Idaho Permit Test (ITD Knowledge Test) — All Questions
22 questions
A red, eight-sided (octagonal) sign means you must:
- a.Slow down and yield
- b.Stop only if pedestrians are present
- c.Make a complete stop, then proceed when it is safe✓
- d.Merge right
The octagon is reserved for STOP; stop at the line or crosswalk, then go when it is safe. (Idaho Driver's Manual, traffic signs)
A yellow, diamond-shaped sign is used to:
- a.Mark a highway exit
- b.Warn of a hazard or change in the road ahead✓
- c.Post the speed limit
- d.Show the way to services
Yellow diamonds are warning signs for curves, merges, crossings, and other conditions ahead. (Idaho Driver's Manual, warning signs)
A flashing red traffic light at an intersection means:
- a.Stop, then proceed when safe as at a stop sign✓
- b.The signal is broken
- c.Go without stopping
- d.Slow down without stopping
A flashing red light has the same meaning as a stop sign: stop, then go when it is safe. (Idaho Driver's Manual, traffic signals)
A solid white line along the edge of the travel lane marks:
- a.A bike-only lane
- b.The right edge of the roadway✓
- c.A passing zone
- d.The center of the road
A solid white edge line marks the right boundary of the travel lane; stay to its left. (Idaho Driver's Manual, pavement markings)
A downward-pointing triangle sign means:
- a.One-way traffic
- b.Stop and wait for a signal
- c.No entry
- d.Yield the right-of-way, slowing or stopping if needed✓
The inverted triangle is a YIELD sign; slow down and give the right-of-way to traffic and pedestrians. (Idaho Driver's Manual, regulatory signs)
At a four-way stop where two vehicles arrive at the same time, right-of-way goes to:
- a.The vehicle turning left
- b.The larger vehicle
- c.The driver on the left
- d.The driver on the right✓
When drivers arrive together at a four-way stop, the one on the left yields to the one on the right. (Idaho Driver's Manual, right-of-way)
When entering a roundabout, you should:
- a.Yield to traffic already in the roundabout and enter to the right✓
- b.Stop fully before entering every time
- c.Travel clockwise
- d.Enter at highway speed
Yield to pedestrians and to vehicles already circulating, then enter the roundabout to the right. (Idaho Driver's Manual, roundabouts)
You are turning left at a green light with oncoming traffic. You must:
- a.Expect them to slow for you
- b.Turn before they reach you
- c.Yield to oncoming vehicles and pedestrians until it is safe✓
- d.Flash your lights and go
A green light does not protect a left turn; yield to oncoming traffic and pedestrians first. (Idaho Driver's Manual, turning)
When an emergency vehicle approaches with lights and siren, you should:
- a.Move into the left lane
- b.Pull to the right and stop until it passes✓
- c.Stop where you are in the lane
- d.Keep your speed
Pull to the right edge of the road, clear of intersections, and stop until the emergency vehicle passes. (Idaho Driver's Manual, emergency vehicles)
On a multilane highway, slower traffic should:
- a.Straddle two lanes
- b.Keep to the right except when passing✓
- c.Stay in the left lane
- d.Use the shoulder
Idaho follows keep-right rules; use the left lane mainly to pass and return right when finished. (Idaho Driver's Manual, lane use)
A dependable way to keep a safe following distance is to:
- a.Keep at least a three-second gap and more in poor conditions✓
- b.Stay one car length back at any speed
- c.Follow closely to prevent cut-ins
- d.Copy the brake lights ahead
The three-second rule scales with speed; add time in rain, snow, fog, or dust. (Idaho Driver's Manual, following distance)
When sharing the road with a motorcycle, you should:
- a.Assume it stops instantly
- b.Share the lane side by side
- c.Allow it a full lane and check your blind spots✓
- d.Pass within inches
Motorcycles are entitled to a full lane and are easy to overlook; give them room and check blind spots. (Idaho Driver's Manual, sharing the road)
A school bus ahead shows flashing red lights and an extended stop arm. You must:
- a.Slow to 20 mph and continue
- b.Stop and stay stopped until the lights stop flashing and the arm folds✓
- c.Proceed if no children are visible
- d.Pass slowly on the left
Stop for a school bus displaying flashing red lights and a stop arm, and stay stopped until it withdraws them. (Idaho Driver's Manual, school buses)
Idaho's seat belt law requires that:
- a.Every driver and passenger be properly restrained, with child safety seats for young children✓
- b.Belts are optional for adults
- c.Only the driver buckle up
- d.Only children use restraints
All occupants must be properly restrained, and younger children must ride in an appropriate child safety seat. (Idaho Driver's Manual, occupant protection)
Unless otherwise posted, the speed limit in an Idaho school zone when children are present is commonly:
- a.45 mph
- b.20 mph✓
- c.10 mph
- d.35 mph
School zones are commonly posted at 20 mph when children are present; obey any posted limit. (Idaho Driver's Manual, school zones)
Idaho's basic speed rule means you must:
- a.Keep pace with the fastest traffic
- b.Always drive the posted maximum
- c.Drive at a speed that is reasonable and prudent for conditions✓
- d.Never exceed 45 mph
You must choose a speed that is safe for actual conditions, which may be below the posted limit. (Idaho Driver's Manual, speed)
In rain, snow, fog, or blowing dust you should:
- a.Reduce speed and increase your following distance✓
- b.Keep your normal speed
- c.Speed up between gusts
- d.Follow closely to see better
Reduced traction and visibility call for slower speeds and more space to stop. (Idaho Driver's Manual, adjusting to conditions)
The highest speed limit posted on some Idaho rural interstate sections is:
- a.80 mph✓
- b.70 mph
- c.55 mph
- d.65 mph
Idaho posts up to 80 mph on certain rural interstate segments; always obey the posted sign, which sets the legal maximum. (Idaho Driver's Manual, speed limits)
In Idaho, a driver 21 or older is legally impaired (DUI) at a blood alcohol concentration of:
- a.0.08 percent✓
- b.0.12 percent
- c.0.05 percent
- d.0.10 percent
The adult legal limit is 0.08 percent BAC; you can still be charged below that if impaired. (Idaho Driver's Manual, impaired driving)
For drivers under 21, Idaho's alcohol limit is:
- a.No limit with a parent present
- b.0.05 percent
- c.The same 0.08 as adults
- d.0.02 percent (zero tolerance)✓
Idaho applies a 0.02 percent BAC zero-tolerance limit to drivers under 21. (Idaho Driver's Manual, underage drinking and driving)
In Idaho, the minimum age to obtain a Supervised Instruction Permit (SIP) is:
- a.16 years old
- b.17 years old
- c.15 years old
- d.14 and a half (14 1/2) years old✓
Idaho allows a Supervised Instruction Permit at 14 1/2 years of age, earlier than most states. (Idaho Driver's Manual, graduated licensing)
Under Idaho's graduated licensing, a driver under 16 may generally:
- a.Drive only during daylight unless accompanied by a licensed adult 21 or older✓
- b.Drive alone at night immediately
- c.Drive any time with no restrictions
- d.Carry unlimited passengers
Drivers under 16 may drive only in daylight unless a licensed adult 21 or older is in the front seat, and passengers under 17 are limited in the first months. (Idaho Driver's Manual, graduated licensing)