20 questions from the Idaho driver handbook. Pick an answer to see the rule behind it.
1. When is it permissible to cross double solid yellow lines?
Answer: When turning left into or out of a driveway or entrance to a business. The handbook specifies that crossing double solid yellow lines is allowed specifically for turning left into or out of driveways or business entrances.
Idaho driver handbook, page 58: “A driver can cross a double yellow line when turning left into or out of a driveway or entrance to a business.”
2. What is the consequence of knowingly providing false information on a driver’s license, ID card, or permit application?
Answer: Your credential will be canceled. The handbook specifies that providing false information results in the cancellation of the credential.
Idaho driver handbook, page 13: “If you knowingly provide false information on a driver’s license, ID card, or permit application, you are subject to prosecution for perjury and your credential will be canceled.”
3. At an unmarked intersection with no signs or signals, if two vehicles arrive at the same time, which vehicle must yield?
Answer: The vehicle on the left must yield to the vehicle on the right. The handbook states that in uncontrolled intersections, the driver on the left yields to the driver on the right.
Idaho driver handbook, page 75: “At an unmarked or uncontrolled intersection (no signs or signals), if two vehicles arrive at the same time, the vehicle on the left must yield to the vehicle on the right.”
4. How are warning signs in a work zone typically identified according to the handbook?
Answer: Orange and black colors. The handbook states that warning signs within work zones use orange and black colors.
Idaho driver handbook, page 46: “Warning signs in a work zone are orange and black.”
5. Why should a driver avoid sounding their horn when approaching a horseback rider?
Answer: To avoid frightening the animal and causing an accident. The handbook advises against using the horn specifically to prevent startling the horse, which could lead to an accident.
Idaho driver handbook, page 98: “Never sound your horn because you may frighten the horse and cause an accident.”
6. What is the requirement for an unattended vehicle left off the traveled portion but on the paved portion of a highway during darkness?
Answer: It must be removed prior to darkness. The handbook states that unattended vehicles on the paved portion must be removed before darkness falls to avoid being towed.
Idaho driver handbook, page 93: “Vehicles, if left unattended, must be removed prior to darkness or be subject to towing at the owner’s expense.”
7. When parking parallel to the curb on a public road, how close must your vehicle be to the curb?
Answer: Within 18 inches. The handbook specifies that vehicles must be parked within 18 inches of the curb when parallel parking.
Idaho driver handbook, page 80: “When parking on a public road, you must park parallel to and within 18 inches of the curb or edge of the roadway, facing in the same direction as traffic on your side of the road.”
8. What should you do if you become stranded in heavy snow while driving?
Answer: Stay with your vehicle. The handbook states that staying with the vehicle is safer because leaving it can lead to getting lost and freezing.
Idaho driver handbook, page 115: “If you get stranded, stay with your vehicle if heavy snow is falling. Most deaths occur when people leave their car, get lost, and freeze.”
9. When driving in areas where children are likely to be present, such as near schools or playgrounds, what action should a driver take?
Answer: Slow down. The handbook directly instructs drivers to slow down when in areas where children are likely to be present.
Idaho driver handbook, page 96: “You see some children playing or walking near the street, or you are in an area where children are likely to be (schools, neighborhoods, playgrounds, etc.). Slow down”
10. What should a driver do if they accidentally enter the wrong entrance ramp?
Answer: Continue to the next exit. The handbook instructs drivers to continue to the next exit rather than reversing or turning around through the median.
Idaho driver handbook, page 84: “If you enter the wrong entrance by mistake, never try to back up or turn around through the median.”
11. What is the maximum speed limit on rural interstate highways where designated and weather permits?
Answer: 80 miles per hour. The handbook states that vehicles may travel up to 80 mph on rural interstate highways under specified conditions.
Idaho driver handbook, page 85: “vehicles may travel up to 80 miles per hour on rural interstate highways and 65 on urban interstates highways, unless otherwise posted.”
12. What is the recommended action if you think your car has started to hydroplane?
Answer: Maintain a steady speed and keep moving in a straight line. The handbook advises maintaining steady speed and straight-line movement to recover traction during hydroplaning.
Idaho driver handbook, page 111: “Maintain a steady speed and keep moving in a straight line.”
13. According to the handbook, how far behind a snowplow truck should you remain if you are driving at 30 miles per hour?
Answer: Six car lengths. The rule specifies two car lengths for every 10 mph, so at 30 mph (three sets of 10), the required distance is six car lengths.
Idaho driver handbook, page 110: “Remain two car lengths behind snowplow trucks for every 10 miles per hour you drive.”
14. Why should you avoid pumping the brake pedal when using a vehicle with ABS?
Answer: It defeats the system's design and increases stopping distance. Pumping the brakes interferes with the automatic function of ABS, reducing its effectiveness and lengthening the stopping distance.
Idaho driver handbook, page 116: “Do Not Pump the Brake Pedal as this will defeat the system’s design, reduce the effectiveness of the ABS, and increase the distance required to stop the vehicle.”
15. When entering a freeway, which traffic must you yield to?
Answer: Traffic already on the highway. Drivers merging onto the freeway are required to yield to vehicles that are already traveling on the highway.
Idaho driver handbook, page 84: “Remember, you must yield to the traffic already on the highway.”
16. How should a driver treat an intersection when the traffic signal is not functioning?
Answer: Treat the intersection as a four-way stop. The handbook provides a specific rule that non-functioning signals require drivers to treat the intersection as a four-way stop.
Idaho driver handbook, page 56: “Whenever a traffic signal is not functioning, treat the intersection as a four-way stop.”
17. When is it required to turn on your headlights during the daytime?
Answer: When vision is reduced to 500 feet or less. The handbook states that daytime headlights are required when visibility drops to 500 feet or less.
Idaho driver handbook, page 110: “You are required to turn on your headlights in the daytime when vision is reduced to 500 feet or less.”
18. If a load or trailer obscures the driver's view through the rear window, what additional equipment is required?
Answer: Two additional mirrors, one on each side. When the rear view is blocked, the vehicle must be equipped with two additional mirrors, placed on both the left and right sides.
Idaho driver handbook, page 40: “If a load or trailer obscures the driver’s normal view through the rear window, the vehicle must have two additional mirrors, one on each side of the vehicle.”
19. What is the first step in the five-step procedure for starting from the curb or changing lanes?
Answer: Check mirrors. The numbered list in the handbook identifies checking mirrors as the first step in the procedure.
20. How should a driver complete a left turn at a thru-turn intersection?
Answer: Continue through the intersection, perform a U-turn downstream, return, and turn right. The handbook describes a specific sequence: go straight, U-turn downstream, return, and then turn right to achieve the left-turn effect.
Idaho driver handbook, page 63: “To complete a left turn in a thru-turn intersection, continue through the intersection, perform a U-turn downstream at the next traffic signal from the traffic signal/intersection you just went through, as directed by lane markings, head back toward the intersection, and make a right turn.”