The real South Dakota knowledge test is the DMV exam used for a learner permit. This page contains one fixed 20 question slice of the full free 180 question bank, with an explanation after each answer.
Sample question from test 9
signals-markings
A South Dakota traffic signal is not functioning properly and you face a green signal. What may you do?
- Proceed with caution
- Stop as if at a stop sign, then wait for a police officer
- Turn right only
- Wait until the signal is repaired
Answer: Proceed with caution. South Dakota law spells out what to do at a malfunctioning signal by the color you face. A green signal may proceed with caution, a yellow signal may also proceed with caution, and a red or completely unlighted signal must stop in the same manner as at a stop sign. Treating a green signal as a stop sign is not required, and waiting for repairs is not the rule. Because other drivers may be unsure what the signal means, slow down, look in every direction, and be ready to yield.