Idaho Permit Practice Test

What does a flashing red traffic signal mean?

Explanation. Treat a flashing red signal exactly like a stop sign — come to a complete stop, then proceed when safe.

When merging onto a freeway from an entrance ramp, you should:

Explanation. Use the entire ramp to accelerate to freeway speed, then merge into a gap. Stopping on the ramp is dangerous and illegal in most states.

On a freeway with three or more lanes, slower vehicles should generally use:

Explanation. The left lane is for passing on most freeways. Slower traffic should keep right except to pass.

Driving slower than other traffic on a freeway is:

Explanation. Driving too slowly on a freeway can be a hazard. Most states have minimum speeds (typically 40 mph) and require slow drivers to use the right lane.

A solid white line on the right edge of the road marks:

Explanation. Solid white edge lines mark the right boundary of the traveled lane. Crossing them generally means you have left the lane.

A red painted curb means:

Explanation. Red curbs prohibit stopping, standing, and parking — used at fire hydrants, fire lanes, and bus stops.

Hydroplaning occurs when:

Explanation. Hydroplaning is when tires skim on top of standing water. Ease off the gas and do not brake suddenly — let the car slow until tires regain contact.

A safe following distance increases when:

Explanation. Increase following distance when following a motorcycle, towing a trailer, driving in rain or snow, or in heavy traffic.

What does ABS (Anti-lock Braking System) do?

Explanation. ABS prevents wheels from locking up during hard braking, which lets you continue to steer. Apply firm, continuous pressure — do not pump.

When passing through a work zone, you should:

Explanation. Work-zone speed limits are regulatory and enforceable. Many states double fines for speeding in work zones, even when workers are not visible.

When parking uphill on a road with a curb, your front wheels should be:

Explanation. Uphill with a curb: turn wheels AWAY from the curb (left). If brakes fail, the car rolls back and the rear tire stops it on the curb.

When applying for your Idaho permit, you must bring:

Explanation. Idaho requires proof of identity (birth certificate or passport), Social Security number, and two proofs of Idaho residency. Bring originals, not copies.

Children under a certain age and weight must ride in:

Explanation. Every state requires child safety seats; specific age, weight, and height thresholds vary, but children under 8 typically need a booster.

The "two-second rule" or "three-second rule" measures:

Explanation. Both rules measure following distance — the time gap between you and the vehicle ahead. Three seconds is the modern recommendation.

Brown background signs typically indicate:

Explanation. Brown signs mark parks, historic sites, monuments, and other recreational or cultural attractions.

When parking on a road with no curb (uphill or downhill), your front wheels should be:

Explanation. Without a curb, always turn wheels toward the shoulder so a runaway car rolls off the road instead of into traffic.

You are at an intersection waiting to make a left turn on a green light. You must:

Explanation. A green ball (no arrow) means you may turn left only after yielding to oncoming traffic and pedestrians in the crosswalk.

A round yellow sign with a black "RR" symbol is:

Explanation. The round yellow railroad advance warning sign tells you a railroad crossing is ahead. The actual crossing is marked by the white X-shaped crossbuck.

A pennant-shaped sign on the LEFT side of the road tells you:

Explanation. The yellow pennant is the "No Passing Zone" sign. It is the only sign posted on the left side of the road.

The legal BAC limit for adult drivers (age 21 and older) in nearly every state is:

Explanation. 0.08% is the per-se DUI limit for adults in 49 states (Utah is 0.05%). Above this, you are legally impaired regardless of how you feel.