Texas State Inspection Practice

A brake test should be performed at a moderate speed in order to properly assess the braking system of a vehicle. Going too slow may not provide enough pressure on the brakes, while going too fast may result in an unsafe stopping distance. Option A is too slow and may not accurately test the brakes. Option C and D are too fast and could be dangerous. Therefore, B, with a moderate speed of 20 mph, is the most suitable option for a proper brake test.