Colorado CDL Flashcards
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Questions and Answers

What must you have to operate a single vehicle with a GVWR of 26,001 lbs or more?

  • CDL (correct)
  • Endorsement
  • Learner's Permit
  • Driver's License
  • What is a recreational vehicle?

    A motor home used exclusively for pleasure, without transporting cargo or passengers for profit.

    What class of CDL is required for combination vehicles?

  • Class C
  • Class A (correct)
  • Class B
  • Class D
  • What class of CDL is for heavy straight vehicles?

    <p>Class B</p> Signup and view all the answers

    What class of CDL is for small vehicles?

    <p>Class C</p> Signup and view all the answers

    How old must you be to apply for a CDL?

    <p>18</p> Signup and view all the answers

    What is the illegal BAC while driving a CMV?

    <p>.04%</p> Signup and view all the answers

    You will use your CDL for one year if your BAC is higher than what?

    <p>.04%</p> Signup and view all the answers

    What are the conditions for a 24-hour suspension?

    <p>If the BAC is between .00000001 to .04%</p> Signup and view all the answers

    Can you make a call while driving?

    <p>False</p> Signup and view all the answers

    Can you text while driving?

    <p>False</p> Signup and view all the answers

    Do you have to wear a safety belt at all times?

    <p>True</p> Signup and view all the answers

    What constitutes good tires?

    <p>4/32 inch tread depth on front tires; 2/32 inch on other tires. No fabric showing.</p> Signup and view all the answers

    What is not prohibited on tires?

    <p>False</p> Signup and view all the answers

    What emergency equipment should the vehicle be equipped with?

    <p>Fire extinguishers, spare fuses, warning devices.</p> Signup and view all the answers

    What should you check during a vehicle inspection?

    <p>Instruments, air pressure, temperature gauge, pressure gauge, ammeter, mirrors, tires.</p> Signup and view all the answers

    If you are transporting cargo, you must inspect the cargo within the first _____________ miles of a trip and every ____________ miles or every __________ hours (whichever comes first) to ensure it is secured.

    <p>50; 150; 3</p> Signup and view all the answers

    What are the safety rules for backing safely?

    <p>Start in proper position, look at your path, use mirrors, back slowly, back and turn toward the driver's side, use a helper.</p> Signup and view all the answers

    What do retarders do?

    <p>They help slow a vehicle by reducing brake wear.</p> Signup and view all the answers

    How far ahead should you look while driving?

    <p>12-15 seconds ahead.</p> Signup and view all the answers

    How should you shift your attention while driving?

    <p>Back and forth, near and far.</p> Signup and view all the answers

    When should you check your mirrors?

    <p>Before changing lanes, after signaling, during lane changes.</p> Signup and view all the answers

    What should you do when parked on the side of the road?

    <p>Turn on four-way emergency flashers and place warning devices.</p> Signup and view all the answers

    Stopping distance equals _____________ distance plus _____________ distance plus _____________ distance.

    <p>perception; reaction; braking</p> Signup and view all the answers

    What is perception distance?

    <p>The distance your vehicle travels before your brain recognizes a hazard.</p> Signup and view all the answers

    What is reaction distance?

    <p>The distance you travel before hitting the brakes after seeing a hazard.</p> Signup and view all the answers

    What is braking distance?

    <p>The distance your vehicle travels while braking.</p> Signup and view all the answers

    What is total stopping distance?

    <p>The complete minimum distance traveled until the vehicle stops.</p> Signup and view all the answers

    When you double your speed, the impact is ________ times greater and braking distance is ____________ times longer.

    <p>4; 4</p> Signup and view all the answers

    When you triple your speed, the impact and braking distance is __________ greater.

    <p>9</p> Signup and view all the answers

    What is hydroplaning?

    <p>When tires lose contact with the road and have reduced traction.</p> Signup and view all the answers

    How should you select speed on a downgrade?

    <p>Based on the weight of the vehicle, length, and steepness of the grade.</p> Signup and view all the answers

    How much space should be in front of your vehicle?

    <p>One second for every 10 feet of vehicle length, plus additional for speeds above 40 mph.</p> Signup and view all the answers

    What should you do when stopping suddenly?

    <p>Steer to the right shoulder.</p> Signup and view all the answers

    What is the right-turning procedure?

    <p>Turn slowly and wide; do not back up for anyone.</p> Signup and view all the answers

    What should you do when turning left?

    <p>Reach the center of the intersection before making the left turn.</p> Signup and view all the answers

    What are signs of fatigue while driving?

    <p>All of the above</p> Signup and view all the answers

    What are the low and high beams distances?

    <p>Low beams - 250 feet; High beams - 250-500 feet.</p> Signup and view all the answers

    When should you use high beams?

    <p>When you are not within 500 feet of another vehicle.</p> Signup and view all the answers

    What happens to air pressure with temperature?

    <p>Air pressure increases.</p> Signup and view all the answers

    What is a passive crossing?

    <p>True</p> Signup and view all the answers

    What is an active crossing?

    <p>True</p> Signup and view all the answers

    What are advance warning signs?

    <p>Round, black on yellow signs in front of railroad crossings.</p> Signup and view all the answers

    What do pavement markings indicate?

    <p>An 'X' with 'RR' indicating a no-passing zone before a railroad.</p> Signup and view all the answers

    What do cross buck signs require?

    <p>Yield to the right-of-way of the train.</p> Signup and view all the answers

    What do flashing red light signals indicate?

    <p>True</p> Signup and view all the answers

    What should you do when gates are down at a railroad crossing?

    <p>True</p> Signup and view all the answers

    What is required for a full stop at railroad crossings?

    <p>True</p> Signup and view all the answers

    What should you avoid when crossing railroad tracks?

    <p>Do not shift gears while crossing.</p> Signup and view all the answers

    What can get caught on raised crossings?

    <p>Low slung units, single-axle tractors pulling long trailers.</p> Signup and view all the answers

    What causes brake fading/failure?

    <p>Heat from overly frequent use and poor adjustment.</p> Signup and view all the answers

    What should you do in an emergency to avoid an accident?

    <p>Steer to the right shoulder.</p> Signup and view all the answers

    What is controlled braking?

    <p>Apply brakes hard without locking wheels and continue to steer.</p> Signup and view all the answers

    What is stab braking?

    <p>Braking fully, releasing when wheels lock, then reapplying once they start rolling.</p> Signup and view all the answers

    What causes brake failure?

    <p>Loss of hydraulic pressure and brake fade on long hills.</p> Signup and view all the answers

    What is an antilock braking system (ABS)?

    <p>A system that prevents wheel lock-up and helps maintain vehicle control.</p> Signup and view all the answers

    What trucks must have ABS?

    <p>Truck tractors with air brakes built after March 1, 1997.</p> Signup and view all the answers

    When braking with ABS, how should you apply the brakes?

    <p>Apply them the same as you always have.</p> Signup and view all the answers

    What are the steps to follow after an accident?

    <p>Protect the area, notify authorities, care for the injured.</p> Signup and view all the answers

    What are some causes of fire in vehicles?

    <p>Spilled fuel, under-inflated tires, short circuits, driver smoking, loose fuel connections.</p> Signup and view all the answers

    What are Class-O-Fires?

    <p>A: Wood/Paper; B: Gas, Oil; C: Electrical Fires; D: Combustible Metals.</p> Signup and view all the answers

    What type of extinguisher is recommended for Class A fires?

    <p>Multipurpose dry chemical or water.</p> Signup and view all the answers

    What are placards?

    <p>Labels indicating the hazard class of cargo on a vehicle.</p> Signup and view all the answers

    What is the Gross Vehicle Weight Rating?

    <p>The value specified by the manufacturer as the loaded weight of a single vehicle.</p> Signup and view all the answers

    What is the Gross Combination Weight Rating?

    <p>The total weight of the power unit and towed units or any combo yielding the highest value.</p> Signup and view all the answers

    Cargo should have at least one tie-down for each ________ feet of cargo. And there should be at least ________ tie-downs holding it.

    <p>10; 2</p> Signup and view all the answers

    What are two reasons for covering cargo?

    <p>To protect people from spilled cargo and to protect the cargo from weather.</p> Signup and view all the answers

    What parts of the bus must be working?

    <p>Handholds, railings, floor covering, signaling devices, emergency exits, and seats.</p> Signup and view all the answers

    What should buses never carry?

    <p>Poison gas, explosive solids, radioactive materials, excessive hazardous materials.</p> Signup and view all the answers

    What is a standee line?

    <p>A 2-inch line on the floor indicating where riders cannot stand in relation to the driver.</p> Signup and view all the answers

    What are prohibited practices while driving a bus?

    <p>Don't refuel with riders aboard, avoid distractions, do not tow with passengers on board.</p> Signup and view all the answers

    Study Notes

    CDL Requirements

    • A Commercial Driver's License (CDL) is necessary to operate:
      • A single vehicle with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more.
      • A combination vehicle with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, if the towed vehicle exceeds 10,000 pounds.
      • A vehicle designed to transport 16 or more passengers, including the driver.

    Vehicle Classifications

    • Class A: For combination vehicles.
    • Class B: For heavy straight vehicles with a GVWR of 26,001 pounds or more.
    • Class C: For smaller vehicles that do not fall into the other classes.

    License Application

    • Minimum age to apply for a CDL is 18.

    Blood Alcohol Concentration (BAC)

    • Illegal BAC level while operating a Commercial Motor Vehicle (CMV) is 0.04%.
    • Various violations may lead to a one-year suspension of the CDL, including driving with a BAC over 0.04% or leaving the scene of an accident.

    Safety Regulations

    • Use of handheld devices, including phone calls and texting while driving, is prohibited.
    • Safety belts must be worn at all times during operation.

    Vehicle Inspection Standards

    • Check for:
      • Tread depth (4/32 inch on front tires, 2/32 inch on others).
      • No fabric showing through tires.
    • Emergency equipment requirements include fire extinguishers and warning devices.

    Cargo and Load Regulations

    • Inspect cargo within the first 50 miles and every 150 miles or 3 hours thereafter to ensure it’s secured.
    • Cargo must have a minimum of one tie-down for every 10 feet and at least two tie-downs total.

    Distance and Speed Management

    • Look ahead 12-15 seconds while driving; at lower speeds it's one block, and at higher speeds it's a quarter-mile.
    • Maintain safe following distance: one second for every 10 feet of vehicle length below 40 mph; add one second if above 40 mph.

    Turning and Backing Safety

    • For right turns, turn slowly and avoid wide left turns to maintain safe clearance.
    • For left turns, ensure the vehicle reaches the center of the intersection before making the turn.

    Fatigue Awareness

    • Key signs of driver fatigue include difficulty focusing, heavy eyelids, and drifting from the lane, which is a major cause of fatal accidents.

    Brake Systems and Emergency Protocols

    • Brake fade can occur from overheating; regular checks are essential.
    • In emergencies, steer towards the right shoulder and use controlled or stab braking techniques to maintain control.

    Fire Safety

    • Common fire causes include spilled fuel, under-inflated tires, and electrical system shorts.
    • Use appropriate fire extinguishers based on fire class: A for wood/paper, B for flammable liquids, and C for electrical fires.

    Railroad Crossing Safety

    • At a railroad crossing, full stops are required when driving a school bus or transporting hazardous materials.
    • Must yield to trains at flashing red lights and gates.

    Prohibited Practices for Bus Operation

    • Do not refuel with passengers on board, and avoid distractions while driving.
    • Certain hazardous materials are not allowed on buses, such as poison gas and radioactive materials.

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    Description

    Test your knowledge of the Colorado Commercial Driver's License (CDL) requirements. These flashcards cover essential definitions and regulations for operating heavy vehicles and recreational vehicles. Improve your understanding and prepare for your CDL exams with these handy study aids.

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