Question This sign means: Answers Trucks entering. Truck exit only. Steep downgrade ahead. Explanation This sign warns that a steep downgrade is ahead on the road. Drivers should check their brakes. This questions appears in the following tests: Alabama Motorcycle Practice Test 42 Arkansas Motorcycle Practice Test 11 California Motorcycle Practice Test 98 Delaware Motorcycle Practice Test 104 Georgia Motorcycle Practice Test 57 Idaho Motorcycle Practice Test 66 Illinois Motorcycle Practice Test 54 Kansas Motorcycle Practice Test 57 Nebraska Motorcycle Practice Test 79 Ohio Motorcycle Practice Test 95 South Carolina Motorcycle Practice Test 192 South Dakota Motorcycle Practice Test 76 Tennessee Motorcycle Practice Test 39 Virginia Motorcycle Practice Test 22 Wisconsin Motorcycle Practice Test 148 Wyoming Motorcycle Practice Test 204