General Knowledge: Flashcards
- Retarders can cause the drive wheels to?
skid in poor traction conditions.
- The distance you should look ahead while driving is 12-15 seconds or =
C. about a 1/4 mile
- The purpose of the retarder =
B. Help slow the vehicle while driving to reduce brake wear.
- When an emergency requires that you park on the side of a level, straight, 2-lane road, where should you place the reflective triangles?
B. One at 10’ of rear, one at 100’ of rear, and one and 100’ to front.
- You must park on the side of a level straight 4-lane divided highway due to an emergency, where do you put your triangles?
A. One within 10’ of rear, one to 100’ of rear, and one to 200’ of rear.
- You need ___x as much stopping distance at 40mph as to 20mph?
C. 4x
- 1.On a wet road you reduce speed to ______?
- On packed snow you reduce your speed to ______?
- On Ice you should________?
- Wet reduce 1/3rd
- Snow reduce 1/2
- Ice get off road, wait till safe, use chains.
- Driving at 55mph on dry pavement, takes about _________ feet total stopping distance?
D. 419’ (+ 32 brake lag distance = 451’ total)
How many seconds of stopping distance do you need per foot of vehicle length below 40 mph?
1 second for every 10’ of vehicle.
How many seconds of stopping distance do you need per foot of vehicle length above 40 mph?
1 second for every 10’ of vehicle. + 1 additional second (when over 40mph)
You can see a marking on a vehicle ahead of you. The marking is a red triangle with an orange center, what does the marking mean?
= SLOW MOVING VEHICLE
Stab braking should not be used on vehicles?
= EQUIPPED WITH ABS BRAKES.
(Stab-braking= applying brake pedal until your wheels lock up, then letting off and re-applying when unlocking up, repeat)
On which fires can you use the A:B:C: fire extinguisher?
- Cloth fires
- Electrical fires
- Liquid fires
At start of trip, you should check cargo =
after first 50 miles, then every 2 hours or 100 miles.
When to down shift? =
before starting down a hill, before entering a curve. Accelerate slightly into curve for control
check your mirrors quickly on highway every=
5-8 seconds, and more frequently in city or heavy traffic.
Proper downgrade braking is =
setting your safe speed, gently apply brakes until 5mph below safe speed, release brakes, repeat.
Controlled braking =
apply brakes hard until right before wheels lock up and repeat
How to fix a Drive-wheel skid/braking skid=
release brakes, steer into skid, counter-steer
How to fix a Front Wheel skid=
release brakes, let vehicle slow down
When driving in hot weather check your tires every?
2 hour or every 100 miles or whatever comes first.
If you leave the road, try to stop before?
coming back on the highway
If you leave the road and cannot stop before returning to the road surface, avoid braking until your speed is below?
20 mph
If the truck goes into a front wheel skid it will go straight ahead even if the?
steering wheel is turned
