Back to Mississippi
Mississippi Class R Knowledge Exam Practice
Full test preview Question 1 of 30
0 answered 30 remaining
Passing target: 24/30 correct (TLA practice target)
Vehicle Safety, Documents & TowingStandalone practice
What condition is required of a vehicle's muffler?
Correct answer: It must work constantly to prevent excessive or unusual noise and smoke.
Why
Maintain the exhaust system and do not use a cutout, bypass, or similar device. The muffler controls exhaust noise; bypassing it defeats that function. A loud or damaged system needs repair rather than a device that routes exhaust around the muffler.
Verified against Mississippi Driver's License Manual · Muffler · p. 19
Report a question issueContinue learning
Related Mississippi questions
A passenger vehicle has been modified so the front fender is 5 inches higher than the rear. What does the Mississippi handbook say about operating that altered vehicle?From what minimum distance must the ordinary vehicle horn be audible under normal conditions?Where should you find the recommended tire pressure for your vehicle?A loose bag and other objects are on the front-seat area before a trip. What should you do?Which set gives Mississippi’s ordinary minimum liability limits, in this order: bodily injury to one person / bodily injury to two or more people / property damage, per crash?What minimum headlamp and rear-lamp equipment does Mississippi require on an ordinary passenger car that is not an antique or street rod?