Question

1. you will generally have ample time and space to make decisions and control your vehicle if you maintain a visual lead of: a. 30 to 40 seconds. b. 20 to 30 seconds. c. 10 to 20 seconds. d. 5 to 10 seconds. 11. which sense is most critical to safe driving? a. hearing. b. smell. c. seeing. d. touch. 12. central vision is: a. a four - degree cone that makes up five percent of a drivers total visual field. b. the primary visual function employed in targeting. c. used to judge depth and position. d. conical in shape around the other vision fields. 13. peripheral vision: a. detects color and motion. b. provides information about stationary objects that could be threats along the intended path of travel. c. is strongly affected by drugs, fatigue and speed of travel. d. all of the above are correct. 14. when driving, central vision is used to: a. provide detail of objects and driving conditions. b. position the vehicle in the proper lane. c. gather peripheral information. d. maintain a constant speed. 15. fringe vision: a. provides vision beyond your peripheral vision. b. is the primary visual function employed in targeting. c. provides information about lane position and objects to the travel path. d. does not detect detail, only color and movement.

Explanation:

1. Maintaining a visual lead of 10 - 20 seconds gives enough time and space for decision - making and vehicle control.
2. Vision is crucial for safe driving as it helps in observing the road, other vehicles, and obstacles.
3. Central vision is a four - degree cone that makes up a small part of the total visual field and is used for targeting.
4. Peripheral vision detects color and motion, provides information about stationary objects that could be threats, and is affected by drugs, fatigue, and speed.
5. Central vision is used to provide detail of objects and driving conditions and to position the vehicle in the proper lane.
6. Fringe vision provides vision beyond peripheral vision and gives information about lane position and objects relative to the travel path.

Answer:

1. b. 10 to 20 seconds
2. c. Seeing
3. a. A four - degree cone that makes up five percent of a driver's total visual field.
4. d. All of the above are correct.
5. a. Provide detail of objects and driving conditions; b. Position the vehicle in the proper lane.
6. c. Provides information about lane position and objects relative to the travel path.