Vermont CDL — General Knowledge practice
Vermont CDL — General Knowledge: Road Signs practice test
Learn the shapes, colors, and meanings of regulatory, warning, and guide signs — from stop and yield to construction and school-zone signs.
Content reviewed against official driver handbooks · August 12, 2026
12 questions · pass with 10 correct. You get instant feedback and an explanation after every answer.
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12 sample Road Signs questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
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1. A Vermont driver hauls hazardous materials that require placards, but only inside the state and in a truck under 26,000 pounds. Does the manual say a medical certificate is needed?
Correct answer: Yes; placarded hazmat puts the driver among those who must have one
Drivers of vehicles carrying placarded hazardous materials are one of the groups the manual lists as Non-Excepted Intrastate, and those drivers must get a medical certificate.
Source: Vermont Commercial Driver's Manual — Commercial Driver's License Medical Self-Certification
2. According to the manual's weight definitions, where is a power unit manufacturer's Gross Combination Weight Rating value displayed?
Correct answer: On the FMVSS certification label
The definition refers to the value the power unit's manufacturer specifies, when that value appears on the FMVSS certification label, the label required under the federal vehicle safety standards.
Source: Vermont Commercial Driver's Manual — Section 3.2.1, Definitions You Should Know
3. A Vermont permit holder with the Tank Vehicle endorsement is offered an empty tanker that last carried a placarded hazardous material and has not been purged. May the permit holder drive it?
Correct answer: No; an unpurged tank that held hazardous materials is off limits
A permit holder with the tank endorsement may operate only an empty tank vehicle, and may not operate any tank that held hazardous materials until it has been purged of all residue.
Source: Vermont Commercial Driver's Manual — Commercial Learner's Permit
4. During the in-cab part of the seven-step inspection, which of these does the manual name as an obstruction to look for on the windshield?
Correct answer: Illegal stickers
Mirrors and the windshield are inspected for cracks, dirt, illegal stickers and anything else that keeps you from seeing clearly.
Source: Vermont Commercial Driver's Manual — Section 2.1.5, Seven-step Inspection Method
5. Placard rules matter most to drivers who need the hazardous materials endorsement. In which section of the manual are those rules given?
Correct answer: Section 9
Section 2 gives only the basics every driver should know. It says the rules about placards, and the material for the endorsement's written test, are in Section 9.
Source: Vermont Commercial Driver's Manual — Section 2.23.3, Lists of Regulated Products
6. Section 2 describes several warning signs and devices used at railroad crossings. Which of these is NOT one of them?
Correct answer: A green arrow signal showing the track is clear
The section covers the round advance warning sign, pavement markings, the crossbuck sign, flashing red light signals and gates. No green signal is described.
Source: Vermont Commercial Driver's Manual — Section 2.15.2, Warning Signs and Devices
7. A note in Vermont's pre-trip inspection test information says vehicles must display proper reflective sheeting. On which parts of the vehicle?
Correct answer: The sides and the rear
The note calls for proper side and rear reflective sheeting, citing the federal equipment regulations in 49 CFR Part 393.
Source: Vermont Commercial Driver's Manual — Pre-Trip Inspection Test
8. Vermont's list of excepted interstate activities includes custom harvesting on a farm. To which transport does the manual say that exception does NOT apply?
Correct answer: Hazardous materials that require a placard
A parenthetical note says the custom harvesting exception does not cover hauling hazardous materials that need a placard, and it does not cover combination vehicles.
Source: Vermont Commercial Driver's Manual — Commercial Driver's License Medical Self-Certification
9. After a fuel stop you climb back into the cab and find the hazardous materials shipping papers on the driver's seat, where you left them. Now that you are about to drive, where do they belong?
Correct answer: In a pouch on the door next to you, or in plain sight within reach
The seat is the place for the papers only while you are out of the vehicle. During driving they ride in a pouch on the door beside the driver, or sit in clear view where the driver can reach them.
Source: Vermont Commercial Driver's Manual — Section 2.23.2, Why Are There Rules?
10. What must the vehicle you bring to a Vermont CDL skills test have on it to show it meets inspection requirements?
Correct answer: A valid inspection sticker
The skills-test vehicle needs an inspection sticker that is valid, and it has to satisfy every inspection requirement.
Source: Vermont Commercial Driver's Manual — Commercial Driver's License Appointments
11. Which of these statements about hazardous materials placards is NOT among the rules the manual gives all commercial drivers?
Correct answer: They must be lit from behind at night
A placarded vehicle has at least four identical placards, readable from all four directions, each at least 9.8 inches square and turned up on one point to form a diamond. Nothing is said about lighting them.
Source: Vermont Commercial Driver's Manual — Section 2.23.3, Lists of Regulated Products
12. A Vermont Commercial Learner's Permit holder is offered a practice run in a placarded truck carrying hazardous materials, with a fully endorsed CDL holder in the next seat. Is that allowed?
Correct answer: No, a permit holder may not drive a commercial vehicle hauling hazardous materials
Vermont's permit rules bar a learner's permit holder from operating a commercial vehicle that is carrying hazardous materials, whoever is riding along.
Source: Vermont Commercial Driver's Manual — Commercial Learner's Permit
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