Tennessee Class D Knowledge Test Practice
Full test preview Question 1 of 40
0 answered 40 remaining
Passing target: 80% (32/40)
Smoke from a brush fire drifts across the interstate, and you can see only about 150 feet ahead. The limit is 70 mph, and the posted minimum is 45 mph. Which speed rule should you follow?
A is on an interstate with smoke reducing visibility to about 150 ft. The supplied limit 70 and minimum 45 are stated; no selected speed is shown.
Correct answer: Drive slow enough that you can stop within the 150 feet you can see
Why
In smoke or fog, the distance that you can see sets your safe speed. The manual tells you to reduce speed, use low beams, stay to the right, avoid passing and listen for traffic. If you cannot see the edge of the road, move well off the road to the right, clear of the travel lane, and switch on your emergency flashers.
Verified against Tennessee Comprehensive Driver License Manual · Adjusting Speed — Limited visibility · p. 60, 89
Report a question issueContinue learning
