Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- Be put in the manual lock position
- Have the jaws closed
- Be free of oil and grease
- Be tilted down towards the rear of the tractor
Quote From Page 75 Of The CDL Manual:
Inspect Fifth Wheel Check for damaged/missing parts.
- Check to see that mounting to tractor is secure, no cracks in frame, etc.
- Be sure that the fifth wheel plate is greased as required. Failure to keep the fifth wheel plate lubricated could cause steering problems because of friction between the tractor and trailer.
- Check if fifth wheel is in proper position for coupling:
- Wheel tilted down towards rear of tractor.
- Jaws open.
- Safety unlocking handle in the automatic lock position.
- If you have a sliding fifth wheel, make sure it is locked.
- Make sure the trailer kingpin is not bent or broken.
- Air tank
- Steering System
- Front axle
Quote From Page 20 Of The CDL Manual:
Font of Vehicle
- Condition of front axle.
- Condition of steering system.
- No loose, worn, bent, damaged or missing parts.
- Must grab steering mechanism to test for looseness.
- Condition of windshield.
- Check for damage and clean if dirty.
- Check windshield wiper arms for proper spring tension.
- Check wiper blades for damage, "stiff" rubber and securement.
- A vertical barrier placed directly behind the cab of a tractor to protect the cab in the event cargo should shift forward.
- A strip of material that may be used to unitize articles and is tensioned and clamped or crimped back upon itself. (same as "Strapping")
- A structure, device, or another substantial article placed against an article to prevent it from tipping that may also prevent it from shifting.
- A rail along the side of a vehicle that protects the side of the vehicle from impacts.
Quote From Page 2 Of The CDL Manual:
A structure, device, or another substantial article placed against an article to prevent it from tipping that may also prevent it from shifting.
- 20 to 45 psi
- 50 to 75 psi
- 90 to 110 psi
- 0 to 25 psi
Quote From Page 73 Of The CDL Manual:
The tractor protection valve will close automatically if air pressure is low (in the range of 20 to 45 psi).
It is definitely worth memorizing the psi range the tractor protection valve will automatically close. Not only will you need to know this for the written and pre-trip exams, but you'll definitely want to know this info for real-world driving situations and when testing the air brake system.
- Cab shield.
- Rub rail.
Quote From Page 2 Of The CDL Manual:
A vertical barrier across the front of the deck of a vehicle to prevent forward movement of cargo.
- Health tag
- Hazard class and identification number
- Shipping route
- All of these answers are correct
Quote From Page 87 Of The CDL Manual:
- Sends products from one place to another by truck, rail, vessel or airplane.
- Uses the hazardous materials regulations to decide the product's:
- Proper shipping name
- Hazard class
- Identification number
- Correct packaging
- Correct label and markings
- Correct placards
- Must package, mark and label the materials, prepare shipping papers, provide emergency response information and supply placards.
- Must certify on the shipping paper that the shipment has been prepared according to the rules (unless you are pulling cargo tanks supplied by you or your employer)
Be sure to understand the different responsibilities for:
- The shipper
- The carrier
- The driver
- Manually operated air tank drains normally use a handle or a cable to drain the system
- All fluids from all air tanks drain into a central location which must be drained
- Air tank drains should be forced into the open position during dry weather so that they drain throughout the day
- Automatic air tank drains always have to be drained manually as well
Quote From Page 62 Of The CDL Manual:
Air Tank Drains - Compressed air usually has some water and compressor oil in it, which is bad for the air brake system. For example, the water can freeze in cold weather and cause brake failure. The water and oil tend to collect in the bottom of the air tank. Be sure to drain the air tanks completely. Each air tank is equipped with a drain valve in the bottom. There are two types of drain valves:
- 1. Manually operated by turning a quarter turn or by pulling a cable. You must drain the tanks yourself at the end of each day of driving.
- 2. Automatic, in which the water and oil are automatically expelled. They may be equipped for manual draining as well.
The automatic types are available with electric heating devices. These help prevent freeze-up of the automatic drain in cold weather.
- "tandems" or "front trailer tandems"
- "drives" or "drive axles"
- "duals" or "tractor set"
- "drives" or "trailer drives"
Quote From Page 0 Of The CDL Manual:
- Step on and off the brake pedal several times to reduce the air pressure in the tanks until the trailer air supply control pops out
- On double and triple trailers, the tractor protection valve will not work
- Engage and disengage the parking brake repeatedly until the trailer air supply control pops out
- Chock the wheels, release all brakes, then go to the last trailer and open the shut off valve to release as much air from the system as possible to see if the trailer air supply control pops out
Quote From Page 83 Of The CDL Manual:
Test tractor protection valve: Charge the trailer air brake system, (i.e., build up normal air pressure and push the "air supply" knob in). Shut the engine off. Step on and off the brake pedal several times to reduce the air pressure in the tanks. The trailer air supply control (also called the tractor protection valve control) should pop out (or go from "normal" to "emergency" position) when the air pressure falls into the pressure range specified by the manufacturer (usually within the range of 20 to 45 psi).
- A series of portable containers
- Bulk packaging permanently attached to a vehicle
- Removable tanks attached to a chassis
- Any of these are considered Cargo Tanks
Quote From Page 100 Of The CDL Manual:
Cargo tanks are bulk packagings permanently attached to a vehicle. Cargo tanks remain on the vehicle when you load and unload them.