Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- It can cause steering to become more sensitive to inputs
- It can decrease stopping distance
- It can create unsafe traction on the drive tires
- It can make the steering axle weight too light to steer safely
Quote From Page 52 Of The CDL Manual:
Underloaded front axles (caused by shifting weight too far to the rear) can make the steering axle weight too light to steer safely.
- Slow down by downshifting to avoid coasting
- Put the truck in the highest possible gear before slowing down
- Put the truck in neutral before using the brake pedal to slow down
- Keep the truck in gear and depress the clutch pedal before slowing down
Quote From Page 128 Of The CDL Manual:
As you approach the turn:
- Use turn signals to warn others of your turn.
- Slow down smoothly, change gears as needed to keep power, but do not coast unsafely. Unsafe coasting occurs when your vehicle is out of gear (clutch depressed or gearshift in neutral) for more than the length of your vehicle.
The examiners will check to make sure you're able to keep the truck in gear by using proper downshifting. Avoid taking the truck out of gear until absolutely necessary.
- None of these answers are correct
- Drive axles and trailer tandems
- Steer axle and trailer tandems
- Steer axle and drive axles
Quote From Page 0 Of The CDL Manual:
- At least 12 hours
- A driver will not be placed out of service unless they have a .08 BAC
- A driver will not be placed out of service unless they have a .04 BAC
- At least 24 hours
Quote From Page 8 Of The CDL Manual:
A CDL holder operating a CMV found to have any alcohol in his or her system is placed out of service for at least 24 hours.
Alcohol is taken very seriously for commercial drivers. If you have any alcohol in your system at all, you will be placed out of service and will most likely lose your job. While you will not be criminally charged for driving under the influence unless your BAC is .04 or higher, you can still lose your job for any level under that and will certainly be placed out of service. A good rule of thumb is "24 hours from bottle to throttle." In other words, don't even think about driving for 24 hours after your last drink.
- Use a tire pressure gauge on all tires
- Use a tire pressure gauge on the drive tires
- Use a tire pressure gauge on the trailer tires
- Use a tire pressure gauge on the steer tires
Quote From Page 102 Of The CDL Manual:
Make sure your tires are properly inflated. Check placarded vehicles with dual tires at the start of each trip and when ever you park. You must examine each tire at the beginning of each trip and each time the vehicle is parked. The only acceptable way to check tire pressure is to use a tire pressure gauge.
Do not drive with a tire that is leaking or flat except to the nearest safe place to repair it. Remove any overheated tire. Place it a safe distance from your vehicle. Do not drive until you correct the cause of the overheating. Remember to follow the rules about parking and attending placarded vehicles. They apply even when checking, repairing or replacing tires.
On placarded vehicles, you may not use a tire thumper to determine safe air pressure. A gauge must be used.
- Between 20 and 45 psi
- Between 50 and 75 psi
- Between 10 and 20 psi
- Between 100 and 120 psi
Quote From Page 68 Of The CDL Manual:
The spring brakes will come on when the air pressure drops into the 20 to 45 psi range
- Grade 43 High test
- Grade 100 Alloy
- Grade 70 Transport
- Grade 40 High test
Quote From Page 2 Of The CDL Manual:
- A tire blows out
- Steering malfunction
- Brake failure
- Steep drop-off next to the roadway
Quote From Page 42 Of The CDL Manual:
Vehicle emergencies occur when tires, brakes or other critical parts fail.
Understand the difference between the following:
- Traffic Hazard: Any road condition or other road user (driver, bicyclist, pedestrian) that is a possible danger.
- Traffic Emergency: When two vehicles are about to collide.
- Vehicle Emergency: When tires, brakes or other critical parts fail.
- Hub oil seals
- Pipe seals
- Drive seals
- Rim oil seals
Quote From Page 119 Of The CDL Manual:
Hub oil seals/axle seals:
Check that hub oil/grease seals and axle seals are not leaking and, if wheel has a sight glass, oil level is adequate.
When checking an axle seal, tell the examiner:
"I'm checking the axle seal to make certain it is securely mounted, not damaged, and not leaking."
If a sight glass is present, say "I'm checking the sight glass to make sure the fluid is at the proper level."
Note: Not all axle seals have a sight glass.
- Look towards the left side of the road such as the left shoulder or curb
- Look towards the right side of the road such as the right shoulder or curb
- Flash your high-beams to let the other driver know their lights are too bright
- Stare directly at the oncoming vehicle so you don't lose sight of its location
Quote From Page 34 Of The CDL Manual:
Drivers can be blinded for a short time by bright light. It takes time to recover from this blindness. Older drivers are especially bothered by glare. Most people have been temporarily blinded by camera flash units or by the high beams of an oncoming vehicle. It can take several seconds to recover from glare. Even 2 seconds of glare blindness can be dangerous. A vehicle going 55 mph will travel more than half the distance of a football field during that time. Do not look directly at bright lights when driving. Look at the right side of the road. Watch the sidelines when someone coming toward you has very bright lights.