Review Questions - Click On The Picture To Begin...
These Questions Come From The Illinois CDL Manual
- None of these answers are correct
- Spending 8 consecutive hours in a sleeper berth
- Spending 8 consecutive hours either in a sleeper berth or off duty
- Spending 8 consecutive hours off duty
Quote From Page 0 Of The Illinois CDL Manual:
2. Eight hours of sleeper berth time:
You may also use the sleeper berth to extend the 14 hour limit. Any period in the sleeper berth of at least 8 consecutive hours will not count as part of the 14 hours, and therefore, would allow you to extend the time during which you could use your maximum 11 hours of driving.
Remember, in order to extend the 14 hour limit, all 8 hours must be logged as sleeper berth time. You can't spend the 8 hours off duty or switch back and forth between sleeper berth and off duty time.
In most cases, it makes more sense to simply stay in the sleeper berth for 2 more hours (total of 10 consecutive hours in the sleeper berth). That way, instead of extending the 14 hour limit, you create an entirely new starting point for the 14 hour limit and will have all 14 hours available again.
- When the trailer is fully loaded to maximum weight
- When the trailer is loaded to half of its maximum weight
- All trailers, regardless of weight or cargo placement, have an equal chance of jackknifing
- When the trailer is empty
Quote From Page 71 Of The Illinois CDL Manual:
When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when the trailer is empty or lightly loaded. This type of jackknife is often called a "trailer jackknife"
- Mirrors and mirror brackets should be mounted with loose fittings
- All door seals should be intact
- Doors on the tractor should open and close properly from the outside
- Door hinges should be secure
Quote From Page 119 Of The Illinois CDL Manual:
- Check that doors are not damaged and that they open and close properly from the outside. Hinges should be secure with seals intact.
- Check that mirrors and mirror brackets are not damaged and are mounted securely with no loose fittings.
When checking a door during your pre-trip exam, you should physically open and close the door, checking all necessary items. While demonstrating, you should say:
"The door opens and closes properly, hinges are secure, not cracked, bent, or broken and the door seal is present, not torn, or damaged."
What violation has occurred at 10:00 a.m. on Day 2?
- There is an 11 hour rule violation
- There is a 30 minute break violation
- There is a 14 hour rule violation
- There is no violation at 10:00 a.m.
Quote From Page 0 Of The Illinois CDL Manual:
Violations: There is an 11 hour rule violation from 12:30 p.m. - 1:00 p.m., and a 14 hour rule violation from noon - 1:00 p.m., both on Day 2.
Explanation - 11 Hour Limit: After 10 consecutive hours off duty, the driver had 11 hours of driving time available at 10:00 a.m. After 7 1/2 hours of driving (3 + 2 1/2 + 2), the driver entered the sleeper berth for 2 consecutive hours, making him or her eligible for the split sleeper berth provision. The driver accumulated at least 10 hours of rest using a combination of at least 8 (but less than 10) consecutive hours in a sleeper berth and another break of at least 2 (but less than 10) consecutive hours. This moves the calculation point to the end of the first of the two qualifying periods of rest, or 10:00 p.m. on Day 1. The next 11 hour calculation starts there, and the driver reached the 11 hour driving limit at 12:30 p.m. on Day 2 but still continued to drive for another 1/2 hour.
Explanation - 30 Minute Break: On both Day 1 and Day 2, the driver never spent more than 8 consecutive hours on duty or driving and therefore, no violation occurred on either day.
Explanation - 14 Hour Limit: Calculation of the 14 hour limit begins at 10:00 a.m. on Day 1. At midnight on Day 1, the driver still had 9 hours remaining because any sleeper berth period of at least 8 but less than 10 consecutive hours is excluded from the 14 hour calculation. By 4:00 a.m. on Day 2, the driver had 5 hours remaining (14 - 3 - 2 1/2 - 1 1/2 - 2 = 5). The driver then took a break of at least 2 consecutive hours, making him or her eligible for the split sleeper berth provision. This moves the calculation point to the end of the first of the two qualifying periods of rest, or 10:00 p.m. on Day 1. The next 14 hour calculation starts there, and the driver reached the end of the 14 hour duty period at noon on Day 2 and drove for 1 hour over the 14 hour limit.
- The distance your vehicle travels from the time your eyes see a hazard until your brain recognizes it
- The distance traveled from the time your brain tells your foot to move from the accelerator until your foot is actually pushing the brake pedal
- The distance it takes to stop once the brakes are applied
- None of these accurately describe Braking Distance
Quote From Page 29 Of The Illinois CDL Manual:
Braking Distance is the distance it takes to stop once the brakes are applied. At 55 mph on dry pavement with good brakes, it can take a heavy vehicle about 170 feet and about 4 1/2 seconds to stop
Make sure you memorize the definition of braking distance as this will likely show up on your written exam. You should also memorize braking time as well.
- The placement of the lightest trailer doesn't matter
- Be the first trailer
- Be the middle trailer
- Be the last trailer
Quote From Page 80 Of The Illinois CDL Manual:
For the safest handling on the road, the more heavily loaded semi-trailer should be in first position behind the tractor. The lighter trailer should be in the rear.
- Effective Braking Distance
- Brake Lag Distance
- Reaction Distance
- Applied Friction Distance
Quote From Page 68 Of The Illinois CDL Manual:
With air brakes, there is an added delay - the time required for the brakes to work after the brake pedal is pushed. With hydraulic brakes (used on cars and light/medium trucks), the brakes work instantly. However, with air brakes, it takes a little time (one-half second or more) for the air to flow through the lines to the brakes. Thus, the total stopping distance for vehicles with air brake systems is made up of four different factors:
+ Reaction Distance
+ Brake Lag Distance
+ Effective Braking Distance
= Total Stopping Distance
Be certain you have the stopping distance formula memorized as it will almost definitely show up on your written exam.
- Look towards the right side of the road such as the right shoulder or curb
- Look towards the left side of the road such as the left shoulder or curb
- Stare directly at the oncoming vehicle so you don't lose sight of its location
- Flash your high-beams to let the other driver know their lights are too bright
Quote From Page 34 Of The Illinois 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.
- Use a tire pressure gauge on the drive tires
- Use a tire pressure gauge on the trailer tires
- Use a tire pressure gauge on all tires
- Use a tire pressure gauge on the steer tires
Quote From Page 102 Of The Illinois 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.
- The position of the tractor's 5th wheel
- Moving the cargo toward the front or rear of the trailer
- The position of the trailer's tandems
- None of these affect the gross vehicle weight at all