Idaho ITD Permit Practice Test 10
Test 10 of 10. Pick an answer for each question to see if it is right and why; your score appears at the end. You need 34 correct answers to pass, the same ratio as the real Idaho test.
- Questions40
- Correct to pass34
- Passing score85%
- Minimum age15 years
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1. You are towing a loaded trailer for the first time. How should you drive?
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Answer A: Slow earlier and keep a longer following gap
A trailer adds weight and length, so stopping takes longer and every maneuver needs more room and more warning.
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2. You realize you have turned the wrong way onto a one-way street. What should you do?
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Answer A: Pull to the right, stop, and back into the street you came from when clear
Get out of the traffic stream first: pull right and stop, then back out into the street you came from once you can see it is safe.
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3. Where designated and not otherwise posted, what is the maximum speed on Idaho urban interstate highways?
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Answer A: 65 miles per hour
Idaho allows up to 80 miles per hour on rural interstates where designated but holds urban interstates to 65 unless otherwise posted.
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4. A raised area crosses the roadway and carries a series of white markings on its face. What are those markings for?
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Answer A: To make the hump visible so drivers slow for it
Speed hump markings warn drivers that the pavement rises, which matters most at night or when the hump is in shadow.
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5. Your passengers are being noisy and you are losing concentration. What should you do?
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Answer B: Ask them to settle down, or pull over safely until they do
The driver is responsible for the conditions inside the vehicle, and stopping is always better than driving distracted.
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6. A vehicle in the lane beside you has stopped at a crosswalk. What should you do?
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Answer C: Stop as well, because that driver may be yielding to a pedestrian you cannot see
The stopped vehicle hides the crosswalk from you, and passing it is a leading cause of collisions with pedestrians who are already crossing.
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7. Can a driver be charged with impaired driving after taking a legal over the counter medicine?
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Answer C: Yes, if the medicine impairs the ability to drive safely
Impaired driving laws cover any substance that affects driving, including cold remedies, allergy pills and sleep aids sold without a prescription.
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8. Another driver has pulled out to pass you. What should you do?
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Answer A: Stay in your lane, keep your speed steady or ease off, and let the pass finish
Accelerating while being passed forces the other driver to stay in the opposing lane longer, so the safe response is to hold or slightly reduce speed and stay right.
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9. Can an Idaho driver break the basic rule law while traveling below the posted speed limit?
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Answer C: Yes, if the speed is too slow for conditions and impedes the safe flow of traffic
Idaho's basic rule requires a speed that is reasonable and prudent, so driving too slowly for conditions and impeding the safe flow of traffic breaks the law even below the posted limit.
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10. Where among these is parking specifically prohibited?
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Answer A: On a bridge, in a tunnel or on railroad tracks
Bridges and tunnels have no safe refuge and cannot be widened, and a vehicle left on railroad tracks cannot be avoided by an approaching train.
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11. Your steering suddenly feels light and unresponsive as you drive through standing water. What should you do first?
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Answer A: Ease off the accelerator and keep the steering wheel pointed straight
Those symptoms mean the tires are riding on a film of water, and gently lifting off the accelerator lets them settle back onto the pavement. Hard braking or sudden steering while hydroplaning can start a skid.
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12. An ambulance has just gone by and traffic starts to move again. Why should you wait a moment before pulling back out?
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Answer B: Another emergency vehicle may be following the first one
Emergency calls often bring several vehicles, so check that nothing else is coming before you rejoin the traffic lane.
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13. You hear a bang and one of the front tires deflates while you are on the highway. What happens to the vehicle?
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Answer D: It pulls strongly toward the side that failed
The collapsed tire drags heavily on that corner, so the vehicle veers toward it. Hold the wheel firmly, keep your line and let the speed fall before leaving the road.
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14. Why are sign shapes and colors standardized across the whole country?
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Answer D: So a driver knows the kind of message before reading it
Uniform shapes and colors let a driver classify a sign as regulatory, warning or guide from a distance, before the legend can be read.
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15. When is switching traction control off sometimes useful?
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Answer A: When you need spinning wheels to rock out of deep snow or mud
Rocking a stuck vehicle free needs the wheel spin that the system normally prevents. Switch it back on as soon as you are moving again.
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16. A center lane is marked with a broken yellow line on each side and is controlled by overhead lane signals. How is that lane used?
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Answer A: It carries traffic one way or the other according to the signals
A reversible lane is marked with broken yellow lines on both sides and its direction of travel is set by the lane control signals above it.
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17. The electric windows will not work as your vehicle sinks in water. What is the best option?
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Answer C: Break a side window with a hard, pointed object and climb out through it
Side windows are tempered glass and can be broken, while the laminated windshield cannot, and water pressure holds the doors shut.
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18. A school crossing guard has returned to the curb but two children are still walking across the road. When may you go?
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Answer C: Only after the children have reached the far sidewalk
The guard leaving the road does not end your duty; you stay stopped until every child is clear of the roadway.
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19. A driver moves into the space you were keeping ahead of you. What should you do?
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Answer D: Ease off and rebuild the gap in front of you
Losing a following gap is common in traffic; the answer is simply to drop back and recreate it rather than drive too close.
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20. What is the correct order of a pass on a two-lane road?
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Answer A: Check ahead and behind, signal left, move out, accelerate past, signal right and return
A pass begins with the decision that the road is clear and ends with a signaled return, and each step warns other drivers before the vehicle moves.
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21. Which of these is never a legal place to park?
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Answer C: In a crosswalk, on a sidewalk or within an intersection
Crosswalks, sidewalks and intersections must stay clear so that pedestrians can cross and drivers can see approaching traffic.
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22. On which Idaho road may a driver continue past a stopped school bus that is displaying flashing red lights?
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Answer D: A highway of four or more lanes with two lanes each way, traveling the other way
Idaho requires traffic to stop for a school bus showing flashing red lights, except for drivers traveling in the opposite direction on a highway of four or more lanes with two lanes going each way.
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23. Idaho equipment law sets a stopping standard for foot brakes. What is it?
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Answer B: A stop from 20 miles per hour on dry pavement within 25 feet
Idaho requires foot brakes to stop a vehicle traveling 20 miles per hour on dry pavement within 25 feet, while the emergency or parking brake must do it within 55 feet.
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24. In plain words, what is understeer?
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Answer B: The vehicle keeps going straight even though the wheels are turned
Understeer means the front tires have run out of grip, so the vehicle takes a wider line than the one you steered.
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25. How can you keep space at the sides of your vehicle in heavy traffic?
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Answer D: Drive in the gaps between the other vehicles rather than beside them
Travelling in the open spaces rather than alongside others keeps a way out open on at least one side.
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26. The route marker used for an Interstate highway is a shield with
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Answer A: white numerals on a blue field under a red band carrying the word INTERSTATE
The Interstate route marker is a cutout shield with a white border, the word INTERSTATE in white on red across the top and the route number in white on blue.
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27. Traffic is backed up just past the exit you want to use at a single-lane roundabout. What should you do?
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Answer D: Wait at the yield line until you can pass through and exit
You must not enter a roundabout unless you can clear it, because stopping inside blocks every other entry.
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28. What minimum visual acuity must an applicant meet at an Idaho vision screening?
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Answer D: 20/40 in at least one eye, with or without corrective lenses
Idaho screens vision at every license transaction and requires at least 20/40 in one eye, with or without corrective lenses; wearing lenses during the screening adds a lens restriction.
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29. The divided highway ends warning sign means that
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Answer D: the median separating the directions ends and the road returns to two-way operation
Beyond this sign opposing traffic is no longer separated by a median, so the driver must keep right and expect vehicles approaching in the adjacent lane.
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30. What happens when alcohol is combined with another drug that also affects the nervous system?
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Answer B: Impairment is often far greater than either one alone would produce
Combined substances can multiply each other's effects, producing impairment well beyond what a driver would expect from either one taken separately.
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31. How often should the spare tire be checked?
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Answer C: Regularly, because a spare loses pressure while it sits unused
Spares lose air slowly over months, and a flat spare is useless at the moment you need it.
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32. A pedestrian steps off the curb without looking your way. What should you assume?
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Answer B: That the person has not seen you at all, and be ready to stop for them
Defensive driving means assuming you have not been seen until there is clear evidence that you have.
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33. At what distances must Idaho headlamps be dimmed?
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Answer D: 500 feet before meeting an oncoming vehicle and 200 feet before overtaking one
Idaho requires high beams to be dimmed 500 feet before meeting another vehicle and 200 feet before overtaking one.
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34. You are waiting to turn left across two oncoming lanes when a driver in the near lane stops and waves you through. What should you do?
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Answer D: Turn only after checking the far lane yourself
The waving driver cannot give away the right of way of the traffic in the second lane, which may not be stopping at all.
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35. You are towing a trailer and turning right at an intersection. What must you allow for?
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Answer D: The trailer cuts the corner, so swing wider than usual
A trailer follows a shorter path than the towing vehicle, so its wheels track inside your line and can mount the curb unless you take the turn wide.
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36. How does alcohol affect a driver's ability to handle several things at once?
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Answer B: It cuts the ability to divide attention between tasks
Driving means watching the road, the mirrors and the instruments together, and alcohol narrows attention so that one of those tasks is dropped without the driver noticing.
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37. A yellow diamond showing a truck is posted beside a quarry entrance. What is it warning about?
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Answer A: Trucks turning onto the highway from that entrance
A truck crossing or trucks entering sign is used where heavy vehicles pull onto the road from a site, and they accelerate slowly once they are on it.
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38. What is true about an airbag once it has inflated in a crash?
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Answer B: It must be replaced by a technician before the car is driven any further
An airbag is a single use device, and the module and often the belts must be replaced before the vehicle protects anyone again.
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39. What will the driver have to do at the point this sign refers to?
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Answer C: Slow down and let conflicting traffic go first, stopping if that is what it takes
Further along, the driver has to let conflicting traffic and pedestrians go first, reducing speed and stopping whenever that is necessary to avoid interfering with them.
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40. Which clue tells you that a parked vehicle is about to pull into traffic?
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Answer D: Exhaust smoke, brake lights, front wheels turned out or a driver in the seat
A running engine, lit brake lights, turned wheels or a person behind the wheel all mean the vehicle may move. Slow down and give it room.