On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be A. more than the pressure on inner wheels B. less than the pressure on inner wheels C. equal to the pressure on inner wheels D. zero

The correct answer is A. more than the pressure on inner wheels.

When a car is on a horizontal curve, the outer wheels have to travel a greater distance than the inner wheels in the same amount of time. This is because the outer wheels are further away from the center of the curve. To compensate for this, the outer wheels have to travel faster than the inner wheels. This causes the outer wheels to experience more centrifugal force than the inner wheels. Centrifugal force is a force that pushes objects away from the center of a circle. The greater the centrifugal force, the greater the pressure on the outer wheels.

Option B is incorrect because the outer wheels do not experience less pressure than the inner wheels. Option C is incorrect because the outer wheels do not experience the same pressure as the inner wheels. Option D is incorrect because the pressure on the outer wheels is not zero.