Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- Weigh the truck, then drive exactly 100 miles, and then re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
- Weigh the truck immediately after fueling, then run exactly 100 miles, and then re-weigh the truck to see what percentage of the added weight came off the steer axles.
- Weigh the truck, then immediately fuel up, and then immediately re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
- Weigh the truck after running 100 miles, then immediately fuel up, and then re-weigh the truck to see what percentage of the added weight went to the steer axle, and what percentage went to the drive axles.
Quote From Page 0 Of The CDL Manual:
- Primary Line and Secondary Line
- Service Line and Emergency Line
- Parent Line and Child Line
- Red Line and Blue Line
Quote From Page 73 Of The CDL Manual:
Every combination vehicle has two air lines: the service line and the emergency line. They run between each vehicle (tractor to trailer, trailer to dolly, dolly to second trailer, etc.).
Be sure you understand the difference between the Service Air Line and the Emergency Air Line.
- The Service Air Line controls the service brakes when you use the brake pedal.
- The Emergency Air Line supplies air to the trailer air tanks and the emergency brakes.
- Within 10 feet
- Within 25 feet
- Within 50 feet
- Within 75 feet
Quote From Page 101 Of The CDL Manual:
Do not smoke within 25 feet of a placarded cargo tank used for Class 3 (flammable liquids) or Division 2.1 (gases). Also, do not smoke or carry a lighted cigarette, cigar or pipe within 25 feet of any vehicle that contains:
- Class 1 explosives
- Class 2.1 flammable gas
- Class 3 flammable liquids
- Class 4.1 flammable solids
- Class 4.2 spontaneously combustible
- Class 5 oxidizers
The cab of the truck, both inside and out, is considered part of the placarded vehicle, so no smoking is allowed by the driver of the vehicle while in the cab.
- Go under the trailer and look into the back of the fifth wheel to be sure the trailer king pin is properly secured in the fifth wheel locking jaws
- Be sure the safety latch is in position over the locking lever
- Check to make sure there is about 3 to 6 inches of space between the fifth wheel plate and the trailer
- Raise the trailer landing gear slightly off the ground and pull the tractor gently forward with the trailer brakes set to be sure you are connected
Quote From Page 75 Of The CDL Manual:
Check Connection For Security
- Raise trailer landing gear slightly off ground.
- Pull tractor gently forward while trailer brakes are still locked to check that the trailer is locked onto the tractor.
- Put transmission in neutral.
- Put parking brakes on.
- Shut off engine and take key with you so someone else will not move truck while you are under it
- Use a flashlight if necessary.
- Make sure there is no space between upper and lower fifth wheel. If there is space, something is wrong (kingpin may be on top of closed fifth wheel jaws; trailer would come loose very easily).
- Go under trailer and look into the back of the fifth wheel. Make sure the fifth wheel jaws have closed around the shank of the kingpin.
- Check that locking lever is in the "lock" position.
- Check that safety latch is in position over locking lever. (On some fifth wheels, the latch must be put in place by hand.)
- If the coupling is not right, do not drive the coupled unit; get it repaired
- Stay on the shoulder until your vehicle has come to a complete stop
- Brake as hard as you can to stop as quickly as possible
- Keep one set of wheels on the pavement if possible
- Avoid braking until your speed has dropped to about 20mph
Quote From Page 42 Of The CDL Manual:
Leaving the road: In some emergencies, you may have to drive off the road. It may be less risky than facing a collision with another vehicle. Most shoulders are strong enough to support the weight of a large vehicle and, therefore, offer an available escape route. Following are guidelines if you must leave the road:
- Avoid braking - If possible, avoid using the brakes until your speed has dropped to about 20 mph. Then brake very gently to avoid skidding on a loose surface.
- Keep one set of wheels on pavement if possible - This helps to maintain control of the vehicle.
- Stay on the shoulder - If the shoulder is clear, stay on it until your vehicle has come to a complete stop. Signal and check your mirrors before pulling back onto the road.
- Intermodal container.
- Hook-lift container.
- Container chassis vehicle.
Quote From Page 2 Of The CDL Manual:
A reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.
- No more than 5 psi
- No more than 4 psi
- No more than 6 psi
- No more than 3 psi
Quote From Page 117 Of The CDL Manual:
With the engine running, build the air pressure to governed cut-out (100-125 psi). Shut off the engine, turn the electrical power on, chock your wheels, if necessary, release the tractor protection valve and parking brake (push in), fully apply the foot brake and hold it for one minute. Check the air gauge to see if the air pressure drops more than 3 pounds in 1 minute (single vehicle) or 4 pounds in 1 minute (combination vehicle) with brake applied. When brake is unapplied, air pressure drops more than 2 pounds in 1 minute with a single vehicle and 3 pounds in 1 minute in a combination vehicle.
Be sure to memorize how much air loss is acceptable when the service brakes are applied and not applied.
- Use your senses to check for problems (look, listen, smell, feel)
- All of these should be checked during a trip
- Check critical items when you stop
- Watch gauges for signs of trouble
Quote From Page 13 Of The CDL Manual:
Trip Inspection For safety you should:
- Watch gauges for signs of trouble.
- Use your senses to check for problems (look, listen, smell, feel).
- Check critical items when you stop:
- Tires, wheels and rims
- Lights and reflectors
- Brake and electrical connections to trailer
- Trailer coupling devices
- Cargo securement devices
- Prior to transportation, checks that the shipper correctly described, marked, labeled and otherwise prepared the shipment for transportation
- Package, mark, and label the materials
- Report accidents and incidents involving hazardous materials to the proper government agency
- Refuse improper shipments
Quote From Page 87 Of The CDL Manual:
- Takes the shipment from the shipper to its destination.
- Prior to transportation, checks that the shipper correctly described, marked, labeled and otherwise prepared the shipment for transportation.
- Refuses improper shipments.
- Reports accidents and incidents involving hazardous materials to the proper government agency
Be sure to understand the different responsibilities for:
- The shipper
- The carrier
- The driver
- All of these answers are correct
Quote From Page 20 Of The CDL Manual:
Air lines and electrical wiring - secured against snagging, rubbing, wearing.