New York DMV Permit Written TestSafe Driving PracticesMedium
A driver is traveling on a multi-lane highway and needs to change lanes. They check their mirrors, signal, and then turn their head to check their blind spot. This head turn is commonly known as a 'head check' or 'shoulder check.' Why is this action crucial even after checking mirrors?
- ATo ensure the signal light is working properly.
- BTo see if the speed limit has changed.
- CTo confirm the lane markings are continuous.
- DMirrors have blind spots that can conceal vehicles.
Show answer & explanationAnswer & explanation
Correct answer: D. Mirrors have blind spots that can conceal vehicles.
All mirrors have blind spots, areas around the vehicle that are not visible in the mirrors. A quick head check over the shoulder is essential to visually confirm that no vehicle, especially a smaller one like a motorcycle or a car in an adjacent lane's blind spot, is present before changing lanes.
Why the other options are wrong
- A. The head check is not for signal light verification; that's done by instrument panel indicators.
- B. Speed limit changes are indicated by signs, not checked during a lane change maneuver.
- C. Lane markings are visible in mirrors or directly ahead, not the primary purpose of a blind spot check.
Blind Spot Check
A quick head turn (shoulder check) is crucial before changing lanes to verify no vehicles are hidden in mirror blind spots.
- All vehicles have blind spots.
- Mirrors do not show all areas.
- Prevents side-swipe collisions.
Memory trick: Mirror, signal, then a quick peek, or a hidden car you might seek!