MO. CDL Practice Test

Which of the following is most likely to get stuck on raised railroad crossings? A. A low-slung car carrier. B. A single axle tractor making a return journey empty. C. A single axle tractor pulling a regular trailer. D. An empty moving van. - Answer- A. A low slung car carrier. Is it true that as long as the engine is not over heated it is completely safe to remove the radiator cap? A. Yes as long as there is no overflow. B. Yes as long as the radiator isn't damaged. C. Yes. D. No. - Answer- D. No. Which of the following should you do when confronted by an aggressive driver? A. Ignore rude gestures and refuse to react negatively. B. If you can safely do it, call the police from a cell phone. C. Avoid eye contact. D. All the above - Answer- D. All the above. Retarders keep you from skidding on the road because... A. They don't - you skid more easily with retarders. B. They help reduce your reaction distance. C. They give you more control over your brakes. D. They help you control your speed. - Answer- A. They don't - you skid more easily with retarders. If you have an automatic transmission, when should you downshift? A. When you start to get drowsy. B. When you have trouble going fast enough. C. When you feel you're driving too fast. D. When you're going down steep grades. - Answer- D. When you're going down steep grades. What happens when you let the air out of hot tires? A. This is a good idea so the extra pressure is relieved. B. It has no effect at all. C. It will cool them down. You will be able to continue your journey sooner. D. This is a bad idea because when the tires cool off, the pressure will be too low. - Answer- D. This is a bad idea because when the tires cool off, the pressure will be too low.