Colorado CDL General Knowledge study plan

List every Colorado-specific CDL disqualification, suspension, and out-of-service rule from the state driver manual and restate each in one sentence of your own words

Memorize the pre-trip inspection checklist sequence for engine compartment, cab, and lights by writing it out from memory twice without notes

Define the three factors that determine stopping distance (perception, reaction, braking) and compute total stopping distance for three sample speeds at 55 ft per second perception-reaction

Label the parts of a dual air brake system (compressor, governor, reservoirs, treadle valve, slack adjusters, chambers) on a hand-drawn diagram

Recite the low air pressure warning threshold, the governor cut-in and cut-out ranges, and the spring brake pop-out pressure from memory

Perform and narrate the three-part air brake test (leakage rate, low pressure warning, spring brake) in the correct order without notes

Explain how to check slack adjuster pushrod travel and why automatic adjusters still require manual verification

Describe the procedure for descending a long grade using engine braking and snubbing, and identify when to use emergency escape ramps

Distinguish front-wheel braking performance on slippery surfaces and explain why steering axle brakes must remain functional

Identify the causes and corrections for off-tracking in a 53-foot trailer making a right turn

Explain the tractor protection valve and trailer air supply functions and what happens during a trailer breakaway

Describe the coupling and uncoupling sequence in exact order, including the tug test and landing gear placement

Diagnose three common combination-vehicle handling failures (trailer swing, rearward amplification, crack-the-whip) and state the corrective driver action for each

Check and set trailer height, fifth wheel jaw engagement, and air line connections using a written checklist

Classify hazardous materials by hazard class and identify placarding requirements for each class using the placard decision flowchart

Explain shipping paper requirements, including the basic description order and emergency response information

Describe the 9 hazard class definitions and give two example materials per class without referencing any outside table

State the loading and segregation rules for incompatible materials, including foodstuffs and cyanides/acids

Identify the driver's responsibilities at a railroad-highway grade crossing when carrying placarded quantities

Explain the surge and liquid movement problem in tankers and describe how baffles and bulkheads mitigate it

Describe the correct procedure for loading and unloading a tanker, including bonding and grounding to prevent static ignition

State the rules for driving a tank vehicle with a high center of gravity, including reduced speed on curves and the effect of liquid slosh on rollover risk

Identify tanker-specific inspection points: dome covers, vents, valves, and emergency shutoffs

Explain outage (ullage) and why overfilling a tanker is dangerous

Review Colorado general knowledge rules on speed limits, right-of-way, and mountain driving and self-test on 50 mixed questions with 90 percent or better

Re-derive the tanker rollover risk factors and explain how speed, load, and curve radius interact

Explain the hazard communication requirements for tanker cargo, including placarding and shipping papers for bulk shipments

Describe emergency response for a tanker leak or spill, including isolation distances and notification

Identify the differences between smooth-bore and baffled tankers and when each is used

Complete a timed 60-question mixed practice set spanning all five domains and log every error by domain

Re-teach each missed air brake concept aloud from memory without notes

Re-run the coupling/uncoupling and tanker checklists cold and correct any step order errors

Re-verify placarding and segregation rules against 10 new hypothetical loads

Take two full-length timed practice exams simulating test-day conditions and score 90 percent or better on each

Drill only the two weakest domains identified in week 7 until error rates fall below 10 percent

Recite the pre-trip inspection and air brake test aloud one final time with zero omissions

Review Colorado-specific disqualification and out-of-service rules one last time