All Flashcards
How far away from a fire should you stand with extinguisher?
As far back as possible
What safety feature must bathroom busses have installed?
An emergency buzzer
True or false: highway speed may not be safe for Commercial vehicles?
True
How far is to far for slack adjusters to move?
The slack adjusters shouldn’t move more than 1 inch
What is the correct response if air brakes break?
Stop vehicles and have them fixed
What is engine oil useful for?
Keeping engine cool and lubricated
How deep should treads be on front tires?
4/32 inch
What could it mean if there is rust around the nuts on your wheels?
it may mean the nuts are too loose
Where are the convex mirrors in relation to the flat mirrors
Convex mirrors are below the flat mirrors
What are things busses cannot carry?
irritating materials and hazardous
When empty trailers are more likely too?
Swing
How quickly should engine oil reach normal level?
within a few seconds
If valve releases pressure on air brakes it means…
something is wrong. It should not release pressure.
What brakes shouldn’t you use when roads are slippery?
Engine brakes
you should not refuel when…
- passengers are on board
- windows are open
on a down grade how do you keep from rolling backwards?
Apply parking brake
What lights should you activate at railroad crossing?
4-way lights
When is appropriate to use strobe light?
Only in limited visibility
What psi is the safety valve set too?
150 psi
If you have to stop bus do to behavioral issue what is the proper response?
Talk with student and move them closer to driver seat
What does overload not effect?
The exhaust system
how many feet behind the vehicle do you put safety cones for a one way?
10, 100, 200 feet
What is the safest speed?
The speed of traffic. (not posted limit, or slower)
What is most important space around bus?
The front/ ahead
What lights do you use pulled off to side of road?
4-way emergency lights
When should you use high-beams?
When it is safe and legal
What roads are most slippery?
Wet icy roads
What does shifting gears correctly help you do?
Helps maintain control of vehicle
When can you discharge a disruptive rider?
At the next stop
What situation makes more work for the brakes?
Heavier load
What does blocking do?
It keeps cargo from sliding
what percentage of leaf springs are missing before you have to get it fixed?
25%
what are Glad hands?
coupling devices
When are wheels more likely to lock up?
When the vehicle is light
What should you do when being tailgated?
Increase follow distance
What might happen to you vehicle on a steep railroad crossing?
vehicle might hangup
What is another name for Front end header?
A headache board.
What side will the ABS malfunction light most likely be on?
The left
What is the first step to take at a accident?
Make sure another accident doesn’t happen
What is Gross Vehicle Weight Rating (GVWR)?
it is the value specified by the manufacturer as the weight
How long do you have to notify employer of any conviction?
30 days
What should you do on downgrades?
Downshift
What shouldn’t you do if tire fails?
Hit the breaks
What happens to road tar in the heat?
it rises to surface
When should you turn the retarder off?
When roads are slippery
True or false convex mirrors show wider area than flat mirror?
True (doesn’t necessarily make things bigger or closer though)
When a trailer skids you should…
release brakes to regain control
Where can reproved tires not be used?
Front of bus
When can’t you use parking brake?
when it is too hot
How should you test steering?
Grip and check for looseness
Having someone to help back up?
is not required by law
What should you do in an engine fire?
turn off engine asap
Busses cannot carry more than how many pounds of hazardous materials?
500
When discharging a disruptive rider what must you do?
Ensure their safety
Should you speed up if you are tailgated?
No
How do you prevent your vehicle from rolling back?
Engage clutch and take foot off brake
What is the minimum amount of mirrors?
2
If you hear a bang that sounds like a tire blowout?
assume your tire blew out
What shouldnt you do if you are being tailgated?
Turn on taillights
Removing the radiator cap is usually safe?
False
What is the front end header for?
Protecting cargo
When does the spring brake come on?
When main pressure is lost
How big of cracks in brake drum make it unsafe to drive?
1/2
Maximum leaks in air pressure?
3 for single 4 in double
What are the two marking on front brake limiting valve?
Normal and slippery
Air system is fully charged at what psi?
125
What will happen if air brake air doesn’t flow all the way back?
Brakes won’t work properly
How do you supply air to trailer brake system?
Push in trailer air supply knob
How do you apply parking brakes?
Pull knob out
How often should you check tires in hot weather?
Every 2 hours or 100 miles
What holds back spring brakes?
Air pressure
What year did they require ABS on trucks and busses?
1998
If the wheels on trailer begin to lock what will it cause?
It will be more likely to swing
Which brake should you use on downgrade?
Engine brake
Which wheels use foundation brakes?
All the wheels us foundation brakes
You should release pressure when tires get very hot?
False
What do air supply pressure gauges do?
Tell you how much air pressure is in the air tanks
How do you check the spring brakes?
Continue stepping on and off the brake to check
What is axle weight?
It is the weight transmitted to the ground one or one set of axles
What are the parking and emergency brake held on by?
Spring pressure
Are warning always poster on low bridges or underpasses?
Usually but not always
