Unofficial study aid. Not affiliated with or endorsed by the U.S. DOT, the FMCSA, or the Oregon licensing agency. Rules change: always confirm with the official Oregon CDL manual. Practice does not guarantee a passing score on the official test.
1.What is the summit elevation of the Siskiyou Pass on I-5, as described in the Oregon CDL manual?
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Correct answer: D. 4,310 feet Oregon manual: the Siskiyou Pass summit is at 4,310 feet; you lose about 2,300 feet of elevation in six miles at a 6 percent downgrade.
2.Coming down the Siskiyou Pass, about how much elevation do you lose, and over what distance?
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Correct answer: A. About 2,300 feet in six miles Oregon manual: you'll lose about 2,300 feet of elevation in six miles at a 6 percent downgrade, through sharp curves, fog and hazardous road surfaces.
3.How long is a medical waiver issued by Oregon DMV valid, and for what operation?
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Correct answer: C. No more than two years, intrastate commerce only Oregon: a medical waiver issued by DMV is valid for no more than two years and applies only to drivers operating a CMV in intrastate commerce.
4.In Oregon, if you fail a CDL knowledge test, when may you retake it?
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Correct answer: B. As early as the same day Oregon: if you fail a knowledge test, you may retake the test as early as the same day (a fee is charged each time).
5.How long are Oregon commercial knowledge test scores valid?
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Correct answer: C. Six months from the date passed Oregon: commercial knowledge test scores are valid for six months from the date the test was passed.
6.In Oregon, how far in advance must a CDL third-party examiner schedule skills tests?
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Correct answer: B. At least 48 hours Oregon: CDL third-party examiners are required to schedule tests at least 48 hours in advance.
7.In what language must Oregon CDL skills tests be conducted?
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Correct answer: A. English only Oregon: the CDL skills tests must be conducted in English only.
8.When will Oregon accept CDL skills test results from another state?
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Correct answer: B. If you trained in that state and held an Oregon CLP before testing Oregon will accept out-of-state skills test results if the driver attended training in that state and was issued an Oregon CLP prior to taking the skills test.
9.ODOT’s medium-duty example has one single-wheel axle and one dual-wheel axle. Which placement does its chain guidance specify?
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Correct answer: D. One tire on each side of the dual-wheel axle ODOT specifies one chained tire on each side of the dual-wheel axle for this illustrated medium-duty configuration. Source context: ODOT Chains and Traction Tires guidance and OAR chapter 734, division 17. Use the arrangement for the specified configuration and obey current conditional closures. https://www.oregon.gov/odot/MCT/Pages/Chains-and-Traction-Tires.aspx
10.An Oregon tractor-semitrailer meets the stated 53-ft semitrailer limit for a route group. Why does that single measurement not finish route planning?
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Correct answer: C. Overall length and authorized route group still matter ODOT publishes route-group and overall-length limits in addition to individual unit dimensions. Check the full combination against the intended route. Source context: ODOT Legal Vehicle Dimensions guidance under ORS chapter 818. Ordinary limits do not replace route-specific restrictions or over-dimension permit conditions. https://www.oregon.gov/odot/mct/pages/legal-vehicle-dimensions.aspx
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