Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- A tank filled with propane
- A tank filled with oil
- A tank carrying milk
- A tank carrying automotive gasoline
Quote From Page 84 Of The CDL Manual:
Unbaffled liquid tankers (sometimes called "smooth bore" tanks) have nothing inside to slow down the flow of the liquid. Therefore, forward-and-back surge is very strong. Unbaffled tanks are usually those that transport food products (e.g., milk). (Sanitation regulations forbid the use of baffles because of the difficulty in cleaning the inside of the tank.) Be extremely cautious (slow and careful) in driving smooth bore tanks, especially when starting and stopping.
Baffles make cleaning the inside of a tank vehicle very difficult. Since most food grade tankers have to be completely clean and sanitary before each load, it is very rare for food grade tankers to have baffles.
- General Knowledge, Passenger, Hazardous Materials
- Air Brakes, Combination Vehicles, Passenger
- Air Brakes, General Knowledge, Double/Triple trailers
- General Knowledge, Air Brakes, Combination Vehicles
Quote From Page 5 Of The CDL Manual:
Computerized Written Knowledge Exam - The computerized written knowledge exam consists of standardized multiple-choice questions. In addition, specialized exams are added if you wish to operate any of the following vehicles:
- Vehicles with air brakes (also requires a skills and road test)
- Combination vehicles
- Double or triple trailers
- Vehicles carrying hazardous materials
- Passenger-carrying vehicles
- School buses
- Tanker vehicles
For truck drivers, it's most important to be able to pass the General Knowledge, Air Brakes, and Combination Vehicles exams first. Once you are able to pass those exams, it's highly recommended you also take the Tanker, Double/Triple Trailers, Passenger, and Hazardous Materials exams.
Quote From Page 119 Of The CDL Manual:
Tires: The following items must be inspected on every tire:
- Tread depth - Check for minimum tread depth (4/32-inch on steering axle tires, 2/32-inch on all other tires).
- Tire condition - Check that tread is evenly worn and look for cuts or other damage to tread or sidewalls. Also, make sure that valve caps and stems are not missing, broken or damaged.
- Tire inflation - Check for proper inflation by using a tire gauge or by striking tires with a mallet or other similar device.
When checking a steer tire, say to the examiner:
"I'm checking the steer tire to make sure the tread is evenly worn and there are no abrasions, bulges, or cuts to tread or sidewalls. The tread must have a minimum depth of 4/32 of an inch. The tires must be properly inflated according to factory specifications. Tire inflation on steer tires must be checked with a tire gauge."
- Maintain current speed in order to avoid a rear-end collision
- During icy conditions, stop immediately to avoid loss of control
- Reduce speed by 1/2
- Reduce speed to a crawl and stop driving as soon as you can safely do so
Quote From Page 29 Of The CDL Manual:
If the surface is icy, reduce speed to a crawl and stop driving as soon as you can safely do so.
- Centrifugal Force
- Center of gravity
Quote From Page 0 Of The CDL Manual:
- Proper shipping name
- Hazardous class or division number
- The amount of "outage" the product has (if a liquid product)
- Identification number
Quote From Page 92 Of The CDL Manual:
The basic shipping description of a hazardous material on a shipping paper must include the (1) identification number (preceded by the letters UN or NA); (2) DOT proper shipping name; (3) hazardous class or division number of a product (must include subsidiary hazard class when required); and (4) packing group for a product in a roman numeric pattern (may precede with the letters PG).
While it is solely the shippers responsibility to provide you with proper shipping papers, you must be certain all shipping papers are correct before leaving their facility. If there are any issues with the paperwork along your trip (DOT inspections, etc) it will cost you time and you can possibly be ticketed.
- The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
- The maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
- 50% of the maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
- The summation of 50% of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
Quote From Page 3 Of The CDL Manual:
Aggregate Working Load Limit:
The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
- With the engine off, step on and off the brake pedal several times to reduce the air pressure in the tanks and make sure the tractor protection valve pops out
- Release all brakes except the trailer service brakes using the trailer hand control valve (trolley valve) then walk back to the rear of the trailer and visually check to be sure the brakes are engaged
- Pull out the trailer air supply control and pull gently on the trailer with the tractor to make sure the brakes work
- Check for normal air pressure, release the parking brakes, move the vehicle forward slowly, and apply trailer brakes with the hand control (trolley valve), if so equipped
Quote From Page 79 Of The CDL Manual:
The trailer service brakes: Check for normal air pressure, release the parking brakes, move the vehicle forward slowly, and apply trailer brakes with the hand control (trolley valve), if so equipped. You should feel the brakes come on. This tells you the trailer brakes are connected and working. (The trailer brakes should be tested with the hand valve but controlled in normal operation with the foot pedal, which applies air to the service brakes at all wheels.)
Many companies are no longer installing trailer hand control valves which is very unfortunate as this is really the only way to be certain the trailer service brakes are functioning properly. If your truck does not come equipped with a trailer hand control valve, test your brakes before you start driving on a major roadway. If you notice the truck struggling to stop, the problem most likely is with your trailer brakes and needs to be inspected.
- Stay off the brake and slow down very gradually
- Once stopped, visually check all tires as well as any damage flying tire debris may have cause to your vehicle
- Hold the steering wheel very firmly until you come to a complete stop
- Use the "stab braking" method
Quote From Page 44 Of The CDL Manual:
Hold the steering wheel firmly - If a front tire fails, it can twist the steering wheel out of your hand. The only way to prevent this is to keep a firm grip on the steering wheel with both hands at all times.
- Stay off the brake - It is natural to want to brake in an emergency. However, braking when a tire has failed could cause loss of control. Unless you are about to run into something, stay off the brake until the vehicle has slowed down. Then brake very gently, pull off the road and stop.
- Check the tires - After you have come to a stop, get out and check all the tires. Do this even if the vehicle seems to be handling all right. If one of your dual tires goes, the only way you may know it is by getting out and looking at the tires.
Having a tire blowout is very likely to occur during your driving career. When a blowout occurs, it's important to stay calm. Most accidents from tire blowouts occur due to drivers becoming spooked and overreacting. Stay calm and don't make any sudden or erratic movements. After the initial blowout, do not use your brakes. Allow the vehicle to slow down very gradually and once you're sure you have full control of the vehicle, start using gentle brake pressure and find a safe location to pull over.
Never go into the roadway to remove tire debris. If the debris is causing a traffic hazard, notify authorities about the situation and warn other truckers by using a CB Radio, if equipped..
- For approximately 30 seconds after re-entering traffic flow
- Once you are in the traffic lane and up to highway speeds
- Before rolling forward to re-enter the traffic flow
- After you have re-entered the traffic lane
Quote From Page 129 Of The CDL Manual:
When instructed to resume:
- Check traffic and mirrors thoroughly in all directions.
- Turn off the four-way flashers.
- Activate the left turn signal.
- When traffic permits, release the parking brake and pull straight ahead.
- Do not turn the wheel before your vehicle moves.
- Check traffic from all directions, especially to the left.
- Steer and accelerate smoothly into the proper lane when safe to do so.
- Once your vehicle is back into the flow of traffic, cancel the left turn signal.
Before you begin moving forward, you should activate the left turn signal so other motorists know you're getting ready to re-enter the traffic lane.