Idaho CDL — General Knowledge Practice Test

The Idaho CDL — General Knowledge knowledge test has ~50 questions; you need ~40 correct (80%) to pass.

Or take one of 10 full-length practice tests

50 questions · pass with 40 correct. You get instant feedback and an explanation after every answer.

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The full-length test, with feedback and an explanation after every answer.

Idaho CDL — General Knowledge practice tests

10 full-length practice tests, each with 50 questions and a pass mark of 40, like the real test. You see the answers and explanations after you grade.

Test 1
50 questions · pass with 40
An Idaho driver runs a custom motorcoach rated above 26,001 pounds for commercial purposes, carrying only eight people. What does the manual require?
Test 2
50 questions · pass with 40
Idaho's manual cites Idaho Code 49-303(4) for an experience requirement. How much licensed driving experience must you have to obtain a CDL?
Test 3
50 questions · pass with 40
Gravel is on Idaho's Exempt Commodities List, but with a note attached. What does the note say?
Test 4
50 questions · pass with 40
When does a State Driver Licensing Agency query the Clearinghouse?
Test 5
50 questions · pass with 40
You realize your school bus has driven past a student's unloading stop. What does the manual say?
Test 6
50 questions · pass with 40
Your oil pressure gauge shows pressure that is low, dropping or fluctuating. What does the manual's gauge illustration tell you to do?
Test 7
50 questions · pass with 40
The manual pictures a highway sign addressed to truckers about runaway truck ramps. What does the sign tell them?
Test 8
50 questions · pass with 40
During a bus inspection, with the key in the 'on' position, what do you check about the emergency exits?
Test 9
50 questions · pass with 40
Bulkheads split a liquid tank into several smaller compartments. What should the driver watch when loading and unloading them?
Test 10
50 questions · pass with 40
When you pull trailers at night, how does the combination section say to set your speed?