CDL General Knowledge Practice Test Part 4

1. If a commercial motor vehicle becomes stuck on railroad tracks and the crossing signals begin flashing, which direction should the driver move after evacuating the vehicle?

2. When a railroad crossing has multiple tracks, what additional precaution must a driver take before proceeding across the crossing?

3. What is the primary difference in driver responsibility between an active railroad crossing (with lights and gates) and a passive crossing (signs only, no signals)?

4. A school bus driver is transporting 35 students when the bus stalls on railroad tracks at a crossing with no signals visible. The driver attempts to restart the engine twice without success. What is the correct immediate action sequence?

5. A hazmat driver operating a placarded tanker is approaching a railroad crossing with malfunctioning warning devices. The gates are down but the lights are not flashing. No train is visible or audible. What is the correct procedure?

6. A driver operating a 65-foot tractor-semitrailer approaches a railroad crossing with three parallel tracks. The driver stops at the proper distance (15-50 feet) and sees one track is clear with no train visible from either direction. Traffic is heavy on the road beyond the crossing, with vehicles backed up approximately 40 feet past the tracks. What should the driver do?

7. A driver approaches a passive railroad crossing (crossbuck sign only) on a rural road while descending a slight grade. The vehicle is a loaded 60-foot combination vehicle traveling at 40 mph. The crossing is visible from approximately 400 feet away. What is the correct crossing procedure?

8. A driver is crossing railroad tracks when the vehicle’s transmission fails, leaving the truck stalled on the tracks. The driver has attempted restarts twice without success. The crossing has no active warning signals, but the driver hears a train horn in the distance from an unknown direction. The vehicle is a hazmat tanker carrying placarded Class 3 flammable liquids. Which analysis correctly identifies the priority sequence?

9. A school bus driver is transporting 40 students across a railroad crossing with two parallel tracks. After crossing the first track, traffic ahead stops suddenly, preventing the bus from clearing the second track. The bus is now stopped with the rear portion still on the first track. The crossing signals suddenly activate with flashing lights. The driver cannot move forward due to traffic. Which analysis correctly identifies the critical decision?

10. A CDL driver operating a loaded 70-foot tractor-semitrailer is approaching a railroad crossing on a rural highway at 50 mph. The crossing has passive warning signs (crossbucks) only. The road curves 200 feet before the crossing, limiting visibility. A slight downgrade exists before the crossing. Traffic is light. The driver has been on duty for 11 hours and is approaching the end of the 14-hour window. Which comprehensive analysis correctly evaluates all factors and determines the proper approach?