Question When driving at 60 mph, a driver's field of vision is: Answers Two-thirds of what it is when the vehicle is stationary. One-fifth of what it is when the vehicle is stationary. Three-fifths of what it is when the vehicle is stationary. Four-fifths of what it is when the vehicle is stationary. Explanation As your speed increases, your field of vision decreases. When driving 60 mph, your field of vision is reduced to one-fifth of what your field of vision is when your vehicle is stationary. Pass your DMV Written Test with flying colors Take me to the cheat sheet Texas This questions appears in the following tests: Texas Practice Test 22 Texas Practice Test 23