Practice question A CMV should: Not have a fire extinguisher, unless transporting hazardous materials.Not have a fire extinguisher, unless the vehicle will be traveling through remote areas.Not have a fire extinguisher.Have a fire extinguisher and other emergency equipment. Answer: D — Have a fire extinguisher and other emergency equipment. The correct answer is shown above. Try the full quiz for additional practice. Practice more: Pennsylvania CDL Tank Test 2 →