Practice question The standard hand signal for a LEFT turn is: Left arm straight out to the sideLeft arm bent upward at the elbowLeft arm bent downward at the elbowRight arm straight out to the side Answer: A — Left arm straight out to the side The correct answer is shown above. Try the full quiz for additional practice. Practice more: Iowa Motorcycle Permit Test Practice Questions - Iowa DOT Motorcycle Knowledge Test (Class M Endorsement) Exam →