Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- 80,000 pounds
- 34,000 pounds
- 20,000 pounds
- 100,000 pounds
Quote From Page 10 Of The CDL Manual:
The maximum weight limits on both designated and non-designated streets and highways are:
- 20,000 pounds on a single axle.
- 34,000 pounds on a tandem, and
- Up to 80,000 pounds of total weight on a 5-axle combination, depending upon axle spacing.
- 20,000 pounds on a single axle
- 34,000 pounds on a tandem
- 80,000 pounds on a 5-axle combination, depending upon axle spacings.
A "tandem" is a reference for a pair of axles. For example, the rear 2 axles on a tractor and the rear two axles on the trailer are considered tandems. So a single axle (such as the front axle) can have a maximum of 20,000 pounds. A tandem (two axles in close proximity) may have 34,000 pounds. But the entire weight of the vehicle can not exceed 80,000 pounds.
- When the surge hits the end of the tank, it tends to push the truck in the opposite direction the wave is moving
- If the truck is on a slippery surface such as ice, the wave can shove a stopped truck out into an intersection
- When coming to a stop, the liquid will surge back and forth
- Results from movement of the liquid in partially filled tanks
Quote From Page 84 Of The CDL Manual:
Liquid surge results from movement of the liquid in partially filled tanks. This movement can have bad effects on handling. For example, when coming to a stop, the liquid will surge back and forth. When the wave hits the end of the tank, it tends to push the truck in the direction the wave is moving. If the truck is on a slippery surface such as ice, the wave can shove a stopped truck out into an intersection. The driver of a liquid tanker must be very familiar with the handling of the vehicle.
- You should never assist the injured until authorities have arrived
- Assist the injured immediately
- Assist the injured only after you have protected the area and notified authorities
- Assist the injured after you have protected the area, but before you have notified authorities
Quote From Page 45 Of The CDL Manual:
If a qualified person is at the accident and helping the injured, stay out of the way unless asked to assist. Otherwise, do the best you can to help any injured parties:
- Do not move a severely injured person unless the danger of fire or passing traffic makes it necessary.
- Stop heavy bleeding by applying direct pressure to the wound.
- Keep the injured person warm.
If you are the first one on the scene of a serious accident, you may want to help the injured right away. But make sure you secure the scene of the accident first to avoid any additional collisions. You should then notify the authorities before attempting to assist an injured person. Make sure you memorize the order of recommended accident procedures:
1. Protect the area
2. Notify authorities
3. Assist the injured
- Driving too fast for conditions
- Cargo loaded so not enough weight is on the front axle
- Too much tread on the front tires
- All of these are reasons for front-wheel skids
Quote From Page 44 Of The CDL Manual:
Front-Wheel Skids - Most front-wheel skids are caused by driving too fast for conditions. Other causes are lack of tread on the front tires, and cargo loaded so not enough weight is on the front axle. In a front-wheel skid, the front end tends to go in a straight line regardless of how much you turn the steering wheel. On a very slippery surface, you may not be able to steer around a curve or turn.
When a front-wheel skid occurs, the only way to stop the skid is to let the vehicle slow down. Stop turning and/or braking so hard. Slow down as quickly as possible without skidding.
- A lever which only controls the tractor service brakes
- A valve used to release the air lines from the tractor to the trailer
- The trailer release mechanism
- A lever which only controls the trailer service brakes
Quote From Page 73 Of The CDL Manual:
The trailer hand valve (also called the "trolley valve" or "Johnson bar") works the trailer brakes. The trailer hand valve should be used only to test the trailer brakes. Do not use it in driving because of the danger of making the trailer skid. The foot brake sends air to all the brakes on the vehicle (including the trailer(s'). There is much less danger of causing a skid or jackknife when using just the foot brake.
Never use the hand valve for parking because all the air might leak out, unlocking the brakes (in trailers that do not have spring brakes.) Always use the parking brakes when parking. If the trailer does not have spring brakes, use wheel chocks to keep the trailer from moving.
- Hazardous garbage
- Hazardous disposable product
Quote From Page 93 Of The CDL Manual:
The shipper of hazardous wastes must put the word WASTE before the proper shipping name of the material on the shipping paper (hazardous waste manifest). Example: UN1090, Waste Acetone, 3, PG II
- None of these affect the gross vehicle weight at all
- Moving the cargo toward the front or rear of the trailer
- The position of the tractor's 5th wheel
- The position of the trailer's tandems
Quote From Page 0 Of The CDL Manual:
- Bring the truck to approximately 20mph then apply the parking and emergency brakes to see if they are effective in stopping the truck
- Apply the parking brake only and make sure it will hold the vehicle by shifting into a low gear and gently pulling against the brake
- Move forward in the lowest possible gear at idle speed, then apply the emergency brake and make sure you come to a full stop
- If the truck is equipped with a trailer hand valve, apply full pressure to the trailer service brakes then gently tug against the brakes in a low gear to be sure the brakes are functioning properly
Quote From Page 117 Of The CDL Manual:
Parking brake check: Apply parking brake only and make sure it will hold the vehicle by shifting into a lower gear and gently pulling against the brake.
To properly perform a parking break check, you must start the truck and build air to 120 to 125 psi. Place the transmission into a low gear. Release the yellow tractor park brake valve and do a light "tug" to be certain the trailer brakes hold the truck from rolling. Then, reverse the brake valves (set the tractor brakes and release the trailer brakes). Do a light tug again. The tractor brake should keep the truck from rolling. Here's what to say to the examiner:
"I will now perform a parking break check. I have a fully charged system and will check the trailer parking brakes first. [Do your trailer tug test here.] Now, I will check the tractor parking brakes. [Reverse the brakes and do your tractor tug test here.] Both the trailer parking brakes as well as the tractor parking brakes are functioning normally."
- Described first
- All of these answers are correct
- Highlighted in a contrasting color
- Identified by an "X" placed before the shipping name in a column captioned "HM"
Quote From Page 92 Of The CDL Manual:
If a shipping paper describes both hazardous and non-hazardous products, the hazardous materials will either be:
- Described first
- Highlighted in a contrasting color
- Identified by an "X" placed before the shipping name in a column captioned "HM." The letters "RQ" may be used instead of "X" if a reportable quantity is present in one package.
Which log below contains at least one violation?
- Day 2
- Day 1
- Both day 1 and day 2
- There are no violations in this example
Quote From Page 0 Of The CDL Manual:
Violations: There is a 30 minute break violation in this example from 6:00 p.m. - 10:00 p.m and 11:00 p.m. to Midnight on Day 1.
Explanation - 11 Hour Limit: On Day 1, the driver drove from 11:00 a.m. to 4:00 p.m. (5 hours) then again from 6:00 p.m. to 10:00 p.m. (4 hours) and finally from 11:00 p.m. to Midnight (1 hour). Therefore, the driver drove for a total of 10 hours on Day 1 (5 + 4 + 1) and never violated the 11 hour limit. On Day 2, the driver only drove between the hours of 10:00 a.m. and 2:00 p.m. for a total of 4 hours, thus, no violation of the 11 hour limit occurred.
Explanation - 30 Minute Break: On Day 1, the calculation point for the 30 minute break provision is 10:00 a.m. In order to continue driving beyond 6:00 p.m. (8 hours after the initial starting calculation point) a 30 minute break off duty must be taken. Since the driver never took a break off duty, a 30 minute break violation occurred between the hours of 6:00 p.m. and 10:00 p.m. The driver then went on duty between the hours of 10:00 p.m. and 11:00 p.m., before violating the 30 minute break provision again by driving a CMV between 11:00 p.m. and Midnight. In order to remain legal, the driver should have taken his/her 30 minute break by 6:00 p.m. On Day 2, the driver was only on duty for a total of 7 consecutive hours which would not require a 30 minute break.
Explanation - 14 Hour Limit: After taking 10 consecutive hours off duty, the driver had 14 hours available beginning at 10:00 a.m. on Day 1. The driver switched into the sleeper berth at Midnight, exactly 14 hours later. Since the driver remained in the sleeper for 10 consecutive hours, the 14 hour limit reset and the new starting calculation point was then 10:00 a.m. on Day 2. The driver only remained on duty from the hours of 10:00 a.m. until 5:00 p.m. for a total of 7 hours of on duty time on Day 2. The driver remined legal on both days and no violation occurred.