Idaho ITD Permit Practice Test 24
- Questions40
- Correct to pass34
- Passing score85%
- Minimum age15 years
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1. You are traveling at the same speed as a vehicle in the next lane, just behind its rear door. What should you do?
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Answer B: Change your speed so that you leave that driver's blind spot
That position is the classic blind spot. Slow slightly or move ahead so the other driver can see you before deciding to change lanes.
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2. A yellow diamond showing arrows arranged in a circle warns of
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Answer B: a circular intersection such as a roundabout ahead
The circular intersection warning sign announces a roundabout or traffic circle so drivers can slow down and prepare to yield to traffic already circulating.
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3. You are leaving a private driveway and entering a public street. What are you required to do?
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Answer B: Stop and yield to traffic on the street and to pedestrians on the sidewalk
A driver entering a roadway from a driveway, alley or private road must stop and yield to traffic on the roadway and to pedestrians on the sidewalk being crossed.
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4. What do yellow lines painted on a roadway separate?
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Answer D: Traffic moving in opposite directions
Yellow markings separate opposing streams of traffic, and they also mark the left edge of a divided highway or a one-way roadway.
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5. Which of the four blind spots around a tractor-trailer is the largest?
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Answer A: The one on the right side of the truck
A truck has no-zones on all four sides, and the right-side blind spot is the largest because it runs back along the trailer and reaches across more than one lane.
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6. You are turning left at an intersection and an oncoming bicyclist is approaching in the bike lane. What must you do?
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Answer B: Yield and complete the turn only after the bicyclist has passed
A bicycle in the roadway has the same right of way as a vehicle, so a left-turning driver must yield to an oncoming rider just as to an oncoming car.
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7. When should you adjust your seat, mirrors and steering wheel?
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Answer B: Before you start moving
Adjusting the driving position while moving takes your attention and often your hands away from driving. Make every adjustment while parked, every time.
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8. A white regulatory sign shows the silhouette of a truck inside a red circle with a diagonal slash. What does it mean?
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Answer A: Trucks are not allowed to use that road
The circle and slash over a symbol always means the movement or vehicle shown is prohibited, so trucks must keep off that roadway.
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9. You drive onto a section where the top layer has been milled off and the surface is grooved. How will it feel?
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Answer C: The steering may wander, so hold the wheel firmly and slow down
Grooves cut into the pavement tug at the tires and make the steering feel restless. A firm grip and a lower speed keep the vehicle tracking straight.
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10. You are stopped in traffic at a red light when an ambulance comes up behind you with its siren on. What is the correct action?
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Answer D: Stay put until you can move aside legally and safely
You must not run a red light or make an unsafe move to yield; wait, then pull to the side once the way ahead lets you do it safely.
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11. What is the main danger when you back out of an angle parking space?
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Answer A: Parked vehicles beside you hide the traffic coming along the aisle
You have to edge out blind past the vehicles on either side, so back very slowly and be ready to stop as soon as any part of the aisle comes into view.
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12. What should you do before you back out of your own driveway at home?
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Answer A: Walk around the vehicle and check behind it for children or objects
A small child, a bicycle or a toy can sit entirely inside the blind area behind a vehicle, and a walk-around is the only way to be sure it is clear.
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13. Every signal head at an intersection is flashing red in all directions. How should you treat the intersection?
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Answer C: As an all-way stop, stopping and then going in turn
Red flashing in every direction means each approach must stop, so the intersection works exactly like an all-way stop.
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14. Is it a good idea to shift into neutral and coast down a long hill to save fuel?
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Answer B: No, you lose engine braking and some control of the vehicle
In neutral the engine cannot help slow the vehicle, so the brakes do all the work and can overheat. Stay in gear so the drivetrain helps hold your speed.
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15. What must you do before changing lanes, in addition to signaling and checking your mirrors?
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Answer D: Glance over your shoulder to check the blind spot the mirrors do not cover
Mirrors leave an area beside and behind the vehicle that they cannot show, so a quick head check is needed before the vehicle moves sideways.
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16. The red brake warning light stays on after you release the parking brake. What should you do?
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Answer D: Stop safely and have the brakes checked before driving on
With the parking brake released, that light points to low fluid or a fault in one half of the braking system, which can leave you with very little braking.
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17. You are approaching the entry of a modern roundabout. Who must you yield to?
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Answer C: Traffic already circulating in the roundabout, which approaches from your left
Traffic in a United States roundabout circulates counterclockwise, so drivers entering must look left and yield to vehicles already in the circulating roadway.
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18. As a general rule, how far should you travel along a center two-way left-turn lane before you turn?
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Answer C: Only a short distance, just enough to slow down and wait for a gap
The center lane is for making or preparing a left turn, so you enter it only shortly before the turn and never travel along it as a through lane; several states set a specific limit such as 200 or 300 feet.
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19. A bicyclist ahead of you extends the left arm out with the forearm bent upward. What does that signal mean?
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Answer A: The bicyclist intends to turn right
Bicyclists use the same hand signals as drivers: left arm straight out means left, left arm bent up means right, and left arm bent down means stop or slow.
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20. What are front fog lights for?
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Answer D: Adding a low, wide beam close to the car when visibility is poor
Fog lights throw a low, wide beam under the fog, which is why they are mounted low and are used only in poor visibility.
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21. A front tire blows out at highway speed. What should you do?
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Answer B: Hold the wheel firmly, ease off the accelerator and slow gradually before leaving the road
A blowout pulls the vehicle toward the failed tire, and hard braking or sharp steering can turn that pull into a spin, so a firm grip and gradual slowing keep the vehicle straight.
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22. A driver passes this sign on an entrance ramp while merging onto a freeway. Who has priority?
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Answer B: The traffic already traveling on the freeway
The sign places the duty on the entering driver, who must adjust speed and fit into a gap without forcing through traffic to brake or swerve.
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23. A train has just cleared a crossing that carries two sets of tracks. What should you do?
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Answer B: Wait and look both ways for a second train
A passing train hides a second train on the other track, so wait until the signals stop and you can see that both tracks are clear.
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24. Why does safety guidance say a child should ride in the back seat rather than in front of an active passenger airbag?
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Answer D: Because the airbag inflates with enough force to injure a small child badly
Airbags deploy at very high speed and are sized for adults, so a child seated close to one can be badly hurt by the bag itself, which is why the back seat is recommended for children.
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25. Your light turns green and a driver on the cross street enters against a red. What should you do?
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Answer D: Hold back and let that vehicle go through
Giving up a right of way you are entitled to is the only way to avoid a crash with a driver who has already failed to yield.
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26. You feel drowsy, so you open a window and turn the radio up. What does that achieve?
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Answer B: Very little, because the drowsiness comes back
Cold air and loud music are not sleep, so the alerting effect lasts a minute or two and the driver is soon just as sleepy and closer to a lapse.
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27. You signaled a lane change and the signal did not switch itself off afterwards. Why does that matter?
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Answer B: Other drivers may act on a turn you do not intend to make
A signal left on tells other drivers you are about to turn, and someone may pull out in front of you. Cancel it as soon as the maneuver is finished.
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28. What makes a left turn protected rather than permissive?
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Answer B: Oncoming traffic is held by a red signal while you have a green arrow
A protected turn is one where the conflicting movements are stopped by their own signal, which is what the green arrow indicates.
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29. You are entering a marked work zone. What should you expect?
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Answer B: A reduced posted speed, narrowed or shifted lanes, and traffic that may stop suddenly
Work zones change the geometry of the road and can bring traffic to a halt without warning, so the posted work zone speed and increased following distance both apply.
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30. On loose gravel or deep fresh snow, how does an antilock system affect the stopping distance?
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Answer D: It can lengthen it, although you keep the ability to steer
On loose surfaces a locked wheel piles up a wedge of gravel or snow that helps it stop, so the antilock stop can be longer even though steering still works.
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31. You have a small extinguisher and a fire has started under the hood. What is the safe way to use it?
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Answer B: Release the latch and spray through the gap without raising the hood at all
Opening the hood feeds the fire a rush of air, so spraying through the gap at the base of the flames is both safer and more effective.
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32. The lane you are in is marked with a straight arrow and a right-turn arrow together. What does that mean?
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Answer D: Drivers in that lane may either go straight or turn right
A lane marked with two arrows serves both movements, so a driver in it may take either one.
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33. A friend who has been drinking insists on driving home. What is the right thing to do?
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Answer B: Take the keys and arrange a sober ride, even if the friend objects
An impaired driver is dangerous on any street at any speed, and coffee does not lower blood alcohol. Keeping the keys and finding another way home is the only safe choice.
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34. You realize at the last moment that you have passed the street where you meant to turn. What should you do?
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Answer D: Keep going and turn around where it is safe and legal
A missed turn is a minor inconvenience; braking suddenly, backing up or turning across traffic to recover it causes crashes.
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35. A ball rolls into the street from between parked cars ahead of you. What should you expect and do?
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Answer A: Expect a child to follow it and be ready to stop
A ball is usually followed by a child who is watching the ball and not the traffic. Slow down and be prepared to stop immediately.
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36. A driver sees this sign on a quiet road with no other traffic in either direction. What is the correct response?
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Answer C: Slow down, look and listen for a train, and be ready to stop
The sign gives advance notice of a highway-rail grade crossing, so the driver reduces speed, checks both directions along the tracks and keeps enough room to stop short of the rails.
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37. A driver stopped at a red signal wants to turn right and this sign is posted at the corner. What is permitted?
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Answer A: Nothing: the turn is barred whether the signal is red or green
The restriction works independently of the signal, so the usual permission to turn right after stopping at a red light does not exist where this sign is posted.
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38. How does Idaho classify a third DUI conviction within 10 years?
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Answer C: As a felony
A third or subsequent DUI conviction within 10 years is a felony in Idaho and carries a mandatory jail sentence of 30 days to ten years.
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39. At an intersection the signal flashes red toward you and flashes yellow toward the cross street. Who must yield?
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Answer D: You must, because the flashing red faces your road
A flashing red means stop and yield like a stop sign, while a flashing yellow lets the other road proceed with caution.
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40. A driver behind you on a two-lane road clearly wants to pass. Why should you not wave that driver past?
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Answer B: You cannot see the whole road ahead for them and they may rely on your signal
Waving another driver out invites them to trust your judgment of a road you cannot see well enough, and the decision to pass belongs to the driver making it.