2024 SD CDL Practice Test: Class A - Test 3
Based on
2024 SD CDL Handbook
6. When trying to figure out how much space you should have in front of your vehicle, a good general rule to follow is that if you are travelling below 40 mph you need at least one second for each 10 ft. of your vehicle's length. If you are traveling at greater speeds you should add how many seconds for safety?
A
1 second for each 10 feet of vehicle length at speeds below 60 mph.
B
1 second for each 20 feet of vehicle length at speeds below 40 mph.
C
1 second for each 10 feet of vehicle length at speeds below 40 mph.
D
1 second for each 20 feet of vehicle length at speeds below 60 mph.