drive a vehicle hauling hazardous materials when.
the vehicle does not require placards
if you have a heavy load that is slowing you down on an upgrade, you should
shift into a lower gear
the new BAC for commercial drivers to be considered intoxicated when driving a commercial vehicle
0.04
where should the ignition key be during a pretrip inspection?
in your pocket
what is not true about bad weather and driving conditions?
the road is more slipper when the rain continues than when it begins
what is true about other drivers?
short term or daily rental truck drivers are often not used to the limited vision and can pose a hazard
which of these statements about the hazards of vehicle fire is true?
poor cargo ventilation may cause cargo to catch fire
you should wear a seatbelt in a moving vehicle
all the time
controlled braking is
squeezing the brakes firmly without locking them up
which of these is true about a commercial vehicle’s habit of swinging on turns
off tracking
which of these is true about driving in a tunnel
there may be strong winds when exiting
you should use your horn
if it helps avoid a crash
the tread depth on the front steering wheel tires, should be
not less then 4/32
your vehicle will be put out of service if BLANK or more leaves in any leaf spring are missing
1/4
if your brakes fail on a downgrade, you must first
find an escape ramp in order to exit the roadway
you should always turn on your emergency four way flashers when you
park on the side of the road
to avoid an accident, you moved to the shoulder. to return to the road
using the mirrors and turn signals, turn sharply to get back to the road
which of these would NOT work if the windshield was covered with ice
brush
you are driving a 40 foot vehicle at 55 mph. the road is dry and visibility is good. what is the least amount of space that you need to have in front of your vehicle
5 seconds
what should you do if a car coming toward you at night keeps its high beams one
look to the right lane or edge marking of the road
when you are starting to move up a hill from a stop
release the parking brakes as you apply engine power
which statement about using a heater is true?
when driving in winter weather, you should check that the heater is working properly before starting your trip
why is a damaged exhaust system a danger?
poisonous fumes can enter into the cab or sleeping compartment
which of these is NOT a danger when an automatic transmission is forced into a lower gear at a high speed?
a loss of engine brake effect
stab braking should not be used on a vehicle with
Antilock brakes
perception distance is the distance your vehicle travels from the time:
the eyes see a hazard at the time the brain knows that this is a hazard
.
you are driving a vehicle that could easily be driven at 55 mph on an open road. however, traffic is heavy and other vehicles are driving at 35 mph, although the speed limit is 55. the safest speed for your vehicle is more likely to be
35 mph
which of these statements about using turn signals is true?
when turning, you should signal early
which of these statements about double clutching and shifting is true ?
you can use the tachometer to tell you when to shift
you are starting your vehicle in motion from a stop. as you apply power to the drive wheels, they start to spin. you should
take your food off the accelerator
which of these is the most important thing to remember about emergency braking
if the wheels are skidding, you cannot control your vehicle
which of these statements about tires and hot weather driving is true?
you should inspect your tires every two hours or every 100 miles when driving in hot weather
your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. which of these is a good rule to remember at such a time?
you can almost always turn to miss an obstacle more quickly then you can stop
you are driving a heavy vehicle. you must exit a highway using an off ramp that curves downhill you should.
slow down to a safe speed before the curve
you must park on the side of a level, straight, four lane divided highway. where should you place the reflective triangles?
one within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear
you are driving on a two lane road. an oncoming driver drifts into your lane and is headed straight for you. which of these is most often the best action to take
steer to the right
brake fade:
can be caused by the brakes getting too hot
as the blood alcohol concentration
judgement and self control are affected
hydroplaning:
is more likely if the tire pressure is low
if you are being tailgated, you should
increase your following distance
you do not have a hazardous material endorsement on your commercial drivers license. you are asked to deliver hazardous materials in a placard vehicle. you should
refuse to haul the load
which of these statements about staying alert to drive is true?
sleep is the only thing that can over come fatigue
your vehicle has hydraulic brakes. while traveling on a level road, you press the brake pedal and find that it goes to the floor
pumping the brake pedal may bring the pressure up so you can stop the vehicle
you are driving at 55 mph on dry pavement. about how much total stopping distance will you need to bring is to a stop
the length of a football field
