Knowledge Flashcards
If you are not sure how to put out hazoardous materials fire, you should..
wait for qualified fire fighters
which one of these items is NOT checked in a pre-trip inspection?
Fuel level
Which one of these statements is NOT true about backing a heavy vehicle?
you should back slowliy until you slightly bump into the dock
if you need to leave the road in a traffic emergency you should…
Avoid braking until yout speed has dropped about 20mph
When hydralic brakes fail, the system wont build up pressure and the brake pedal will feel spongy or go to the floor. What action should you take?
bump the brake pedal to generate pressure
CDL medical certificates must be renewed every:
2 years
Which of this statement is true about brakes?
Brakes absorb more heat to stop heavier vehicles
You are driving in heavy traffic at 35mph. The Speed Limit is 55mph. the safest speed of your vehicle is?
35 mph
Which one of these happens when a tire blows out at at highway speeds?
A Vibrating feeling
Which one of theses statements is correct about emergency or evasive action?
To turn quickly, you must have a firm grim on the steering wheel
Controlled braking:
Is used to keep the vehicle in a straight line when braking
Which of these lights cannot be cheked at the same time?
Turn Signals, brake lights and 4-way flashers
Yoiu are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the while driving on an uphill grade. Which one of theses is a good rule to follow when pulling the vehicle back in motion?
use the parking brake to hold the vehicle until the clutch engages
Merging onto roads is safest if you:
Wait for a large enough gap in traffic to enter the road
Whic of these statements is true about rear drive wheel braking skids?
Trailers can push the towing vehicles sideways
How does vehicle weight affect stopping distance?
Empty trucks can take longer to stop than loaded trucks
After Starting the Engine the
Coolant temperature gauge should begin a gradual rise to normal
When driving through roadway work zones, you should
watch for sharp pavement drop-offs
Which one of these systems should receive extra attention during winter weather inspection?
Exhaust
Which statement is true?
Many heavy vehicles collisions occur between midnight and 6:00am
Which one of these statements is true about causes of vehicle fires?
poor trailer can cause flamable cargo to catch on fire
Which one of these statements is true about bad weather driving conditions?
when temperature drops bridges will freeze before roads
How far should a driver look ahead of the vehicle while driving?
12-15 Seconds
when the roads are slippery you should:
Make turns as carefull as possible
You are driving on a straight, level highway at 50mph with no vehivles in front of you. Suddently a tire blows out on you vehicle. What should you do first?
stay off the brake until the vehicle slows down
what should you do when you vehicle hydroplanes?
release the accelerator
Which of these statements is true abot double-clutching and shifting?
you can use the tachometer to tell you when to shift
Which of these is especially true about you tires in hot weather?
you should check tire mountng and air pressure before driving
What 3 things add up to the total stopping distance for your truck or bus?
Perception Distance, reaction distance, braking distance
Where must you keep shiping papers when transporting hazardous materials?
In a pouch on the drivers door or on the seat
which one of these is true about driving in tunnels?
There may be strong winds when exiting
Which one of these is true regarding the use of drugs while driving?
Prescription drugs are allowed if a doctor says the drugs will not affect safe driving ability
Truck Escape Ramps:
Hel avoid damage to vehicles
You are cecking your steering and exhaust system in a pre-trip inspection, which one of these probles, should be fixed before the vehivle is driven?
steering wheel play of more than 10% (2 inches in a 20-inch steering wheel)
You should use your mirrors to check:
Where the rear of your vehivle is while you make turns
Which of these is NOT a good rule to follow when caring for an injured person at an accident scene?
keep injured persons cool
Whic one of these statements is true about warning other drivers of a stopped vehicle?
Move the rear reflective triangle back if the driver’s vision is obscured within 500 feet