Idaho DMV Permit Practice Test 4: 50 Questions
Practice Test 4 has 50 multiple-choice questions on Idaho driving rules, including limited visibility curve, flashing yellow arrow, steady red arrow and railroad crossing warning lights. Each answer is explained as soon as you pick it, and every question is listed with its answer in the study guide below.
More Idaho Practice Tests
What Practice Test 4 Covers
The questions in this test ask about:
- Limited Visibility Curve
- Flashing Yellow Arrow
- Steady Red Arrow
- Railroad Crossing Warning Lights
- Blind Pedestrian
- Parking Downhill with Curb
- Icy Road Safety
- Traffic Stops Suddenly
- Pedestrian in Crosswalk
- Pentagon School Sign
- Following Distance Normal
- Fog Driving
- White Rectangular Sign
- Double Solid Yellow Line
- Green Arrow
Try 5 Questions from This Test
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What should you do when approaching a curve with limited visibility?
Show answer
B. Slow down before the curve
Slowing before entering a curve helps maintain control.
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What does a flashing yellow arrow allow?
Show answer
A. Turn with caution after yielding
A flashing yellow arrow allows a turn after yielding to traffic and pedestrians.
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What must you do at a railroad crossing when warning lights are flashing?
Show answer
C. Stop
Flashing lights at a railroad crossing require a complete stop.
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What should you do when approaching a pedestrian using a white cane?
Show answer
B. Yield and be prepared to stop
Drivers must yield and stop if necessary for pedestrians with canes.
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What should you do when parking downhill with a curb?
Show answer
A. Turn wheels toward the curb
Turning wheels toward the curb helps prevent rolling.
Complete Study Guide: All 50 Questions with Answers
Every question in Practice Test 4, with the correct answer and an explanation for each.
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Q1. What should you do when approaching a curve with limited visibility?
Correct answer: Slow down before the curve
Why: Slowing before entering a curve helps maintain control.
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Q2. What does a flashing yellow arrow allow?
Correct answer: Turn with caution after yielding
Why: A flashing yellow arrow allows a turn after yielding to traffic and pedestrians.
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Q3. What must you do at a railroad crossing when warning lights are flashing?
Correct answer: Stop
Why: Flashing lights at a railroad crossing require a complete stop.
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Q4. What does a solid white line at the edge of the road indicate?
Correct answer: Road edge
Why: A solid white edge line marks the edge of the roadway.
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Q5. When driving at night, how can you reduce glare from oncoming headlights?
Correct answer: Look toward the right edge of the road
Why: Looking toward the right edge reduces headlight glare.
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Q6. What should you do if traffic ahead stops suddenly?
Correct answer: Brake firmly and stay in lane
Why: Firm braking while staying in your lane helps avoid collisions.
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Q7. What does a yellow diamond-shaped sign warn of?
Correct answer: Possible hazards
Why: Diamond-shaped signs warn of hazards or changes ahead.
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Q8. What should you do before entering a roundabout?
Correct answer: Yield to traffic already inside
Why: Drivers must yield to traffic already in the roundabout.
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Q9. What does a steady red arrow signal mean?
Correct answer: Stop and remain stopped
Why: A steady red arrow means you must stop and wait.
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Q10. What is the safest following distance in normal conditions?
Correct answer: Three seconds
Why: A three-second following distance allows time to react.
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Q11. What should you do when approaching a pedestrian using a white cane?
Correct answer: Yield and be prepared to stop
Why: Drivers must yield and stop if necessary for pedestrians with canes.
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Q12. What does a broken white lane line indicate?
Correct answer: Lane changes permitted
Why: Broken white lines allow lane changes when safe.
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Q13. What should you do if your vehicle begins to hydroplane?
Correct answer: Ease off the accelerator
Why: Easing off the accelerator helps tires regain traction.
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Q14. What does a red octagonal sign always indicate?
Correct answer: Stop
Why: Octagonal signs are used only for stop signs.
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Q15. When are headlights required to be on?
Correct answer: From sunset to sunrise or low visibility
Why: Headlights are required at night and when visibility is poor.
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Q16. What should you do if an emergency vehicle approaches with sirens?
Correct answer: Pull over and stop
Why: Drivers must pull over and stop for emergency vehicles.
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Q17. What does a solid yellow centerline indicate?
Correct answer: No passing
Why: A solid yellow line means passing is not allowed.
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Q18. What should you do at an uncontrolled intersection?
Correct answer: Yield to vehicles on the right
Why: At uncontrolled intersections, yield to vehicles on the right.
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Q19. What does a pentagon-shaped sign usually mark?
Correct answer: School zone
Why: Pentagon-shaped signs indicate school zones or crossings.
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Q20. What is the main risk of tailgating?
Correct answer: Reduced reaction time
Why: Following too closely reduces reaction time.
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Q21. What should you do when parking downhill with a curb?
Correct answer: Turn wheels toward the curb
Why: Turning wheels toward the curb helps prevent rolling.
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Q22. What does a flashing red traffic signal mean?
Correct answer: Stop and proceed when safe
Why: A flashing red signal is treated as a stop sign.
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Q23. What is the legal blood alcohol concentration limit for adult drivers?
Correct answer: 0.08%
Why: A BAC of 0.08% or higher is illegal.
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Q24. What does a round yellow road sign warn of?
Correct answer: Railroad crossing
Why: Round yellow signs indicate railroad crossings.
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Q25. What should you do if you miss your freeway exit?
Correct answer: Take the next exit
Why: Drivers should continue to the next exit safely.
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Q26. What does a green arrow signal allow?
Correct answer: Movement only in the arrow direction
Why: A green arrow allows movement only in its direction.
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Q27. What should you do when driving in fog?
Correct answer: Slow down
Why: Slowing down improves visibility and reaction time.
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Q28. What does a white rectangular sign usually indicate?
Correct answer: Regulation
Why: White rectangular signs provide regulatory information.
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Q29. What should you do before changing lanes?
Correct answer: Check mirrors and blind spots
Why: Checking mirrors and blind spots ensures safety.
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Q30. What does a double solid yellow line mean?
Correct answer: No passing both directions
Why: Double solid yellow lines prohibit passing in both directions.
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Q31. What should you do when approaching a stop sign?
Correct answer: Come to a complete stop
Why: Stop signs require a full stop.
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Q32. What is the purpose of seat belts?
Correct answer: Reduce injury risk
Why: Seat belts reduce injuries and prevent ejection.
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Q33. What should you do if your brakes fail?
Correct answer: Pump the brakes
Why: Pumping the brakes and downshifting can help slow the vehicle.
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Q34. What does a flashing yellow traffic signal mean?
Correct answer: Proceed with caution
Why: Flashing yellow signals warn drivers to proceed carefully.
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Q35. What should you do when approaching a school bus with flashing red lights?
Correct answer: Stop
Why: Drivers must stop for school buses with flashing red lights.
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Q36. What does a broken yellow centerline indicate?
Correct answer: Passing allowed when safe
Why: Broken yellow lines allow passing when safe.
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Q37. What should you do at a railroad crossing with no signals?
Correct answer: Stop, look, and listen
Why: Drivers must stop, look, and listen before crossing.
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Q38. What does a red curb indicate?
Correct answer: No stopping or parking
Why: Red curbs mean no stopping or parking.
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Q39. What should you do when entering a roadway from a driveway?
Correct answer: Yield to traffic
Why: Drivers entering a roadway must yield.
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Q40. What is hydroplaning caused by?
Correct answer: Water on the roadway
Why: Hydroplaning occurs when water causes loss of tire traction.
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Q41. What does a yield sign require?
Correct answer: Slow and give right-of-way
Why: Yield signs require slowing and yielding when necessary.
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Q42. What should you do when approaching an intersection?
Correct answer: Be prepared to yield
Why: Being prepared to yield helps prevent crashes.
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Q43. What does a solid yellow line next to a broken yellow line mean?
Correct answer: Passing allowed only on broken-line side
Why: Passing is allowed only on the side with the broken line.
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Q44. What should you do if an animal suddenly appears in your lane?
Correct answer: Brake firmly and stay in lane
Why: Firm braking while staying in lane reduces risk.
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Q45. What does a green traffic signal indicate?
Correct answer: Proceed when safe
Why: A green light allows drivers to go when safe.
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Q46. What is the purpose of speed limits?
Correct answer: Improve safety
Why: Speed limits are designed to improve safety.
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Q47. What should you do when driving downhill on a steep grade?
Correct answer: Shift to a lower gear
Why: Lower gears help control speed downhill.
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Q48. What does a white triangular sign with a red border mean?
Correct answer: Yield
Why: This sign indicates a yield requirement.
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Q49. When must drivers yield to pedestrians?
Correct answer: At marked or unmarked crosswalks
Why: Drivers must yield to pedestrians in crosswalks.
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Q50. What is the safest action on icy roads?
Correct answer: Slow down and increase following distance
Why: Slowing down and increasing distance improves control on ice.