Ontario M1 overview

Ontario M1: Warning, construction and guide signs

Yellow diamond warning signs for curves, hills, lane endings, crossings and hazards, orange temporary condition signs in work zones, green guide and exit signs, and the slow-moving vehicle sign.

  • 29 questions
  • Topic drill
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Warning, construction and guide signs · Question 1Score 0/0
Yellow diamond showing a black car with wavy skid marks behind it

What does this sign warn you about?

Study reference: MTO Driver's Handbook (online edition, 2026), Ch. 3 Traffic signs and lights — Signs: warning, temporary condition, information and direction, other signs

All 29 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

  1. What does this sign warn you about?

    Yellow diamond showing a black car with wavy skid marks behind it
    1. A sharp curve to the right
    2. The pavement is slippery when wet
    3. Loose gravel on the shoulder
    4. A car wash entrance ahead
  2. You pass interchange 204 on Highway 401 and plan to leave at interchange 250. About how far do you still have to ride?

    1. 46 kilometres
    2. 54 kilometres
    3. 204 kilometres
    4. 250 kilometres
  3. An intersection warning sign shows one thick arrow and one thinner line. What does the thick arrow show?

    Yellow diamond with a thick upward arrow crossed by a thinner horizontal line
    1. That the road ends ahead
    2. The road you must turn onto
    3. That traffic merges from the side
    4. Which road has the right-of-way
  4. What does this orange sign mean?

    Orange diamond with a black figure holding up a flag
    1. A parade route is ahead
    2. A traffic control person is ahead
    3. Workers are mowing grass ahead
    4. A school crossing guard is ahead
  5. You see this sign in a work zone. What should you do?

    Orange diamond with two lanes; one lane is blocked and an arrow curves into the other lane
    1. Use the closed lane if it looks clear
    2. Merge into the open lane shown by the arrow
    3. Ride on the shoulder past the closure
    4. Stop until a worker waves you through
  6. This sign warns that another road is about to join yours. Whose job is it to make the merge work?

    Yellow diamond with a straight upward arrow and a curved line joining it from the left
    1. Whoever is travelling faster
    2. Drivers on both roads share it
    3. Only drivers on the main road
    4. Only drivers on the joining road
  7. Riding in the right lane, you see this sign. How should you respond?

    Yellow diamond with two black lines, the right one curving in to meet the left one
    1. Ride onto the right shoulder
    2. Speed up to stay ahead of traffic in the left lane
    3. Move safely into the left lane before yours ends
    4. Stop and wait for a gap in traffic
  8. What does this sign tell you?

    Yellow diamond with a small red eight-sided shape above an upward arrow
    1. The road ends ahead
    2. Stopping is not allowed ahead
    3. A yield sign is ahead
    4. A stop sign is ahead, so slow down
  9. What lies ahead when you pass this orange sign?

    Orange diamond with three lines of black lettering, the last reading 1 km
    1. Construction starting in one kilometre
    2. A lower speed limit in one kilometre
    3. Construction ending in one kilometre
    4. A road closure one kilometre long
  10. You are approaching this sign on a two-lane road. What lies ahead?

    Yellow diamond showing two black lines that split apart around a rounded black median
    1. The road splits into a divided highway
    2. A divided highway comes to an end
    3. A two-way road begins
    4. The pavement narrows to one lane
  11. A truck with a do-not-pass sign is leading traffic through a road work zone. How do you ride?

    1. Follow it and do not pass
    2. Pass it on the right shoulder
    3. Pass it on the left when clear
    4. Pass it if it slows below 40 km/h
  12. According to the handbook, what may you need to do when you see this sign?

    Yellow diamond with a truck on a steep black slope
    1. Move to the left lane
    2. Shut off your engine
    3. Use a lower gear
    4. Turn on your high beams
  13. A truck ahead has a long commercial vehicle (LCV) placard on the back. How long can this kind of double-trailer truck be?

    White rectangular placard with black lettering above a truck pulling two trailers
    1. Up to 23 metres
    2. Up to 30 metres
    3. Up to 40 metres
    4. Up to 50 metres
  14. An orange sign warns that the pavement ahead has been milled or grooved. What does the handbook say riders may experience there?

    1. Reduced traction
    2. Louder tire noise only
    3. Better grip than usual
    4. A smoother ride than usual
  15. Freeway exit numbers in Ontario are based on what?

    Green freeway sign with a small tab on top reading EXIT 204 above a street name
    1. Distance to the next large city
    2. The order the exits were built
    3. The freeway's posted speed limit
    4. Distance from where the freeway begins
  16. The arrows on this sign show how traffic moves inside the roundabout ahead. Which way is that?

    Yellow diamond with three curved arrows forming a circle
    1. Counter-clockwise
    2. Straight across the centre
    3. Either direction
    4. Clockwise
  17. What do green rectangular signs with white letters usually tell you?

    1. Speed limits and fines
    2. Parking rules and times
    3. Distances and destinations
    4. Road work zones ahead
  18. A curve sign carries a small tab with a number on it. What does that number give you?

    Yellow diamond with a black arrow curving to the right, above a yellow tab reading 50 km/h
    1. The speed limit for the whole road
    2. The top safe speed for that curve
    3. The lowest speed allowed in the curve
    4. The distance to the curve in metres
  19. The truck on this sign is drawn on the right side. What does that tell you?

    Yellow diamond with a black truck on the right half and a vertical line on the left
    1. Trucks must keep to the right lane
    2. Trucks are not allowed on the left
    3. Truck parking is on the right
    4. The truck entrance is on the right
  20. Besides warning you of a railway crossing, what else does this sign show?

    Yellow diamond with a vertical road crossed at a slant by a track with cross ties
    1. How many sets of railway tracks cross the road ahead
    2. Whether the crossing has gates
    3. The distance to the crossing
    4. The angle at which the tracks cross the road
  21. A farm tractor ahead displays this sign. What does it tell you about its speed?

    Orange triangle with a dark red border
    1. It travels at 30 km/h or less
    2. It travels at 60 km/h or less
    3. It travels at 40 km/h or less
    4. It travels at 50 km/h or less
  22. On a country road you see a row of these arrowhead signs along a bend. What do they do?

    Tall yellow rectangle with a single black arrowhead pointing right
    1. Mark where passing is allowed
    2. Warn that your lane will end
    3. Lead you around a sharp curve
    4. Point the way to a detour
  23. What should you do when you see this sign?

    Yellow diamond with a black line rising into two rounded humps
    1. Move onto the shoulder to avoid it
    2. Slow down and keep control of your bike
    3. Stop and walk your motorcycle across
    4. Speed up to get over it quickly
  24. You see a diamond-shaped orange sign with black symbols. What kind of sign is it?

    1. A temporary condition sign, such as road work
    2. A permanent warning sign
    3. A regulatory sign you must obey
    4. An information and direction sign for tourist routes
  25. On a rural highway at dusk you see this sign. What should you be alert for?

    Yellow diamond with a black silhouette of a leaping deer
    1. A wildlife park entrance
    2. Hunters beside the road
    3. Deer crossing the road
    4. A petting zoo ahead
  26. What are emergency detour route (EDR) markers used for?

    White sign with a green border, green capital letters and a green arrow
    1. Showing the way to the nearest hospital
    2. Marking routes for ambulances only
    3. Marking roads closed for the winter
    4. Guiding traffic around a sudden highway closure
  27. When are speeding fines doubled in a construction zone marked with this sign?

    Tall sign with an orange top panel of lettering above a white panel with two more lines of lettering
    1. Every hour of every day
    2. Only on weekends
    3. When workers are present
    4. Only at night
  28. What do most warning signs look like?

    1. A yellow diamond with black letters or symbols
    2. A green rectangle with white letters
    3. An orange diamond with black letters or symbols
    4. A white rectangle with black letters
  29. This marker stands beside an obstacle near the road edge. What do its downward-sloping lines show?

    Tall yellow rectangle with black diagonal stripes sloping down from upper left to lower right
    1. Where to stop for oncoming traffic
    2. The direction the road will curve
    3. That the lane is about to end
    4. The side on which you can safely pass

Warning, construction and guide signs: key rules to remember

Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗

Warning signs

  • Usually yellow diamonds with black letters/symbols; warn of curves, turns, dips, side roads and other unusual conditions.
  • Curve tab: maximum safe speed for the curve. Ramp tab: maximum safe speed on the ramp.
  • Chevrons: posted in groups to guide around sharp curves. Checkerboard border: sharp turn, danger.
  • Hazard marker: object near road edge; downward lines show the side to pass on.
  • Right lane ends: riders in the right lane merge left safely.
  • Merge (two roads join): drivers on both roads share responsibility.
  • Divided highway begins/ends: keep to the right-hand road.
  • Intersection ahead: the arrow shows which direction has the right-of-way.
  • Roundabout ahead: reduce speed; arrows show counter-clockwise travel.
  • Slippery when wet; bump/uneven pavement (slow down, keep control); steep hill (may need lower gear); paved surface ends.
  • Railway crossing ahead: also shows the angle of the tracks.
  • Deer, snowmobile, bicycle, pedestrian, fallen rock, water over road, hidden school bus stop, bus and fire truck entrances.
  • Truck entrance: side shown on the sign is the side of the entrance.
  • Stop sign ahead; traffic lights ahead (slow down).

Temporary condition signs

  • Usually orange diamonds with black letters/symbols: work zones, detours, lane closures, traffic control persons.
  • Construction 1 km ahead; road work; survey crew; traffic control person (drive slowly, watch for instructions).
  • Construction zone: extra caution, lower limit possible.
  • Milled/grooved pavement: stopping may be affected; motorcyclists may have reduced traction.
  • Lane closed: merge into the open lane shown by the arrow.
  • Do not pass the pilot/pace vehicle carrying this sign.
  • Fines doubled sign: HTA speeding fines doubled in a designated construction zone when workers are present.

Information and direction signs

  • Usually green rectangles with white letters: destinations and distances.
  • Interchange numbers = km from the start of the freeway (Hwy 401 exit 204 is 204 km from Windsor); subtract to find distances.
  • Advance exit signs; yellow box with EXIT shows lanes that leave the freeway.

Other signs

  • Slow-moving vehicle sign: orange triangle, red border; vehicle travels 40 km/h or less.
  • EDR markers: guide traffic around an unscheduled provincial highway closure.
  • LCV placard: double trailer up to 40 metres long.

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