Florida CDL Road Signs Practice 2026
Road signs are not a separate CDL knowledge test, but questions about them show up in other tests, and a commercial driver is expected to read them instantly. These questions come from the federal Manual on Uniform Traffic Control Devices, which sets the signs used in Florida.
Shapes and colors carry the meaning before you can read the words. Use this as a quick refresher.
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Question 1 of 15
A yellow advisory speed plate mounted below a curve warning sign means:
The yellow plate shows the speed engineers tested and found safe for that curve in dry, normal conditions. It is not a legal speed limit. You may need to go slower if it is wet, icy, or your vehicle is heavily loaded.
Handbook: MUTCD 2C - Advisory Speed Plaques
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Question 2 of 15
A green-bordered mile marker on the right shoulder of an interstate is used primarily to:
Green mile markers give your exact position on the highway using a numbered system. If you need to call in a breakdown or accident, you can tell emergency responders the mile marker number so they can find you quickly.
Handbook: MUTCD 2H - Mile Markers
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Question 3 of 15
A yellow diamond-shaped sign generally indicates:
Yellow diamond signs are warning signs. They alert drivers to upcoming hazards or changes in road conditions, such as curves, intersections, or pedestrian crossings.
Handbook: MUTCD 2C - Warning Signs
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Question 4 of 15
A reflective orange triangle with a red border mounted on the rear of a vehicle indicates:
The slow-moving vehicle emblem is a fluorescent orange triangle with a red reflective border, required on vehicles designed to travel at 25 mph or less, such as farm equipment or construction machinery. When you see it, expect the vehicle ahead to be moving far slower than the posted limit and plan your following distance and passing accordingly.
Handbook: ANSI/ASAE S276 - Slow-Moving Vehicle Emblem
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Question 5 of 15
A round yellow sign with a black 'X' and the letters 'RR' is placed in advance of:
This sign is the standard advance warning for an upcoming railroad crossing. The round shape and yellow color are used exclusively for railroad crossing warnings, making this sign easy to recognize.
Handbook: MUTCD 8B - Railroad Warning Signs
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Question 6 of 15
What is the standard meaning of a yellow pennant-shaped sign (a horizontal triangle pointing right) posted on the left side of the road?
The pennant shape is used only for this one sign. It always means no-passing zone ahead. It's placed on the left side of the road so it faces the driver directly, reinforcing the message at the point where passing becomes prohibited.
Handbook: MUTCD 2B - No Passing Zone
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Question 7 of 15
On U.S. roadways, what color is used for signs that provide motorist services such as food, fuel, and lodging?
Blue signs mark motorist services like gas stations, restaurants, and hotels. This color is used specifically for traveler services so drivers can quickly spot them while on the road.
Handbook: MUTCD 2I - General Service Signs
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Question 8 of 15
An HOV lane sign restricting use to '2 or more' occupants applies to:
HOV (High-Occupancy Vehicle) lanes are reserved for vehicles carrying a minimum number of people, in this case at least 2. The restriction only applies during the hours shown on the sign. Outside those hours, any vehicle may use the lane.
Handbook: MUTCD 2G - Preferential Lane Signs
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Question 9 of 15
Which sign tells drivers that all vehicles must come to a complete stop and proceed in turn?
The "All Way" plate under a stop sign means every road entering that intersection has a stop sign. Every driver must come to a full stop and then take turns moving through the intersection based on who arrived first.
Handbook: MUTCD 2B - All-Way Stop
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Question 10 of 15
A 'Detour' sign with a directional arrow tells the driver to:
A detour sign means the normal road ahead is blocked or closed, and you must take the alternate route shown by the arrow. You are not allowed to continue straight or choose your own path. The detour is mandatory.
Handbook: MUTCD 6F - Temporary Traffic Control
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Question 11 of 15
A standard rectangular orange sign reading 'Flagger Ahead' in a work zone means:
A flagger is a worker stationed in or near the road to manually control traffic flow through the work zone. You must slow down, watch for their hand signals or paddle signs, and do exactly what they direct. Their instructions override normal traffic controls.
Handbook: MUTCD 6F - Flagger Stations
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Question 12 of 15
Which shape is used exclusively in the United States for the Stop sign?
The eight-sided shape (octagon) is reserved solely for Stop signs. This unique shape lets drivers recognize a Stop sign instantly, even from a distance or when visibility is poor, before they can read the word "STOP."
Handbook: MUTCD 2B - Regulatory Signs
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Question 13 of 15
On a multi-lane road, a center lane marked with arrows pointing in both directions is reserved for:
This lane sits in the middle of the road and lets drivers traveling in either direction use it to make a left turn. The arrows pointing both ways signal that it is shared, not a regular travel lane, so drivers from both sides can merge into it before turning.
Handbook: MUTCD 3B - Pavement Markings
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Question 14 of 15
Green guide signs on a highway are primarily used to convey:
Green highway signs give drivers directional guidance. Things like exit numbers, route names, distances to cities, and which lane to take. The green color signals that the information is about where to go, not about hazards or regulations.
Handbook: MUTCD 2D - Guide Signs
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Question 15 of 15
What color is used for signs that direct drivers to parks, campgrounds, and other recreational or cultural locations?
Brown signs are the standard color for recreational and cultural interest areas, such as national parks, campgrounds, museums, and historic sites. This color coding helps drivers quickly identify routes to leisure destinations without confusing them with regulatory or warning signs.
Handbook: MUTCD 2J - Recreational and Cultural Interest Signs
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Download on the App StoreMore Florida CDL practice tests
- General Knowledge Practice TestTaken by every CDL applicant, whatever the license class.
- Air Brakes Practice TestRequired if your vehicle has air brakes, including air over hydraulic.
- Combination Vehicles Practice TestRequired for a Class A license.
- Hazmat Practice TestH endorsement. Also needs a TSA background check.
- Passenger Practice TestP endorsement, for vehicles that carry 16 or more people.
- Tank Vehicles Practice TestN endorsement, for tanks over 119 gallons each and 1,000 combined.
- School Bus Practice TestS endorsement, for driving a school bus.
- Doubles and Triples Practice TestT endorsement, for pulling double or triple trailers.
Florida CDL Exam is an independent study aid. It is not affiliated with, endorsed by, or approved by the FLHSMV, the FMCSA, or any Department of Transportation. Questions are original, written from the public Florida CDL Handbook, and are not actual exam questions. Read the official Florida CDL Handbook (PDF).