CDL Hazard Perception Practice Questions
Hazard Perception makes up 3 of every 50 questions on a Tigertest CDL practice test. Here are 10 of the 45 questions on it, each with the answer and the reason.
Updated by the Tigertest team. Covers the CDL general knowledge exam. 80% to pass on the real test.
1. When scanning the road ahead, how far should you look to identify potential hazards?
- A.3-5 seconds ahead
- B.12-15 seconds ahead
- C.8-10 seconds ahead
- D.5-7 seconds ahead
Answer: B. Looking 12-15 seconds ahead gives you adequate time to identify hazards and plan your response safely.
2. You're approaching a construction zone with workers present. What should be your primary concern?
- A.Maintaining posted speed limits
- B.Getting through quickly
- C.Following other vehicles closely
- D.Worker safety and reducing speed
Answer: D. Worker safety is the top priority in construction zones, requiring reduced speed and increased attention to prevent accidents.
3. What is the most important action when you see a school bus with flashing red lights ahead?
- A.Come to a complete stop
- B.Slow down and proceed with caution
- C.Change lanes to pass quickly
- D.Maintain current speed
Answer: A. Every state requires traffic to stop when a school bus displays flashing red lights, because children may be crossing the road.
4. You notice a pedestrian waiting to cross at an unmarked crosswalk. What should you do?
- A.Continue at current speed
- B.Sound your horn so they know to stay back
- C.Prepare to stop and yield right-of-way
- D.Speed up to clear the crosswalk before they step out
Answer: C. Pedestrians have the right-of-way at all intersections, marked or unmarked, and professional drivers must always yield.
5. When passing a cyclist, what is the minimum clearance most states require?
- A.One foot clearance is legally sufficient
- B.Two feet clearance in most situations
- C.At least 3 feet when passing
- D.Same distance as for passenger cars
Answer: C. Most states require at least 3 feet of clearance when passing cyclists due to their vulnerability and unpredictable movements.
6. You're driving through an area known for animal crossings during dusk. What precaution should you take?
- A.Reduce speed and scan shoulders carefully
- B.Increase speed to minimize exposure time
- C.Use high beam headlights continuously
- D.Sound horn frequently
Answer: A. Animals are most active at dawn and dusk, requiring reduced speed and careful observation of roadside areas where they might emerge.
7. What indicates a potential road surface hazard that requires immediate attention?
- A.Recently painted lane markings that are still bright
- B.Clean, dry asphalt with no visible defects
- C.Wet pavement reflections from recent light rainfall
- D.Sudden change in pavement color or texture
Answer: D. Changes in pavement appearance often indicate oil spills, ice, loose gravel, or other hazardous surface conditions.
8. You see a vehicle stopped on the shoulder ahead with hazard lights flashing. What is your safest response?
- A.Flash your lights to acknowledge
- B.Move over or slow down significantly
- C.Speed up to pass the stopped vehicle quickly
- D.Maintain speed in your lane
Answer: B. Move Over laws require drivers to change lanes or reduce speed when approaching stopped emergency or disabled vehicles.
9. When approaching a merge point, what should you watch for in merging traffic?
- A.Vehicles maintaining constant speed
- B.Vehicles accelerating or hesitating
- C.Properly spaced vehicles
- D.Vehicles using turn signals early
Answer: B. Merging drivers who accelerate suddenly or hesitate create unpredictable situations that require your immediate attention and adjustment.
10. At a controlled intersection, what should you scan for even when you have a green light?
- A.Only cross traffic from left and right
- B.Traffic signal timing and upcoming changes
- C.Road surface conditions and potential hazards
- D.Red light runners and pedestrians
Answer: D. Even with a green light, professional drivers must watch for vehicles running red lights and pedestrians entering the crosswalk.
Practice all 45 hazard perception questions, and the rest of the 600-question bank, in the free CDL training sets. Questions you miss come back until you have mastered them.
Start practicingFree to start. No account needed.