Review Questions - Click On The Picture To Begin...
These Questions Are From The Illinois CDL Manual
- Depress the clutch pedal and coast through the turn
- Slow down before entering the curve as to avoid braking or shifting during the curve
- Continue to slow down throughout the entire duration of the curve
- Continue slowing down during the curve, and downshift about half way through the curve
Quote From Page 130 Of The CDL Manual:
When approaching a curve:
- Check traffic thoroughly in all directions.
- Before entering the curve, reduce speed so further braking or shifting is not required in the curve.
- Keep vehicle in the lane.
- Continue checking traffic in all directions.
Always slow down and get into the correct gear before the curve and never shift during the curve. It's better to slow down too much than not enough.
- Open the passenger door to listen for oncoming trains, but do not stop
- Ignore all railroad crossing procedures
- Slow down and carefully check for other vehicles
- Buses are required to stop at all railroad crossings, including those marked exempt or abandoned
Quote From Page 57 Of The CDL Manual:
You do not have to stop, but you must slow down and carefully check for other vehicles:
- At street car crossings.
- At railroad tracks used only for industrial switching within a business district.
- Where a policeman or flagman is directing traffic.
- If a traffic signal shows green.
- At crossings marked "exempt" or "abandoned."
These same rules about railroad crossings apply for hazardous material loads as well.
- Perception Distance, Braking Distance, Pressure Distance
- Reaction Distance, Skid Distance, and Friction Distance
- Braking Distance, Forward Momentum Distance, and Friction Resistance
- Perception Distance, Reaction Distance, and Braking Distance
Quote From Page 29 Of The CDL Manual:
Three things add up to total stopping distance:
+ Reaction Distance
+ Braking Distance
= Total Stopping Distance
This formula will almost definitely show up on your written exam so it's extremely important to not only memorize the formula, but memorize what each definition means:
- Perception distance is the distance your vehicle travels from the time your eyes see a hazard until your brain recognizes it. The perception time for an alert driver is about 3/4 second. At 55 mph, you travel 60 feet in 3/4 second.
- Reaction distance is 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 average driver has a reaction time of 3/4 second. This accounts for an additional 60 feet traveled at 55 mph.
- 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.
- Total stopping distance - At 55 mph it will take about 6 seconds to stop and your vehicle will travel the distance of a football field (60 + 60 + 170 = 290 feet).
- 21,300 lbs.
- 10,650 lbs
- 21,000 lbs
- 42,600 lbs
Quote From Page 2 Of The CDL Manual:
- Around 125 psi
- Around 150 psi
- Around 75 psi
- Around 100 psi
Quote From Page 62 Of The CDL Manual:
When air tank pressure rises to the "cut-out" level (around 125 pounds per square inch, or "psi"), the governor stops the compressor from pumping air.
Be sure to understand that the air compressor governor has one main purpose and that is to tell the air compressor when to pump air and when to stop pumping air. The air compressor governor will tell the air compressor to start supplying air (cut in) and when to stop supplying air (cut out).
- Cut in air pressure is usually when air pressure falls to about 100 psi.
- Cut out air pressure is usually when air pressure raises to about 125 psi
- You will put more weight on the steer axle and take weight off the tractor's drive axles
- You will take weight off the tractor's drive axles and put more weight on the steer axle
- You will put more weight on the trailer tandems and take weight off the tractor's drive axles
- You will put less weight on the trailer tandems and put more weight on the tractor's drive axles
Quote From Page 0 Of The CDL Manual:
- Alternately flashing amber lights indicator, if equipped
- Alternately flashing red lights indicator
- All of these are correct
- Strobe light indicator, if equipped
Quote From Page 120 Of The CDL Manual:
Lighting indicators: In addition to checking the lighting indicators listed in Section 10.2, school bus drivers also must check the following lighting indicators (internal panel lights):
- Alternately flashing amber lights indicator, if equipped.
- Alternately flashing red lights indicator.
- Strobe light indicator, if equipped.
- More than 300 feet
- More than 250 feet
- More than 550 feet
- More than 400 feet
Quote From Page 68 Of The CDL Manual:
The air brake lag distance at 55 mph on dry pavement adds about 32 feet. Therefore, for an average driver traveling 55 mph under good traction and brake conditions, the total stopping distance is more than 300 feet. This is longer than a football field.
Brake lag distance isn't only something you'll see in a CDL manual or training course. This is a real issue and one of the biggest downfalls to an air brake system.
- Understand that the posted speed for a curve may be too fast for a tank vehicle
- Always drive the posted speed for a curve
- Use quick steering movements to keep liquids from collecting on one side
- Be confident that your lower center of gravity will reduce the risk of a rollover
Quote From Page 85 Of The CDL Manual:
Curves: Slow down before curves, then accelerate slightly through the curve. The posted speed for a curve may be too fast for a tank vehicle.
All maneuvers in a tanker truck should be made slower and smoother than other vehicle types.
- 148 gallons
- 100 gallons
- 119 gallons
- 172 gallons
Quote From Page 93 Of The CDL Manual:
Cargo tanks and other bulk containers require additional markings on the transport vehicle. "Bulk" is defined as a packaging with a maximum capacity greater than 119 gallons for liquid, including but not limited to such packagings as portable tanks, cargo tanks and tank cars. If required identification number markings on bulk containers are not visible while being transported (such as when loaded inside a closed semitrailer), the transport vehicle itself must also display on each side and each end the required identification number markings.